/* ========================================
   VoxSync 全局样式
   设计系统：毛玻璃 + 大圆角 + 淡色系
   ======================================== */

/* ---------- 品牌字体：Inter（拉丁/数字，自托管 48KB；中文自动回退系统优质字体） ---------- */
@font-face{
  font-family:'Inter';
  font-style:normal;
  font-weight:100 900;
  font-display:swap;
  src:url('/fonts/inter-var.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

/* ---------- 主题变量（后台可改）---------- */
:root{
  --primary:#7C5CFF; --primary-light:#9D86FF; --secondary:#8B7BFF; --secondary-light:#A79BFF; --accent:#FF5CA8;
  --bg:#F6F5FB; --bg2:#EEECF6;
  --card-bg:#FFFFFF; --text:#1F2330; --text-light:#7C8494; --text-mute:#8A8FA3;
  --border:rgba(23,32,48,.08); --border-strong:rgba(23,32,48,.16);
  --soft:rgba(124,92,255,.06); --soft2:rgba(124,92,255,.03);
  --wash:#EFEDFB;
  --glow1:rgba(124,92,255,.14); --glow2:rgba(124,92,255,.07); --glow3:rgba(124,92,255,.28);
  --grad-main:linear-gradient(135deg,#7C5CFF,#8B7BFF);
  --grad-hero:linear-gradient(120deg,rgba(124,92,255,.22),rgba(139,123,255,.10)),linear-gradient(150deg,#FAF8FF,#FFFFFF);
  --grad-hero2:linear-gradient(135deg,rgba(124,92,255,.28),rgba(167,155,255,.14)),linear-gradient(150deg,#F4F1FF,#FFFFFF);
  --text-grad:linear-gradient(120deg,#7C5CFF,#8B7BFF);
  --star:#FFB020;
  --thumb:linear-gradient(150deg,#F1F2F5,#E6E8EC); --thumbbox:#9AA1AF;
  --radius:14px; --radius-lg:20px;
  --glass:blur(20px);
  --shadow:0 10px 30px rgba(23,32,48,.08); --shadow-lg:0 20px 50px rgba(23,32,48,.12);
}
/* 皮肤：深空紫（暗色） */
body[data-skin="purple"]{
  --primary:#7C5CFF; --primary-light:#9D86FF; --secondary:#8B7BFF; --secondary-light:#A79BFF; --accent:#FF5CA8;
  --bg:#0B0E14; --bg2:#07090E;
  --card-bg:rgba(20,24,34,.92); --text:#EDEFF7; --text-light:#8B93A7; --text-mute:#5A6170;
  --border:rgba(255,255,255,.08); --border-strong:rgba(255,255,255,.14);
  --soft:rgba(255,255,255,.06); --soft2:rgba(255,255,255,.04);
  --glow1:rgba(124,92,255,.18); --glow2:rgba(139,123,255,.12); --glow3:rgba(124,92,255,.35);
  --grad-main:linear-gradient(135deg,#6D4AFF,#8B7BFF);
  --grad-hero:linear-gradient(120deg,rgba(124,92,255,.28),rgba(139,123,255,.1)),linear-gradient(150deg,#1A1528,#0B0E14);
  --grad-hero2:linear-gradient(135deg,rgba(124,92,255,.32),rgba(255,92,168,.14)),linear-gradient(150deg,#221a38,#0B0E14);
  --text-grad:linear-gradient(120deg,#fff,#9D86FF);
  --star:#FFB020;
  --thumb:linear-gradient(150deg,#1E2436,#0B0E14); --thumbbox:#3A3F52;
  --shadow:0 10px 40px rgba(0,0,0,.5); --shadow-lg:0 20px 60px rgba(0,0,0,.65);
}
/* 皮肤：灰橙白（浅色） */
body[data-skin="orange"]{
  --primary:#F97316; --primary-light:#FB923C; --secondary:#E85D04; --secondary-light:#F97316; --accent:#EF4444;
  --bg:#F8F5F0; --bg2:#F1ECE4;
  --card-bg:#FFFFFF; --text:#23262E; --text-light:#7C8494; --text-mute:#A6ADBC;
  --border:rgba(23,32,48,.08); --border-strong:rgba(23,32,48,.16);
  --soft:rgba(23,32,48,.05); --soft2:rgba(23,32,48,.03);
  --glow1:rgba(249,115,22,.14); --glow2:rgba(249,115,22,.07); --glow3:rgba(249,115,22,.28);
  --grad-main:linear-gradient(135deg,#EA580C,#F59E0B);
  --grad-hero:linear-gradient(120deg,rgba(249,115,22,.18),rgba(255,176,32,.08)),linear-gradient(150deg,#FFF7ED,#FFFFFF);
  --grad-hero2:linear-gradient(135deg,rgba(249,115,22,.2),rgba(239,68,68,.08)),linear-gradient(150deg,#FFF1E6,#FFFFFF);
  --text-grad:linear-gradient(120deg,#F97316,#E85D04);
  --star:#FFB020;
  --thumb:linear-gradient(150deg,#F1F2F5,#E6E8EC); --thumbbox:#9AA1AF;
  --shadow:0 10px 30px rgba(23,32,48,.08); --shadow-lg:0 20px 50px rgba(23,32,48,.12);
}
/* 皮肤：松石绿（暗色） */
body[data-skin="green"]{
  --primary:#14B8A6; --primary-light:#5EEAD4; --secondary:#FBBF24; --secondary-light:#FCD34D; --accent:#F472B6;
  --bg:#0B1210; --bg2:#060B09;
  --card-bg:rgba(16,28,24,.92); --text:#EAF2EF; --text-light:#8FA8A0; --text-mute:#5C736B;
  --border:rgba(255,255,255,.08); --border-strong:rgba(255,255,255,.15);
  --soft:rgba(255,255,255,.06); --soft2:rgba(255,255,255,.04);
  --glow1:rgba(20,184,166,.18); --glow2:rgba(251,191,36,.1); --glow3:rgba(20,184,166,.35);
  --grad-main:linear-gradient(135deg,#0D9488,#F59E0B);
  --grad-hero:linear-gradient(120deg,rgba(20,184,166,.3),rgba(251,191,36,.08)),linear-gradient(150deg,#0F2A24,#0B1210);
  --grad-hero2:linear-gradient(135deg,rgba(20,184,166,.32),rgba(244,114,182,.12)),linear-gradient(150deg,#10261F,#0B1210);
  --text-grad:linear-gradient(120deg,#fff,#5EEAD4);
  --star:#FFB020;
  --thumb:linear-gradient(150deg,#123B32,#0B1210); --thumbbox:#3C6B5F;
  --shadow:0 10px 40px rgba(0,0,0,.5); --shadow-lg:0 20px 60px rgba(0,0,0,.65);
}
/* 皮肤：晨雾蓝（浅色） */
body[data-skin="blue"]{
  --primary:#3B82F6; --primary-light:#60A5FA; --secondary:#06B6D4; --secondary-light:#22D3EE; --accent:#F472B6;
  --bg:#F2F5FA; --bg2:#E9EEF6;
  --card-bg:#FFFFFF; --text:#1E293B; --text-light:#64748B; --text-mute:#94A3B8;
  --border:rgba(30,41,59,.08); --border-strong:rgba(30,41,59,.16);
  --soft:rgba(30,41,59,.05); --soft2:rgba(30,41,59,.03);
  --glow1:rgba(59,130,246,.13); --glow2:rgba(6,182,212,.08); --glow3:rgba(59,130,246,.26);
  --grad-main:linear-gradient(135deg,#2563EB,#0891B2);
  --grad-hero:linear-gradient(120deg,rgba(59,130,246,.16),rgba(6,182,212,.08)),linear-gradient(150deg,#F0F6FF,#FFFFFF);
  --grad-hero2:linear-gradient(135deg,rgba(59,130,246,.18),rgba(244,114,182,.08)),linear-gradient(150deg,#F0F4FF,#FFFFFF);
  --text-grad:linear-gradient(120deg,#3B82F6,#06B6D4);
  --star:#F59E0B;
  --thumb:linear-gradient(150deg,#EEF2F8,#E4E9F1); --thumbbox:#94A3B8;
  --shadow:0 10px 30px rgba(30,41,59,.08); --shadow-lg:0 20px 50px rgba(30,41,59,.12);
}

/* ---------- 日夜模式（跟随任意皮肤：只压暗中性色，主色保留）---------- */
/* 夜间 */
html[data-theme="dark"] body, body[data-theme="dark"]{
  --bg:#0D0F14; --bg2:#090A0F;
  --card-bg:rgba(23,26,34,.94);
  --text:#ECEEF6; --text-light:#9AA1B2; --text-mute:#5F6675;
  --border:rgba(255,255,255,.09); --border-strong:rgba(255,255,255,.17);
  --soft:rgba(255,255,255,.07); --soft2:rgba(255,255,255,.045);
  --wash:#201E33;
  --thumb:linear-gradient(150deg,#1E2436,#0B0E14); --thumbbox:#3A3F52;
  --shadow:0 10px 40px rgba(0,0,0,.5); --shadow-lg:0 20px 60px rgba(0,0,0,.65);
  --grad-hero:linear-gradient(120deg,rgba(255,255,255,.05),rgba(255,255,255,.02)),linear-gradient(150deg,#151923,#0D0F14);
  --grad-hero2:linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.02)),linear-gradient(150deg,#181d29,#0D0F14);
}
/* 日间（把暗色皮肤拉回浅色时使用） */
html[data-theme="light"] body, body[data-theme="light"]{
  --bg:#F8F5F0; --bg2:#F1ECE4;
  --card-bg:#FFFFFF;
  --text:#23262E; --text-light:#7C8494; --text-mute:#A6ADBC;
  --border:rgba(23,32,48,.08); --border-strong:rgba(23,32,48,.16);
  --soft:rgba(23,32,48,.05); --soft2:rgba(23,32,48,.03);
  --thumb:linear-gradient(150deg,#F1F2F5,#E6E8EC); --thumbbox:#9AA1AF;
  --shadow:0 10px 30px rgba(23,32,48,.08); --shadow-lg:0 20px 50px rgba(23,32,48,.12);
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Microsoft YaHei UI', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
    padding-bottom: 80px; /* 底部导航空间 */
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ---------- 顶栏 ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    border-bottom: 1px solid var(--border);
    gap: 16px;
}
.topbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    min-width: 120px;
}
.user-avatar, .avatar-fallback {
    width: 40px; height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px var(--primary);
}
.avatar-fallback {
    display: flex; align-items: center; justify-content: center;
    background: var(--grad-main);
    color: #fff;
}
.avatar-fallback svg{ display:block; }
.nickname { font-size: 14px; font-weight: 600; white-space: nowrap; }

.topbar-center .logo {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 26px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
    white-space: nowrap;
}
.topbar-center .logo .logo-mark { flex: 0 0 auto; }

.topbar-right { display: flex; align-items: center; gap: 12px; }
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}
.search-box input {
    width: 200px;
    padding: 8px 36px 8px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 14px;
    transition: width 0.3s;
}
.search-box input:focus { width: 260px; outline: none; border-color: var(--primary); }
.search-icon { position: absolute; right: 12px; font-size: 14px; }

.theme-toggle {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border);
    font-size: 18px;
    display: flex; align-items: center; justify-content: center;
    transition: transform 0.2s;
}
/* 明暗由后台皮肤统一控制，隐藏前台日夜切换按钮 */
.theme-toggle { display: none !important; }
.theme-toggle:hover { transform: scale(1.1); }

/* VS_TOPUSER 电脑端登录按钮 v3（照用户参考图）：圆角矩形纯色紫 + 进入图标 + 「登录」，紧凑放右上角 */
.top-login {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 36px;
    padding: 0 16px;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .02em;
    text-decoration: none;
    flex: 0 0 auto;
    box-shadow: 0 2px 8px color-mix(in srgb, var(--primary) 30%, transparent);
    transition: filter .18s, box-shadow .18s, transform .12s;
}
.top-login:hover {
    filter: brightness(1.09);
    box-shadow: 0 4px 14px color-mix(in srgb, var(--primary) 42%, transparent);
}
.top-login:active { transform: scale(.96); }
.top-login.on { display: inline-flex; }
/* VS_TOPUSER 电脑端登录后用户胶囊 v2（照用户参考图风格）：纯紫圆角矩形 = 白圈头像 + 白字昵称 + 退出，与登录按钮同款 36px/10px 圆角 */
.top-user {
    display: none;
    align-items: center;
    gap: 7px;
    height: 36px;
    padding: 0 5px 0 5px;
    border-radius: 10px;
    background: var(--primary);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--primary) 30%, transparent);
    flex: 0 0 auto;
}
.top-user.on { display: inline-flex; }
.tu-ava {
    width: 26px; height: 26px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .24);
    color: #fff;
    font-size: 12.5px;
    font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    flex: 0 0 26px;
}
.tu-out {
    width: 26px; height: 26px;
    border-radius: 7px;
    border: 0;
    background: rgba(255, 255, 255, .16);
    color: rgba(255, 255, 255, .92);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex: 0 0 26px;
    transition: background .15s, color .15s;
}
.tu-out:hover { background: rgba(0, 0, 0, .22); color: #fff; }
@media(max-width:1023px){
    .top-login, .top-user { display: none !important; }
}

/* ---------- 侧边菜单 ---------- */
.side-menu {
    position: fixed;
    top: 0; left: -320px;
    width: 300px; height: 100vh;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    border-right: 1px solid var(--border);
    z-index: 200;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    padding: 20px;
    gap: 6px;
    overflow-y: auto;
}
.side-menu.open { left: 0; }
.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.menu-overlay.show { opacity: 1; pointer-events: auto; }

/* VS_MEFIX 抽屉用户卡已删：用户信息与退出登录统一在「我的」页(/me) */

.menu-section { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.menu-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s;
}
.menu-item:hover { background: var(--primary-light); }
.menu-icon { font-size: 22px; width: 32px; text-align: center; }
.menu-item-text { display: flex; flex-direction: column; }
.menu-item-text span { font-weight: 600; font-size: 15px; }
.menu-item-text small { color: var(--text-light); font-size: 12px; }

.menu-footer { padding-top: 12px; }
.btn-login, .btn-logout {
    width: 100%;
    padding: 12px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
}
.btn-login { background: var(--primary); color: #fff; }
.btn-logout { background: var(--border); color: var(--text); }

/* ---------- 筛选栏 ---------- */
.filter-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px 24px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 64px;
    z-index: 50;
}
.filter-group { display: flex; align-items: center; gap: 8px; }
.filter-group label { font-size: 14px; color: var(--text-light); font-weight: 500; }
.filter-group select {
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
}
/* VS_FILTCARD 筛选条件卡（侧栏/抽屉通用）：标题行 + 两列下拉 + 排序段控 + 标签云 + 应用按钮 */
.vs-filters-c {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.fv-h { display: flex; align-items: center; gap: 8px; }
.fv-h b { font-size: 14px; font-weight: 700; color: var(--text); }
.fv-hic {
    width: 26px; height: 26px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 9px;
    background: color-mix(in srgb, var(--primary) 12%, transparent);
    color: var(--primary);
}
/* VS_FILTCHIP 筛选胶囊行（侧栏/抽屉通用）：紧凑圆胶囊「标签 值 ▾」，select 透明覆盖点击即弹原生下拉 */
.fv-chiprow {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}
.vs-filters-c .filter-group {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 11px;
    border-radius: 999px;
    background: var(--soft);
    border: 1.5px solid transparent;
    transition: border-color .18s, background .18s;
    max-width: 100%;
}
.vs-filters-c .filter-group .fc-lab {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-mute);
    flex: 0 0 auto;
    letter-spacing: .02em;
}
.vs-filters-c .filter-group .fc-val {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text);
    max-width: 92px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.vs-filters-c .filter-group .fc-ar {
    flex: 0 0 auto;
    color: var(--text-mute);
    transition: color .18s;
}
.vs-filters-c .filter-group select {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;   /* VS_FCHIPMENU 展开由自定义菜单接管，select 仅作数据源 */
    appearance: none; -webkit-appearance: none;
    border: 0;
    padding: 0;
    margin: 0;
    background: transparent;
    font-size: 16px;
}
.vs-filters-c .filter-group.on,
.vs-filters-c .filter-group.open {
    background: color-mix(in srgb, var(--primary) 10%, var(--soft));
    border-color: color-mix(in srgb, var(--primary) 50%, transparent);
}
.vs-filters-c .filter-group.on .fc-lab,
.vs-filters-c .filter-group.on .fc-val,
.vs-filters-c .filter-group.open .fc-lab,
.vs-filters-c .filter-group.open .fc-val { color: var(--primary); }
.vs-filters-c .filter-group.on .fc-ar { color: var(--primary); }
.vs-filters-c .filter-group.open .fc-ar { transform: rotate(180deg); color: var(--primary); }
/* VS_FCHIPMENU 自定义下拉菜单：白卡圆角阴影选项列表，选中项紫色勾 */
.fc-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 148px;
    z-index: 80;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 12px 32px rgba(15, 18, 35, .16);
    padding: 5px;
    animation: fcIn .16s ease;
}
.fc-opt {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    width: 100%;
    border: 0;
    background: transparent;
    color: var(--text);
    font-size: 13px;
    padding: 9px 11px;
    border-radius: 9px;
    cursor: pointer;
    text-align: left;
    white-space: nowrap;
}
.fc-opt:hover { background: color-mix(in srgb, var(--primary) 9%, transparent); }
.fc-opt.on {
    color: var(--primary);
    font-weight: 700;
    background: color-mix(in srgb, var(--primary) 12%, transparent);
}
@keyframes fcIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.fv-sortrow, .fv-tagwrap { display: flex; flex-direction: column; gap: 7px; }
.fv-slab { font-size: 10.5px; font-weight: 700; color: var(--text-mute); letter-spacing: .04em; }
.fv-seg {
    display: flex; gap: 3px;
    background: var(--soft);
    border-radius: 11px;
    padding: 3px;
}
.fv-seg button {
    flex: 1;
    border: 0;
    background: transparent;
    padding: 7px 0;
    border-radius: 8px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-mute);
    cursor: pointer;
    transition: background .15s, color .15s;
}
.fv-seg button.on {
    background: var(--card-bg);
    color: var(--primary);
    box-shadow: 0 1px 5px rgba(20, 24, 50, .12);
}
.vs-tagcloud { display: flex; flex-wrap: wrap; gap: 6px; }
.vs-tchip {
    border: 1.5px solid var(--border);
    background: var(--card-bg);
    color: var(--text-light);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 13px;
    border-radius: 999px;
    cursor: pointer;
    transition: border-color .15s, background .15s, color .15s;
}
.vs-tchip:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); }
.vs-tchip.on {
    background: color-mix(in srgb, var(--primary) 10%, transparent);
    border-color: var(--primary);
    color: var(--primary);
}
.fv-apply {
    display: flex; align-items: center; justify-content: center; gap: 7px;
    border: 0;
    background: var(--primary);
    color: #fff;
    font-size: 13.5px;
    font-weight: 700;
    padding: 11px 0;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 12px color-mix(in srgb, var(--primary) 28%, transparent);
    transition: transform .15s, opacity .15s;
}
.fv-apply:hover { transform: translateY(-1px); }
.fv-apply:active { transform: none; }

/* ---- 学习概览卡（侧栏/抽屉通用）：三行 图标+说明+数字，整行可点筛选 ---- */
.ov-card { display: flex; flex-direction: column; }
.ov-list { display: flex; flex-direction: column; gap: 7px; }
.ov-cell {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 11px;
    background: var(--soft);
    border-radius: 12px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color .18s, background .18s;
}
.ov-ic {
    width: 30px; height: 30px; flex: 0 0 30px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 9px;
}
.ov-b { background: #E8F1FE; color: #2E6FD8; }
.ov-g { background: #E8F8F0; color: #1E8E4E; }
.ov-o { background: #FDF1E2; color: #C77714; }
.ov-tx { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.ov-tx b { font-size: 12.5px; font-weight: 700; color: var(--text); white-space: nowrap; }
.ov-tx small { font-size: 10.5px; color: var(--text-light); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ov-num { font-size: 17px; font-weight: 800; color: var(--text); line-height: 1.1; font-variant-numeric: tabular-nums; }
.ov-cell.on { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 8%, var(--soft)); }
.ov-cell.on .ov-tx b { color: var(--primary); }
/* 暗色下浅色徽标提亮为深底亮字 */
[data-theme="dark"] .ov-b { background: #1D2A45; color: #7FB0FF; }
[data-theme="dark"] .ov-g { background: #12301F; color: #5BD79A; }
[data-theme="dark"] .ov-o { background: #3A2A14; color: #F0B269; }

/* ---------- 视频网格 ---------- */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 24px;
}
@media (max-width: 1200px) { .video-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px)  { .video-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; padding: 14px; } }
@media (max-width: 600px)  { .video-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 10px; } }

.video-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.25s, box-shadow 0.25s;
}
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.video-thumbnail {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    overflow: hidden;
}
.video-thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.thumb-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 48px;
}
.video-creator {
    position: absolute;
    top: 8px; left: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(8px);
    border-radius: 20px;
    padding: 4px 10px 4px 4px;
}
.video-creator img { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; }
.video-creator span { color: #fff; font-size: 12px; font-weight: 500; }

.video-info { padding: 12px 14px; }
.video-title {
    font-size: 15px;
    font-weight: 700;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 4px;
}
.video-desc {
    font-size: 13px;
    color: var(--text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}
.video-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 11px;
    background: var(--bg);
    color: var(--text-light);
    border: 1px solid var(--border);
}
.tag-accent { background: var(--primary); color: #fff; border-color: transparent; }

/* 难度星级胶囊 */
.vsdiff{
    display:inline-flex;align-items:center;gap:5px;
    padding:2px 9px 2px 7px;border-radius:10px;
    background:#FFFBEB;color:#92400E;border:1px solid #FDE68A;
    font-size:11px;font-weight:600;line-height:1.5;white-space:nowrap;
}
.vsdiff-stars{display:inline-flex;align-items:center;gap:1.5px}
.vsdiff-stars svg{width:12px;height:12px;display:block}
.vsdiff-on{color:#F59E0B}
.vsdiff-off{color:#E2E5EC}

/* ---------- 底部导航 ---------- */
.bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 0;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    border-top: 1px solid var(--border);
    z-index: 100;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 4px 20px;
    border-radius: 12px;
    transition: color 0.2s;
}
.nav-icon { font-size: 22px; }
.nav-label { font-size: 11px; font-weight: 500; }
.nav-item.active { color: var(--primary); }
.nav-item.active .nav-icon { transform: scale(1.15); }

/* ---------- 回到顶部 ---------- */
.back-to-top {
    position: fixed;
    right: 20px; bottom: 90px;
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 22px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.3s, transform 0.3s;
    z-index: 99;
}
.back-to-top.visible { opacity: 1; transform: scale(1); }
.back-to-top:hover { background: var(--secondary); }

/* ---------- 按钮 ---------- */
.btn-primary {
    padding: 10px 24px;
    border-radius: var(--radius);
    background: var(--grad-main);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    box-shadow: 0 8px 22px rgba(0,0,0,.18);
    transition: opacity 0.2s, transform 0.1s;
}
.btn-primary svg{display:block}
.btn-primary:hover { opacity: 0.92; }
.btn-primary:active { transform: scale(0.97); }
.btn-primary.btn-block { width: 100%; padding: 14px; font-size: 16px; }

.btn-copy {
    padding: 8px 20px;
    border-radius: var(--radius);
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: 14px;
    font-weight: 500;
}

/* ---------- Toast ---------- */
.toast {
    position: fixed;
    top: 80px; left: 50%;
    transform: translateX(-50%) translateY(-20px);
    padding: 12px 24px;
    border-radius: var(--radius);
    background: var(--text);
    color: var(--bg);
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: #EF4444; color: #fff; }

/* ---------- 登录页 ---------- */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--bg));
}
.auth-container {
    width: 100%;
    max-width: 420px;
    padding: 40px 32px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.auth-logo { text-align: center; margin-bottom: 32px; }
.auth-logo-text {
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.auth-subtitle { color: var(--text-light); font-size: 14px; margin-top: 4px; }

.auth-tabs { display: flex; gap: 8px; margin-bottom: 24px; }
.auth-tab {
    flex: 1;
    padding: 10px;
    border-radius: var(--radius);
    background: transparent;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    transition: all 0.2s;
}
.auth-tab.active { background: var(--primary); color: #fff; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    transition: border-color 0.2s;
}
.form-group input:focus { outline: none; border-color: var(--primary); }

.form-options { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.remember-me { display: flex; align-items: center; gap: 6px; font-size: 14px; cursor: pointer; }
.forgot-link { font-size: 14px; color: var(--primary); }

.social-login { margin-top: 28px; }
.social-divider {
    text-align: center;
    position: relative;
    margin-bottom: 20px;
}
.social-divider::before, .social-divider::after {
    content: ''; position: absolute; top: 50%; left: 0; right: 0;
    height: 1px; background: var(--border);
}
.social-divider span {
    position: relative; z-index: 1;
    padding: 0 16px; background: var(--card-bg);
    font-size: 13px; color: var(--text-light);
}
.social-buttons { display: flex; gap: 16px; justify-content: center; }
.social-btn {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    padding: 16px 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    font-size: 13px;
    transition: transform 0.2s;
}
.social-btn:hover { transform: scale(1.05); }
.social-icon { font-size: 28px; }

/* QR 弹窗 */
.qr-modal {
    position: fixed; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.5);
    z-index: 300;
    padding: 20px;
}
.qr-content {
    position: relative;
    width: 100%; max-width: 340px;
    padding: 32px 24px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    border-radius: var(--radius-lg);
    text-align: center;
}
.qr-close {
    position: absolute; top: 12px; right: 12px;
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--bg);
    font-size: 16px;
}
.qr-box {
    width: 200px; height: 200px;
    margin: 16px auto;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: var(--bg); border-radius: var(--radius);
    font-size: 14px; color: var(--text-light);
    border: 2px dashed var(--border);
}
.qr-account { font-size: 14px; font-weight: 600; margin: 12px 0; }

/* ---------- 播放页 ---------- */
.player-page { padding-bottom: 0; }

.back-btn {
    position: fixed; top: 16px; left: 16px;
    z-index: 50;
    padding: 8px 16px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.player-section {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 0;
    min-height: 50vh;
    background: #000;
}
@media (max-width: 900px) { .player-section { grid-template-columns: 1fr; } }

.video-container {
    position: relative;
    background: #000;
    display: flex; align-items: center; justify-content: center;
}
#videoPlayer { width: 100%; max-height: 60vh; object-fit: contain; }

/* 倍速工具栏 */
.speed-toolbar {
    position: absolute; bottom: 16px; left: 50%;
    transform: translateX(-50%);
    display: flex; align-items: center; gap: 10px;
    padding: 8px 18px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    color: #fff;
}
.speed-label { font-size: 13px; }
#speedRange { width: 120px; accent-color: var(--primary); }
.speed-value { font-size: 13px; font-weight: 600; min-width: 40px; }

/* 字幕区域 */
.subtitle-area {
    display: flex; flex-direction: column;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    overflow-y: auto;
    max-height: 60vh;
}
.subtitle-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0;
    background: var(--card-bg);
}
.subtitle-mode { display: flex; gap: 4px; }
.mode-btn {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 13px;
    background: transparent;
    color: var(--text-light);
    transition: all 0.2s;
}
.mode-btn.active { background: var(--primary); color: #fff; }
.subtitle-toggle { font-size: 18px; padding: 4px 8px; }

.subtitle-content { padding: 12px 16px; flex: 1; }
.subtitle-line {
    padding: 10px 14px;
    margin-bottom: 8px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s;
    line-height: 1.8;
}
.subtitle-line:hover { background: var(--bg); }
.subtitle-line.active { background: var(--primary-light); }
.sub-en { font-size: 16px; font-weight: 500; }
.sub-zh { font-size: 14px; color: var(--text-light); margin-top: 2px; }

/* 逐词高亮 */
.sub-word { cursor: pointer; transition: color 0.2s; border-radius: 3px; padding: 0 1px; }
.sub-word:hover { background: var(--primary-light); }
.word-current { color: var(--secondary); font-weight: 700; }
.word-past { color: var(--text-light); opacity: 0.6; }
.word-future { color: var(--text); }

.no-subtitle { text-align: center; color: var(--text-light); padding: 40px; }

/* 功能按钮 */
.feature-buttons {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
}
.feature-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 18px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    background: var(--bg);
    color: var(--text-light);
    transition: all 0.2s;
}
.feature-btn.active { background: var(--primary); color: #fff; }

/* 功能面板 */
.feature-panels { background: var(--bg); }
.feature-panel { display: none; padding: 20px; }
.feature-panel.active { display: block; }
.panel-header { margin-bottom: 16px; }
.panel-header h3 { font-size: 18px; }
.panel-desc { font-size: 13px; color: var(--text-light); margin-top: 2px; }

/* 跟读 */
.current-sentence {
    padding: 16px;
    background: var(--card-bg);
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 16px;
    min-height: 60px;
    display: flex; align-items: center;
    border-left: 4px solid var(--primary);
}
.ab-compare { display: flex; gap: 12px; margin-bottom: 20px; }
.ab-item {
    flex: 1;
    padding: 14px;
    background: var(--card-bg);
    border-radius: var(--radius);
    text-align: center;
}
.ab-label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.ab-play {
    padding: 8px 16px;
    border-radius: var(--radius);
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
}
.ab-play:disabled { opacity: 0.4; cursor: not-allowed; }

.record-section { text-align: center; }
.record-btn {
    display: inline-flex; flex-direction: column; align-items: center; gap: 4px;
    padding: 20px 40px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    transition: transform 0.2s;
}
.record-btn:hover { transform: scale(1.05); }
.record-btn.recording { animation: pulse 1.5s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.7; } }
.record-icon { font-size: 32px; }
.record-text { font-size: 15px; font-weight: 600; }
.record-status { font-size: 13px; color: var(--text-light); margin-top: 10px; }

/* 词卡 */
.wordcard-list { display: flex; flex-direction: column; gap: 10px; }
.wordcard-item {
    padding: 14px;
    background: var(--card-bg);
    border-radius: var(--radius);
    cursor: pointer;
    transition: transform 0.2s;
}
.wordcard-item:hover { transform: translateX(4px); }
.wordcard-word { display: flex; align-items: center; gap: 10px; }
.wc-text { font-size: 16px; font-weight: 700; }
.wc-level {
    padding: 2px 8px;
    border-radius: 8px;
    font-size: 11px;
    background: var(--primary); color: #fff;
}
.wordcard-trans { font-size: 14px; color: var(--text-light); margin-top: 4px; }

/* 练习 */
.exercise-item {
    padding: 16px;
    background: var(--card-bg);
    border-radius: var(--radius);
    margin-bottom: 12px;
}
.exercise-sentence { font-size: 16px; margin-bottom: 12px; line-height: 1.8; }
.exercise-input-wrap { display: flex; gap: 10px; }
.exercise-input {
    flex: 1;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    background: var(--bg);
    color: var(--text);
}
.btn-check {
    padding: 10px 20px;
    border-radius: var(--radius);
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}
.exercise-result { margin-top: 10px; padding: 10px; border-radius: var(--radius); font-size: 14px; }
.exercise-result.correct { background: #D1FAE5; color: #065F46; }
.exercise-result.wrong { background: #FEE2E2; color: #991B1B; }

/* 听写 */
.dictation-area {
    padding: 16px 20px;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    position: sticky;
    bottom: 0;
}
.dictation-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.dictation-header h4 { font-size: 15px; }
.hint-btn {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 13px;
    background: var(--accent);
    color: #fff;
    font-weight: 500;
}
.dictation-input-wrap { display: flex; gap: 10px; }
.dictation-input {
    flex: 1;
    padding: 10px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    background: var(--bg);
    color: var(--text);
}
.btn-submit {
    padding: 10px 24px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    font-weight: 600;
}
.dictation-result { margin-top: 10px; padding: 12px; border-radius: var(--radius); background: var(--bg); }
.result-accuracy { font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.result-correct { color: #065F46; font-size: 14px; }
.result-yours { color: var(--text-light); font-size: 14px; margin-top: 2px; }

/* 单词弹窗 */
.word-modal {
    position: fixed; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.4);
    z-index: 300;
    padding: 20px;
}
.word-modal-content {
    position: relative;
    width: 100%; max-width: 400px;
    padding: 28px 24px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.word-close {
    position: absolute; top: 12px; right: 12px;
    width: 32px; height: 32px; border-radius: 50%; background: var(--bg); font-size: 16px;
}
.word-header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.word-header h2 { font-size: 28px; font-weight: 800; }
.word-pronounce { font-size: 24px; padding: 6px; border-radius: 50%; background: var(--primary-light); }
.word-phonetic { font-size: 15px; color: var(--text-light); margin-bottom: 12px; }
.word-translation { font-size: 16px; margin-bottom: 8px; }
.word-example { font-size: 14px; color: var(--text-light); font-style: italic; margin-bottom: 16px; }
.btn-favorite-word {
    width: 100%;
    padding: 12px;
    border-radius: var(--radius);
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    display: flex; align-items: center; justify-content: center; gap: 6px;
}

/* ---------- 空状态 ---------- */
.empty-state { grid-column: 1 / -1; text-align: center; padding: 60px; color: var(--text-light); font-size: 16px; }
.no-data { text-align: center; color: var(--text-light); padding: 20px; font-size: 14px; }

/* ---------- 后台 ---------- */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 240px; min-height: 100vh;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    border-right: 1px solid var(--border);
    padding: 20px 12px;
    display: flex; flex-direction: column;
    gap: 4px;
    position: fixed; left: 0; top: 0; bottom: 0;
    overflow-y: auto;
}
.admin-logo {
    font-size: 22px; font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    padding: 8px 12px; margin-bottom: 16px;
}
.admin-nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 14px; font-weight: 500;
    transition: background 0.2s;
}
.admin-nav-item:hover { background: var(--primary-light); }
.admin-nav-item.active { background: var(--primary); color: #fff; }
.admin-nav-icon { font-size: 18px; width: 24px; text-align: center; }

.admin-main {
    margin-left: 240px;
    flex: 1;
    padding: 24px;
}
@media (max-width: 768px) {
    .admin-sidebar { transform: translateX(-100%); transition: transform 0.3s; z-index: 200; }
    .admin-sidebar.open { transform: translateX(0); }
    .admin-main { margin-left: 0; padding: 14px; }
}

.admin-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.admin-header h1 { font-size: 24px; }

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}
@media (max-width: 900px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .stats-grid { grid-template-columns: 1fr; } }

.stat-card {
    padding: 20px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.stat-value { font-size: 32px; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 14px; color: var(--text-light); margin-top: 4px; }

/* 表格 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
}
.data-table th, .data-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.data-table th { background: var(--bg); font-weight: 600; color: var(--text-light); }
.data-table tr:hover td { background: var(--bg); }

/* 模态框 */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex; align-items: center; justify-content: center;
    z-index: 300;
    padding: 20px;
}
.modal-box {
    width: 100%; max-width: 600px;
    max-height: 85vh; overflow-y: auto;
    padding: 28px;
    background: var(--card-bg);
    backdrop-filter: var(--glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}
.modal-box h2 { font-size: 20px; margin-bottom: 20px; }

/* 表单 */
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.form-row input,
.form-row select,
.form-row textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
.form-row textarea { min-height: 100px; resize: vertical; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* 标签/徽章 */
.badge { padding: 2px 8px; border-radius: 8px; font-size: 12px; font-weight: 500; }
.badge-green { background: #D1FAE5; color: #065F46; }
.badge-red { background: #FEE2E2; color: #991B1B; }
.badge-yellow { background: #FEF3C7; color: #92400E; }

/* 颜色选择器 */
.color-picker-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.color-picker-row label { flex: 1; font-size: 14px; font-weight: 500; }
.color-picker-row input[type="color"] {
    width: 60px; height: 40px; border: none; border-radius: var(--radius); cursor: pointer;
}
.color-picker-row .color-value { font-size: 13px; color: var(--text-light); font-family: monospace; }

/* 滑块 */
input[type="range"] { accent-color: var(--primary); }
.range-value { font-size: 14px; font-weight: 600; color: var(--primary); min-width: 40px; }

/* 开关 */
.toggle-switch { position: relative; width: 50px; height: 28px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute; cursor: pointer; inset: 0;
    background: var(--border); border-radius: 14px;
    transition: background 0.3s;
}
.toggle-slider::before {
    content: ''; position: absolute; top: 3px; left: 3px;
    width: 22px; height: 22px; border-radius: 50%;
    background: #fff; transition: transform 0.3s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--primary); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(22px); }

/* 上传区域 */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s;
}
.upload-area:hover { border-color: var(--primary); }
.upload-area.dragover { border-color: var(--primary); background: var(--primary-light); }
.upload-icon { font-size: 40px; margin-bottom: 10px; }
.upload-text { font-size: 15px; color: var(--text-light); }

/* 主题预览块 */
.theme-preview {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}
.theme-color-block {
    padding: 16px;
    border-radius: var(--radius);
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
}


/* ===== VOXSYNC-PLAYER-LAYOUT-v1 播放页布局重组 ===== */

/* 整体：左右分栏，高度贴合视口，右栏内部滚动 */
.player-section {
    display: grid;
    grid-template-columns: minmax(0, 3.4fr) minmax(0, 1.6fr);
    gap: 0;
    height: clamp(420px, calc(100vh - 70px), 1100px);
    min-height: 0;
    background: #000;
}
.video-col {
    position: relative;
    min-width: 0;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}
#videoPlayer { width: 100%; max-height: none; height: 100%; object-fit: contain; background: #000; }

/* 句子计数：右下角 */
.video-counter {
    position: absolute;
    right: 12px;
    bottom: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    background: rgba(0,0,0,0.65);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .5px;
    pointer-events: none;
    z-index: 3;
}

/* 右栏 */
.side-panel {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    background: var(--card-bg, #fff);
    border-left: 1px solid var(--border, #e6e8f0);
}
.side-tabs {
    display: flex;
    gap: 2px;
    padding: 8px 8px 0;
    background: var(--card-bg, #fff);
    border-bottom: 1px solid var(--border, #e6e8f0);
    flex: 0 0 auto;
}
.side-tab {
    flex: 1 1 0;
    min-width: 0;
    padding: 9px 4px;
    border: 0;
    background: transparent;
    color: var(--text-light, #8a90a2);
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    white-space: nowrap;
    transition: color .15s, background .15s;
}
.side-tab:hover { color: var(--text, #1f2330); }
.side-tab.active {
    color: var(--primary, #4f6ef7);
    background: var(--primary-light, #e8edff);
    box-shadow: inset 0 -2px 0 var(--primary, #4f6ef7);
}

/* 内容区：撑满剩余高度并滚动 */
.side-body {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.side-view { display: none; }
.side-view.active { display: block; }

/* 字幕区在右栏内：撑满，不再自带限高 */
.side-body .subtitle-area {
    display: flex;
    flex-direction: column;
    max-height: none;
    height: 100%;
    background: transparent;
    overflow: visible;
}
.side-body .subtitle-content { padding: 10px 12px; flex: 1 1 auto; }

/* 字幕行：更像参考站的紧凑列表 */
.side-body .subtitle-line {
    padding: 8px 12px;
    margin-bottom: 6px;
    border-radius: 10px;
    line-height: 1.55;
    transition: background .15s;
}
.side-body .sub-en { font-size: 14.5px; color: var(--text, #1f2330); }
.side-body .sub-zh { font-size: 12.5px; color: var(--text-light, #8a90a2); margin-top: 3px; }
.side-body .subtitle-line.active { background: var(--primary-light, #e8edff); }

/* 盲听：句子占位成条，点击可跳转 */
.subtitle-content.blind-mode .subtitle-line {
    min-height: 34px;
    background: var(--bg, #f5f6fa);
    opacity: .55;
}
.subtitle-content.blind-mode .subtitle-line.active {
    opacity: 1;
    background: var(--primary-light, #e8edff);
}

/* 循环按钮激活态 */
.subtitle-toggle.loop-on { background: var(--primary, #4f6ef7); color: #fff; border-radius: 12px; }

/* ===== 逐词高亮三态：加大对比 ===== */
.sub-word {
    display: inline-block;
    padding: 0 2px;
    border-radius: 4px;
    transition: color .15s, background .15s, opacity .15s;
}
.word-future { color: var(--text-light, #98a0b3); opacity: .75; }
.word-past   { color: var(--primary, #4f6ef7); opacity: .95; }
.word-current {
    color: #fff;
    background: var(--primary, #4f6ef7);
    font-weight: 700;
    padding: 0 5px;
    box-shadow: 0 2px 8px rgba(79,110,247,.35);
}

/* ===== 响应式 ===== */

/* 大屏：给右侧更多空间 */
@media (min-width: 1440px) {
    .player-section { grid-template-columns: minmax(0, 16fr) minmax(0, 9fr); }
}

/* 平板 / 小笔记本：收窄比例 */
@media (max-width: 1200px) {
    .player-section { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

/* 窄屏：改单列，视频吸顶 */
@media (max-width: 900px) {
    .player-section {
        grid-template-columns: 1fr;
        height: auto;
    }
    .video-col {
        position: sticky;
        top: 0;
        z-index: 20;
    }
    #videoPlayer { max-height: 44vh; height: auto; }
    .side-panel { border-left: 0; border-top: 1px solid var(--border, #e6e8f0); }
    .side-body { max-height: none; overflow: visible; }
    .side-body .subtitle-area { height: auto; }
    .side-body .subtitle-content { max-height: 40vh; overflow-y: auto; }
}

/* 手机：标签更紧凑，允许横向滚动 */
@media (max-width: 600px) {
    .side-tabs {
        overflow-x: auto;
        gap: 0;
        padding: 6px 6px 0;
        -webkit-overflow-scrolling: touch;
    }
    .side-tab { flex: 0 0 auto; padding: 8px 12px; font-size: 12.5px; }
    .side-body .subtitle-content { max-height: 34vh; }
    .video-counter { font-size: 11px; padding: 3px 8px; }
    .side-body .sub-en { font-size: 14px; }
}

/* 尊重系统减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
    .sub-word, .side-tab, .subtitle-line { transition: none; }
}
/* ===== VOXSYNC-PLAYER-LAYOUT-v1 end ===== */


/* ---------- 后台手机端导航 (自动注入) ---------- */
.admin-nav-toggle {
    display: none;
    position: fixed; top: 14px; left: 14px; z-index: 210;
    width: 42px; height: 42px;
    align-items: center; justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 20px; cursor: pointer;
    box-shadow: var(--shadow);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
}
.admin-nav-overlay {
    display: none;
    position: fixed; inset: 0; z-index: 190;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(2px);
}
.admin-nav-overlay.show { display: block; }

@media (max-width: 768px) {
    .admin-nav-toggle { display: flex; }
    .admin-sidebar { width: 78vw; max-width: 300px; box-shadow: var(--shadow-lg); }
    .admin-header { padding-left: 52px; }
    .admin-header h1 { font-size: 19px; }
    .admin-main { padding-top: 66px; }
}


/* ---------- 后台表格响应式 (自动注入) ---------- */
.data-table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.data-table { min-width: 640px; }
.admin-main > * { max-width: 100%; }
.stat-card, .dashboard-card, .admin-card {
    min-width: 0;
    overflow-wrap: break-word;
}
.admin-header {
    flex-wrap: wrap;
    gap: 10px;
}
.admin-header h1 { font-size: 22px; word-break: break-all; }
.admin-nav-item { white-space: nowrap; }

@media (max-width: 600px) {
    .admin-main { padding: 14px 12px; }
    .admin-header { margin-bottom: 16px; padding-bottom: 12px; }
    .admin-header h1 { font-size: 18px; }
    .data-table { font-size: 13px; }
    .data-table th, .data-table td { padding: 8px 10px; white-space: nowrap; }
    .form-row, .filter-row { flex-direction: column; align-items: stretch !important; }
    .form-row > *, .filter-row > * { width: 100% !important; }
}
@media (max-width: 400px) {
    .admin-sidebar { width: 86vw; }
}


/* ===== VOXSYNC-HOMEPAGE-V2 首页改造 ===== */
/* --- Hero 精选区 --- */
.hero-section {
    margin: 20px 24px 4px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--grad-hero);
}
.hero-inner { display: grid; grid-template-columns: 1.35fr 1fr; }
.hero-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    background: var(--thumb);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; overflow: hidden;
}
.hero-cover img { width: 100%; height: 100%; object-fit: cover; }
.hero-play {
    position: absolute;
    width: 64px; height: 64px; margin: 2px 0 0 -2px;
    border-radius: 50%;
    background: var(--grad-main);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 30px rgba(0,0,0,.35);
    transition: transform 0.25s;
}
.hero-play svg{margin-left:2px}
.hero-cover:hover .hero-play { transform: scale(1.12); }
.hero-info { padding: 28px 28px 24px; display: flex; flex-direction: column; justify-content: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 6px; align-self: flex-start;
    padding: 5px 13px; border-radius: 99px;
    background: var(--grad-main); color: #fff;
    font-size: 12px; font-weight: 700; margin-bottom: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,.2);
}
.hero-badge svg{margin:.5px 0 0 0}
.hero-title { font-size: 24px; font-weight: 800; line-height: 1.3; margin-bottom: 10px; }
.hero-desc {
    font-size: 14px; color: var(--text-light); line-height: 1.6; margin-bottom: 14px;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.hero-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 18px; }
.hero-actions { display: flex; gap: 10px; margin-bottom: 12px; }
.btn-primary {
    padding: 11px 26px; border: none; border-radius: var(--radius);
    background: var(--primary); color: #fff;
    font-size: 15px; font-weight: 700; cursor: pointer;
    transition: filter 0.2s, transform 0.2s;
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.hero-meta { font-size: 13px; color: var(--text-light); }

/* --- 卡片增强 --- */
.thumb-duration {
    position: absolute; right: 8px; bottom: 8px;
    background: rgba(0,0,0,0.75); color: #fff;
    font-size: 12px; font-weight: 600;
    padding: 2px 7px; border-radius: 4px;
    letter-spacing: 0.3px;
}
/* 缩略图播放键（悬浮渐变圆钮） */
.v-thumb-play{
  position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
  width:52px; height:52px; margin:2px 0 0 -2px; border-radius:50%;
  background:var(--grad-main); color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 8px 24px rgba(0,0,0,.3); opacity:0; transform:translate(-50%,-50%) scale(.8);
  transition:opacity .25s,transform .25s; pointer-events:none;
}
.video-card:hover .v-thumb-play{opacity:1; transform:translate(-50%,-50%) scale(1)}
/* 会员角标 */
.v-thumb-lock{
  position:absolute; left:8px; top:8px; z-index:5;
  display:inline-flex; align-items:center; gap:4px;
  background:rgba(10,12,20,.78); color:#fff; font-size:11px; font-weight:700;
  padding:4px 9px; border-radius:99px; backdrop-filter:blur(6px);
}
.video-meta {
    display: flex; gap: 12px;
    margin-top: 8px; padding-top: 8px;
    border-top: 1px solid var(--border);
    font-size: 12px; color: var(--text-light);
}
.video-meta span { display: inline-flex; align-items: center; gap: 3px; }

/* --- 筛选计数 --- */
.filter-meta { font-size: 13px; color: var(--text-light); }
.filter-meta b { color: var(--text); font-weight: 700; }

/* --- 空状态引导 --- */
.empty-state { grid-column: 1 / -1; text-align: center; padding: 60px 20px; }
.empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.empty-sub { font-size: 14px; color: var(--text-light); }

/* --- 响应式 --- */
@media (max-width: 1200px) { .hero-title { font-size: 21px; } }
@media (max-width: 900px) {
    .hero-section { margin: 14px 14px 4px; }
    .hero-inner { grid-template-columns: 1fr; }
    .hero-info { padding: 20px; }
    .hero-title { font-size: 19px; }
}
@media (max-width: 600px) {
    .hero-section { margin: 10px 10px 4px; }
    .hero-info { padding: 16px; }
    .hero-title { font-size: 17px; }
    .hero-desc { -webkit-line-clamp: 2; }
}
@media (prefers-reduced-motion: reduce) {
    .video-card, .hero-play, .btn-primary { transition: none; }
}
/* ===== VOXSYNC-HOMEPAGE-V2 结束 ===== */

/* ==================== VoxSync 外观扩展 (VOXSYNC-APPEARANCE-V2) ==================== */
:root {
    --vs-glass-blur: 20px;
    --vs-radius: 16px;
    --vs-font-scale: 1;
    --vs-grad: linear-gradient(135deg, var(--primary), var(--primary));
}

/* 玻璃强度：0 = 完全扁平 */
:root { --glass: blur(var(--vs-glass-blur)) saturate(180%); }
html[data-vs-glass="off"] { --glass: none; }

/* 圆角（radius-lg 跟随主圆角） */
:root { --radius: var(--vs-radius); --radius-lg: calc(var(--vs-radius) + 4px); }

/* 字号基准 */
body { font-size: calc(1rem * var(--vs-font-scale)); }

/* 渐变强调：关闭时是同色渐变（视觉纯色） */
html[data-vs-grad="1"] { --vs-grad: linear-gradient(135deg, var(--primary), var(--secondary)); }
html[data-vs-grad="1"] .btn-primary,
html[data-vs-grad="1"] .btn,
html[data-vs-grad="1"] .admin-logo,
html[data-vs-grad="1"] .feature-btn.active,
html[data-vs-grad="1"] .mode-btn.active,
html[data-vs-grad="1"] .admin-nav-item.active,
html[data-vs-grad="1"] .nav-item.active,
html[data-vs-grad="1"] .subtitle-line.active,
html[data-vs-grad="1"] .vs-pv-btn { background-image: var(--vs-grad); }

/* 微动效强度 */
html[data-vs-motion="0"] * { transition-duration: 0.01s !important; animation-duration: 0.01s !important; }
html[data-vs-motion="2"] .video-card:hover,
html[data-vs-motion="2"] .card:hover,
html[data-vs-motion="2"] .btn:hover { transform: translateY(-6px) scale(1.02); }

/* 无障碍：系统开了"减少动效"则强制关闭 */
@media (prefers-reduced-motion: reduce) {
    * { transition-duration: 0.01s !important; animation-duration: 0.01s !important; }
}

/* ---------- 后台外观预览缩略图 (VOXSYNC-APPEARANCE-V2) ---------- */
.vs-pv-wrap { margin: 18px 0 4px; }
.vs-pv-title { font-size: 13px; font-weight: 700; margin: 0 0 10px; display: flex; align-items: center; gap: 8px; }
.vs-pv-title small { font-weight: 400; opacity: .6; }
.vs-pv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 820px) { .vs-pv-grid { grid-template-columns: 1fr; } }
.vs-pv-box { border: 1px solid rgba(128,128,128,.25); border-radius: 10px; overflow: hidden; }
.vs-pv-label { font-size: 11px; padding: 5px 9px; border-bottom: 1px solid rgba(128,128,128,.2); opacity: .75; font-weight: 600; }

.vs-pv-home { padding: 10px; }
.vs-pv-hero { border-radius: 8px; padding: 12px; margin-bottom: 9px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.vs-pv-hero-t { font-size: 13px; font-weight: 800; margin-bottom: 3px; }
.vs-pv-hero-d { font-size: 10px; opacity: .7; }
.vs-pv-btn { border: none; color: #fff; font-size: 10px; font-weight: 700; padding: 5px 11px; border-radius: 6px; cursor: default; white-space: nowrap; background: var(--primary); }
.vs-pv-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 7px; }
.vs-pv-card { border-radius: 7px; overflow: hidden; }
.vs-pv-thumb { aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; font-size: 15px; background-image: linear-gradient(135deg, var(--primary-light, rgba(155,124,240,.35)), var(--secondary)); }
.vs-pv-meta { padding: 5px 6px; }
.vs-pv-l1 { height: 6px; border-radius: 3px; opacity: .55; margin-bottom: 3px; }
.vs-pv-l2 { height: 5px; width: 60%; border-radius: 3px; opacity: .3; }

.vs-pv-player { display: grid; grid-template-columns: 1.35fr 1fr; }
.vs-pv-video { background: #000; aspect-ratio: 16/9; display: flex; align-items: flex-end; padding: 7px; }
.vs-pv-bar { height: 3px; border-radius: 2px; width: 100%; background: rgba(255,255,255,.22); position: relative; }
.vs-pv-bar i { position: absolute; left: 0; top: 0; bottom: 0; width: 38%; border-radius: 2px; background: var(--primary); }
.vs-pv-panel { padding: 7px; }
.vs-pv-tabs { display: flex; gap: 4px; margin-bottom: 6px; }
.vs-pv-tab { font-size: 9px; padding: 2px 6px; border-radius: 5px; opacity: .5; }
.vs-pv-tab.on { background: var(--primary); color: #fff; opacity: 1; }
.vs-pv-line { font-size: 9px; padding: 4px 5px; border-radius: 5px; margin-bottom: 3px; line-height: 1.35; }
.vs-pv-line.on { background-image: var(--vs-grad); color: #fff; }
.vs-pv-line b { display: block; opacity: .6; font-weight: 400; font-size: 8px; margin-top: 1px; }
.vs-pv-line.on b { opacity: .85; }

/* 控件行 */
.vs-ap-row { display: flex; align-items: center; gap: 10px; margin-bottom: 11px; flex-wrap: wrap; }
.vs-ap-row > label { font-size: 13px; font-weight: 600; min-width: 76px; }
.vs-ap-row input[type=range] { flex: 1; min-width: 110px; accent-color: var(--primary); }
.vs-ap-val { font-size: 12px; opacity: .65; min-width: 44px; text-align: right; font-variant-numeric: tabular-nums; }
.vs-ap-hint { font-size: 11px; opacity: .5; width: 100%; margin-top: -6px; }
.vs-presets { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.vs-preset { border: 2px solid transparent; border-radius: 9px; padding: 6px 9px; cursor: pointer; background: rgba(128,128,128,.08); display: flex; align-items: center; gap: 7px; transition: border-color .18s; }
.vs-preset:hover { border-color: rgba(128,128,128,.35); }
.vs-preset.on { border-color: var(--primary); }
.vs-preset-dots { display: flex; }
.vs-preset-dots i { width: 11px; height: 11px; border-radius: 50%; margin-right: -3px; border: 1.5px solid rgba(255,255,255,.85); }
.vs-preset-name { font-size: 12px; font-weight: 600; }
/* ==================== 外观扩展结束 ==================== */


/* ===== VOXSYNC-ADMIN-MOBILE-V1 后台手机端适配 ===== */
@media (max-width: 820px) {
    /* 统计卡片 2x2 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
    }
    .stat-card { padding: 14px !important; }
    .stat-value { font-size: 24px !important; line-height: 1.2 !important; }
    .stat-label { font-size: 12px !important; }

    /* 数据表格横向滚动 */
    .table-wrap, .table-container { overflow-x: auto !important; -webkit-overflow-scrolling: touch !important; }
    table.data-table { display: block !important; overflow-x: auto !important; white-space: nowrap !important; }
    table.data-table th, table.data-table td { padding: 8px 10px !important; font-size: 13px !important; }

    /* 弹窗改底部抽屉 */
    .modal-content, .modal > div {
        width: 100% !important;
        max-width: 100% !important;
        max-height: 88vh !important;
        overflow-y: auto !important;
        border-radius: 16px 16px 0 0 !important;
        margin: 0 !important;
        position: fixed !important;
        left: 0 !important; right: 0 !important; bottom: 0 !important;
        top: auto !important;
    }
    .modal { align-items: flex-end !important; }

    /* 点击热区 >= 44px */
    .btn, button, .admin-nav-item { min-height: 44px !important; }
    .data-table button { min-height: 32px !important; padding: 6px 10px !important; }
}

@media (max-width: 420px) {
    .stats-grid { gap: 10px !important; }
    .stat-card { padding: 12px !important; }
    .stat-value { font-size: 21px !important; }

    /* 16px 字号防 iOS 聚焦自动放大（首页筛选胶囊 .fsel 除外，保持迷你尺寸） */
    input, select:not(.fsel), textarea { font-size: 16px !important; }

    .admin-header { flex-direction: column; align-items: flex-start !important; gap: 10px; }
    .admin-header h1, .admin-header h2 { font-size: 18px !important; }
}
/* ===== /VOXSYNC-ADMIN-MOBILE-V1 ===== */


/* ===== VOXSYNC-ADMIN-NAV-FINAL 手机端导航 ===== */
.vs-nav-toggle {
    display: none;
    position: fixed;
    top: 12px; left: 12px;
    z-index: 210;
    width: 44px; height: 44px;
    padding: 10px 9px;
    border: none; border-radius: 12px;
    background: var(--primary, #9B7CF0);
    box-shadow: 0 4px 14px rgba(0,0,0,.25);
    cursor: pointer;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
}
.vs-nav-toggle .vs-nav-bar {
    display: block;
    height: 3px;
    border-radius: 2px;
    background: #fff;
    transition: transform .25s, opacity .2s;
}
.vs-nav-toggle[aria-expanded="true"] .vs-nav-bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}
.vs-nav-toggle[aria-expanded="true"] .vs-nav-bar:nth-child(2) {
    opacity: 0;
}
.vs-nav-toggle[aria-expanded="true"] .vs-nav-bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}
.vs-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 195;
    background: rgba(0,0,0,.45);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}
.vs-nav-overlay.vs-open { display: block; }

@media (max-width: 768px) {
    .vs-nav-toggle { display: flex; }

    /* 侧边栏: 默认滑出屏幕, 加 .vs-open 才回来 */
    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform .28s ease;
        z-index: 200;
        width: 260px;
        max-width: 82vw;
        box-shadow: 4px 0 24px rgba(0,0,0,.28);
    }
    .admin-sidebar.vs-open {
        transform: translateX(0);
    }
    .admin-main {
        margin-left: 0 !important;
        padding: 62px 12px 20px !important;
    }
    /* 汉堡按钮挡住的内容让开 */
    .admin-header { margin-top: 4px; }

    /* 统计卡片 2x2 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
    }
    .stat-value { font-size: 24px !important; }

    /* 表格横向滚动 */
    .table-responsive, .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    table.data-table { display: block; overflow-x: auto; white-space: nowrap; }
    table.data-table td, table.data-table th { padding: 10px 12px !important; }

    /* 弹窗: 底部抽屉 */
    .modal-content, .modal > div {
        width: 100% !important;
        max-width: 100% !important;
        max-height: 88vh !important;
        margin: 0 !important;
        border-radius: 18px 18px 0 0 !important;
        overflow-y: auto;
    }
    .modal {
        align-items: flex-end !important;
        padding: 0 !important;
    }

    /* 触控热区 */
    button, .btn, .admin-nav-item, .nav-item {
        min-height: 44px;
    }
    /* iOS 聚焦不放大（首页筛选胶囊 .fsel 除外，保持迷你尺寸） */
    input, select:not(.fsel), textarea {
        font-size: 16px !important;
        min-height: 44px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .admin-sidebar, .vs-nav-toggle .vs-nav-bar { transition: none !important; }
}
/* ===== VOXSYNC-ADMIN-NAV-FINAL END ===== */

/* ===== VOXSYNC-MOBILE-NAV-V2 手机端导航: 横向滚动标签栏 (纯 CSS, 零 JS) ===== */
@media (max-width: 768px) {
  .admin-layout { flex-direction: column !important; }

  .admin-sidebar {
    position: sticky !important;
    top: 0 !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    min-height: 0 !important;
    height: auto !important;
    margin: 0 !important;
    transform: none !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 8px 10px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    border-right: none !important;
    border-bottom: 1px solid var(--border, #e2e8f0) !important;
    background: var(--card-bg, #ffffff) !important;
    z-index: 100 !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
  }
  .admin-sidebar::-webkit-scrollbar { display: none !important; }
  .admin-sidebar.open, .admin-sidebar:not(.open) { transform: none !important; }

  .admin-logo { display: none !important; }

  .admin-nav-item {
    flex: 0 0 auto !important;
    white-space: nowrap !important;
    padding: 10px 16px !important;
    font-size: 14px !important;
    min-height: 44px !important;
    display: inline-flex !important;
    align-items: center !important;
    border-radius: 10px !important;
  }
  .admin-nav-icon { width: auto !important; }

  .admin-main {
    margin-left: 0 !important;
    padding: 14px !important;
    width: 100% !important;
    min-width: 0 !important;
  }

  /* 隐藏此前抽屉方案的按钮/遮罩残留 */
  .vs-nav-toggle, [data-vs-nav-toggle], #vsNavToggle,
  .vs-nav-overlay, [data-vs-nav-overlay], #vsNavOverlay,
  .vs-menu-toggle, #vsMenuToggle, .admin-menu-toggle,
  .hamburger, .menu-toggle, .nav-overlay, .admin-overlay {
    display: none !important;
  }

  /* 表格横向滚动 */
  .table-wrap, .table-container { overflow-x: auto !important; -webkit-overflow-scrolling: touch !important; }
  table.data-table { display: table !important; width: 100% !important; min-width: 520px !important; }
  .stats-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
  .stat-value { font-size: 24px !important; }

  /* 输入控件 >=16px 防 iOS 聚焦缩放（首页筛选胶囊 .fsel 除外，保持迷你尺寸） */
  input, select:not(.fsel), textarea { font-size: 16px !important; min-height: 44px !important; }
  button, .btn { min-height: 44px !important; }
}
/* ===== VOXSYNC-MOBILE-NAV-V2 END ===== */




/* VOXSYNC v5 消除大黑框：视频列不再被拉高 + 去自身黑底 */
.player-section { align-items: stretch; background: transparent; }
.player-section .video-col { align-self: center; height: auto; background: transparent; }



/* VOXSYNC-TS3 每句时间戳样式 */

.sub-ts-row { margin-bottom: 3px; }

.sub-ts {

    display: inline-block; font-size: 11px; font-weight: 700;

    color: var(--primary, #4f6ef7);

    background: var(--primary-light, #e8edff);

    padding: 1px 7px; border-radius: 999px;

    font-variant-numeric: tabular-nums;

}

.subtitle-line.active .sub-ts { background: var(--primary, #4f6ef7); color: #fff; }




/* ==================== VOXSYNC v6 正在播放标识 ====================

 * 纯 CSS 伪元素实现，不碰 JS 渲染逻辑

 * ============================================================== */

.subtitle-line { position: relative; }

.subtitle-line.active::after {

    content: '正在播放';

    position: absolute;

    top: 8px;

    right: 10px;

    font-size: 11px;

    font-weight: 700;

    color: var(--primary, #4f6ef7);

    background: var(--primary-light, #e8edff);

    padding: 2px 9px;

    border-radius: 999px;

    white-space: nowrap;

    pointer-events: none;

    animation: vsPulse 1.4s ease-in-out infinite;

}

@keyframes vsPulse {

    0%, 100% { opacity: 1; }

    50%      { opacity: .45; }

}

/* 盲听模式下不显示（会泄露内容） */

.subtitle-content.blind-mode .subtitle-line.active::after { display: none; }




/* ==================== VOXSYNC v7 倍速胶囊 ==================== */

.speed-toolbar {

    background: rgba(0,0,0,.55);

    backdrop-filter: blur(14px);

    border: 1px solid rgba(255,255,255,.14);

    padding: 6px 12px; gap: 6px; border-radius: 999px;

}

.speed-label { font-size: 12px; opacity: .85; }

.speed-presets { display: flex; gap: 4px; }

.speed-btn {

    border: 0; cursor: pointer;

    background: rgba(255,255,255,.14);

    color: #fff; font-size: 12px; font-weight: 600;

    padding: 5px 11px; border-radius: 999px;

    transition: background .15s, transform .12s;

}

.speed-btn:hover { background: rgba(255,255,255,.28); transform: translateY(-1px); }

.speed-btn.on { background: var(--primary, #4f6ef7); color: #fff; }




/* ==================== VOXSYNC v8 折叠式倍速（不挡视频）==================== */

.speed-toolbar {

    position: absolute; right: 16px; bottom: 56px; left: auto;

    transform: none;

    background: transparent; border: 0; padding: 0; gap: 6px;

    flex-direction: column; align-items: flex-end;

    backdrop-filter: none;

}

.sp-btn {

    border: 1px solid rgba(255,255,255,.25);

    background: rgba(0,0,0,.55);

    backdrop-filter: blur(10px);

    color: #fff; font-size: 12px; font-weight: 700;

    padding: 5px 12px; border-radius: 999px; cursor: pointer;

    min-width: 52px; text-align: center;

    transition: background .15s;

}

.sp-btn:hover { background: rgba(0,0,0,.75); }

.sp-menu {

    display: none; flex-direction: column; gap: 3px;

    background: rgba(0,0,0,.72); backdrop-filter: blur(12px);

    border: 1px solid rgba(255,255,255,.16);

    padding: 6px; border-radius: 14px; margin-bottom: 6px;

}

.sp-menu.show { display: flex; }

.sp-item {

    border: 0; background: transparent; color: #fff;

    font-size: 12px; font-weight: 600;

    padding: 6px 14px; border-radius: 9px; cursor: pointer;

    white-space: nowrap; text-align: center;

}

.sp-item:hover { background: rgba(255,255,255,.18); }

.sp-item.on { background: var(--primary, #4f6ef7); }




/* ==================== VOXSYNC v9 倍速胶囊：放进视频内 ==================== */

.speed-toolbar {

    position: absolute !important;

    right: 10px !important;

    bottom: 52px !important;

    left: auto !important;

    top: auto !important;

    transform: none !important;

    display: flex !important;

    flex-direction: column !important;

    align-items: flex-end !important;

    background: transparent !important;

    border: 0 !important;

    padding: 0 !important;

    gap: 0 !important;

    backdrop-filter: none !important;

    z-index: 20;

}

.sp-btn {

    border: 1px solid rgba(255,255,255,.28) !important;

    background: rgba(0,0,0,.55) !important;

    backdrop-filter: blur(10px);

    color: #fff; font-size: 12px; font-weight: 700;

    padding: 4px 10px; border-radius: 999px; cursor: pointer;

    min-width: 46px; text-align: center;

}

.sp-btn:hover { background: rgba(0,0,0,.75) !important; }

.sp-menu {

    position: absolute;

    bottom: 100%;

    right: 0;

    margin-bottom: 6px;

    display: none;

    flex-direction: column;

    gap: 2px;

    background: rgba(0,0,0,.75);

    backdrop-filter: blur(12px);

    border: 1px solid rgba(255,255,255,.16);

    padding: 5px; border-radius: 12px;

    max-height: 60vh; overflow-y: auto;

}

.sp-menu.show { display: flex; }

.sp-item {

    border: 0; background: transparent; color: #fff;

    font-size: 12px; font-weight: 600;

    padding: 5px 12px; border-radius: 8px; cursor: pointer;

    white-space: nowrap; text-align: center;

}

.sp-item:hover { background: rgba(255,255,255,.18); }

.sp-item.on { background: var(--primary, #4f6ef7); }




/* ==================== VOXSYNC v10 倍速胶囊改到视频内右上角 ==================== */

.speed-toolbar {

    top: 10px !important;

    right: 10px !important;

    bottom: auto !important;

    left: auto !important;

    transform: none !important;

    display: flex !important;

    flex-direction: column !important;

    align-items: flex-end !important;

    background: transparent !important;

    border: 0 !important;

    padding: 0 !important;

    backdrop-filter: none !important;

    z-index: 30;

}

.sp-btn {

    border: 1px solid rgba(255,255,255,.28) !important;

    background: rgba(0,0,0,.5) !important;

    backdrop-filter: blur(10px);

    color: #fff; font-size: 12px; font-weight: 700;

    padding: 4px 10px; border-radius: 999px; cursor: pointer;

    min-width: 46px; text-align: center;

}

.sp-btn:hover { background: rgba(0,0,0,.72) !important; }

/* 菜单改为向下展开（因为按钮在顶部） */

.sp-menu {

    position: absolute;

    top: 100%;

    bottom: auto;

    right: 0;

    margin-top: 6px;

    margin-bottom: 0;

    display: none;

    flex-direction: column;

    gap: 2px;

    background: rgba(0,0,0,.75);

    backdrop-filter: blur(12px);

    border: 1px solid rgba(255,255,255,.16);

    padding: 5px; border-radius: 12px;

    max-height: 60vh; overflow-y: auto;

}

.sp-menu.show { display: flex; }

.sp-item {

    border: 0; background: transparent; color: #fff;

    font-size: 12px; font-weight: 600;

    padding: 5px 12px; border-radius: 8px; cursor: pointer;

    white-space: nowrap; text-align: center;

}

.sp-item:hover { background: rgba(255,255,255,.18); }

.sp-item.on { background: var(--primary, #4f6ef7); }




/* ==================== VOXSYNC v11 字幕卡片美化 ==================== */

.subtitle-line {

    padding: 11px 13px;

    margin-bottom: 8px;

    border-radius: 13px;

    background: var(--card-bg, rgba(255,255,255,.55));

    border: 1px solid var(--border, rgba(0,0,0,.06));

    box-shadow: 0 1px 4px rgba(0,0,0,.04);

    transition: transform .16s, box-shadow .16s, background .16s;

}

.subtitle-line:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(0,0,0,.07); }

.subtitle-line.active {

    background: var(--primary-light, #e8edff);

    border-color: var(--primary, #4f6ef7);

    box-shadow: 0 6px 20px rgba(0,0,0,.09);

    transform: translateY(-1px);

}

.subtitle-line.active::before {

    content: ''; position: absolute; left: 0; top: 12px; bottom: 12px;

    width: 3px; border-radius: 0 3px 3px 0;

    background: var(--primary, #4f6ef7);

}




/* ==================== VOXSYNC v12 播放页顶栏 ==================== */

.vs-topbar {

    display: flex; align-items: center; gap: 12px;

    height: 56px; padding: 0 16px;

    background: var(--card-bg, rgba(255,255,255,.85));

    backdrop-filter: var(--glass, blur(20px));

    border-bottom: 1px solid var(--border, rgba(0,0,0,.08));

    position: sticky; top: 0; z-index: 60;

}

.vs-tb-left { flex: 0 0 auto; }

.vs-tb-center { flex: 1 1 auto; min-width: 0; text-align: center; }

.vs-tb-right { flex: 0 0 auto; }

.vs-title {

    display: inline-block; max-width: 100%;

    font-size: 15px; font-weight: 700; color: var(--text, #1f2937);

    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;

    vertical-align: middle;

}

.vs-back {

    display: inline-flex; align-items: center; gap: 4px;

    padding: 7px 14px; border-radius: 20px;

    background: var(--bg, #f5f5f7);

    border: 1px solid var(--border, rgba(0,0,0,.08));

    color: var(--text, #1f2937);

    font-size: 13px; font-weight: 600; text-decoration: none;

}

.vs-back:hover { background: var(--primary-light, #e8edff); }

.vs-theme {

    display: flex; gap: 2px;

    background: var(--bg, #f5f5f7);

    border: 1px solid var(--border, rgba(0,0,0,.08));

    border-radius: 999px; padding: 3px;

}

.vs-tb-btn {

    border: 0; background: transparent; cursor: pointer;

    font-size: 14px; line-height: 1; padding: 5px 9px; border-radius: 999px;

}

.vs-tb-btn:hover { background: var(--primary-light, #e8edff); }

.vs-tb-btn.on { background: var(--primary, #4f6ef7); }

body.player-page .back-btn { display: none; }

.player-section { height: clamp(360px, calc(100vh - 70px - 56px), 1100px) !important; }

@media (max-width: 640px) {

    .vs-title { font-size: 13px; }

    .vs-tb-btn { padding: 5px 7px; font-size: 13px; }

}




/* ==================== VOXSYNC v13 顶栏精修 ==================== */

/* 返回：去掉胶囊底，只留文字+箭头 */

.vs-back {

    padding: 6px 8px !important;

    background: transparent !important;

    border: 0 !important;

    border-radius: 8px;

    color: var(--text, #1f2937);

    font-size: 14px; font-weight: 600;

}

.vs-back:hover { background: var(--bg, #f5f5f7) !important; color: var(--primary, #4f6ef7); }



/* 皮肤切换：去掉外框胶囊，三个图标等大对齐 */

.vs-theme {

    background: transparent !important;

    border: 0 !important;

    padding: 0 !important;

    gap: 2px;

    align-items: center;

}

.vs-tb-btn {

    display: inline-flex; align-items: center; justify-content: center;

    width: 30px; height: 30px; padding: 0;

    border-radius: 8px;

    color: var(--text-light, #6b7280);

    background: transparent;

    transition: background .15s, color .15s;

}

.vs-tb-btn svg { display: block; }

.vs-tb-btn:hover { background: var(--bg, #f5f5f7); color: var(--text, #1f2937); }

.vs-tb-btn.on { background: var(--primary-light, #e8edff); color: var(--primary, #4f6ef7); }




/* ==================== VOXSYNC v14 顶栏布局调整 ==================== */

.vs-tb-left {

    display: flex; align-items: center; gap: 10px;

    flex: 1 1 auto; min-width: 0;

}

.vs-sep {

    color: var(--border, rgba(0,0,0,.18));

    font-size: 15px; font-weight: 300; user-select: none;

    flex: 0 0 auto;

}

.vs-tb-left .vs-title {

    max-width: 46vw;

    font-size: 14px; font-weight: 600;

    color: var(--text, #1f2937);

    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;

}

.vs-tb-center {

    flex: 0 0 auto; text-align: center; padding: 0 12px;

}

.vs-logo {

    font-size: 18px; font-weight: 800; letter-spacing: .3px;

    color: var(--primary, #4f6ef7);

    text-decoration: none; white-space: nowrap;

}

.vs-tb-right { flex: 1 1 auto; display: flex; justify-content: flex-end; }

@media (max-width: 900px) {

    .vs-tb-center { display: none; }

    .vs-tb-left .vs-title { max-width: 40vw; font-size: 13px; }

}




/* ==================== VOXSYNC v15 返回按钮（规范版）==================== */

.vs-back {

    display: inline-flex; align-items: center; gap: 2px;

    padding: 6px 10px 6px 6px !important;

    border-radius: 8px;

    color: var(--text, #1f2937) !important;

    font-size: 14px; font-weight: 500;

    text-decoration: none;

    transition: background .15s, color .15s;

}

.vs-back-ico {

    display: block; flex: 0 0 auto;

    transition: transform .15s;

}

.vs-back:hover { background: var(--bg, #f5f5f7) !important; color: var(--primary, #4f6ef7) !important; }

.vs-back:hover .vs-back-ico { transform: translateX(-2px); }

.vs-back:active { opacity: .7; }




/* ==================== VOXSYNC v17 容器=视频实际大小，零黑边 ==================== */

.player-section { align-items: stretch !important; }

.player-section .video-col {

    align-self: center !important;

    height: auto !important;

    width: auto !important;

    background: transparent !important;

    display: flex !important;

    align-items: center !important;

    justify-content: center !important;

}

.player-section .video-container {

    height: auto !important;

    width: auto !important;

    max-width: 100% !important;

    display: block !important;

    line-height: 0 !important;

}

#videoPlayer {

    display: block !important;

    width: 100% !important;

    height: auto !important;

    max-height: calc(100vh - 56px) !important;

    object-fit: contain !important;

}




/* VOXSYNC v18 修正：右栏恢复满高，页头不被压扁 */

.player-section > *:not(.video-col) {

    align-self: stretch !important;

    height: 100% !important;

    min-height: 0 !important;

    display: flex !important;

    flex-direction: column !important;

}

.player-section > *:not(.video-col) > * { flex: 0 0 auto; }

.subtitle-content, .side-body { flex: 1 1 auto !important; overflow-y: auto !important; }




/* ==================== VOXSYNC v19 视频靠顶栏下方对齐 ==================== */

.player-section .video-col {

    align-self: start !important;

    margin-top: 10px !important;

    margin-bottom: 0 !important;

    height: auto !important;

}

.player-section .video-container { margin-top: 0 !important; }




/* ==================== VOXSYNC v19 视频靠顶栏下方对齐 ==================== */

.player-section .video-col {

    align-self: start !important;

    margin-top: 10px !important;

    margin-bottom: 0 !important;

    height: auto !important;

}

.player-section .video-container { margin-top: 0 !important; }




/* ==================== VOXSYNC v19 视频靠顶栏下方对齐 ==================== */

.player-section .video-col {

    align-self: start !important;

    margin-top: 10px !important;

    margin-bottom: 0 !important;

    height: auto !important;

}

.player-section .video-container { margin-top: 0 !important; }




/* ==================== VOXSYNC v20 循环官方图标 + 设置弹窗 ==================== */

.subtitle-toggle.loop-btn {

    display: inline-flex; align-items: center; justify-content: center;

    width: 28px; height: 28px; padding: 0; border-radius: 8px;

}

.loop-btn svg { display: block; }

.subtitle-toggle.loop-on { color: var(--primary, #4f6ef7); background: var(--primary-light, #e8edff); }

.lp-mask {

    position: fixed; inset: 0; background: rgba(0,0,0,.45);

    display: none; align-items: center; justify-content: center; z-index: 200;

}

.lp-mask.show { display: flex; }

.lp-box {

    background: var(--card-bg, #fff); border-radius: 16px; padding: 16px;

    width: min(92vw, 320px); box-shadow: 0 20px 60px rgba(0,0,0,.25);

}

.lp-head {

    font-size: 15px; font-weight: 700; margin-bottom: 12px;

    display: flex; justify-content: space-between; align-items: center;

}

.lp-close { border: 0; background: transparent; font-size: 20px; cursor: pointer; color: var(--text-light, #6b7280); }

.lp-group { margin-bottom: 14px; }

.lp-label { font-size: 12px; color: var(--text-light, #6b7280); margin-bottom: 6px; }

.lp-opts { display: flex; flex-wrap: wrap; gap: 6px; }

.lp-btn {

    border: 1px solid var(--border, rgba(0,0,0,.1)); background: transparent;

    color: var(--text, #1f2937); font-size: 12px; padding: 5px 11px;

    border-radius: 999px; cursor: pointer;

}

.lp-btn:hover { border-color: var(--primary, #4f6ef7); }

.lp-btn.on { background: var(--primary, #4f6ef7); color: #fff; border-color: var(--primary, #4f6ef7); }




/* ==================== VOXSYNC v25 词卡面板 ==================== */

.wc-mask { position: fixed; inset: 0; background: rgba(0,0,0,.5);

  display: none; align-items: center; justify-content: center; z-index: 300; }

.wc-mask.show { display: flex; }

.wc-box { background: var(--card-bg,#fff); border-radius: 18px; width: min(92vw,380px);

  padding: 16px; box-shadow: 0 24px 70px rgba(0,0,0,.3); }

.wc-head { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }

.wc-title { font-size: 16px; font-weight: 800; }

.wc-close { margin-left: auto; border: 0; background: transparent;

  font-size: 22px; cursor: pointer; color: var(--text-light,#6b7280); }

.wc-tabs { display: flex; gap: 6px; margin-bottom: 12px; }

.wc-tab { flex: 1; border: 1px solid var(--border,rgba(0,0,0,.1)); background: transparent;

  color: var(--text,#1f2937); font-size: 12px; padding: 6px 0; border-radius: 8px; cursor: pointer; }

.wc-tab.on { background: var(--primary,#4f6ef7); color: #fff; border-color: var(--primary,#4f6ef7); }

.wc-card { perspective: 1000px; height: 170px; cursor: pointer; }

.wc-face, .wc-back { position: absolute; width: 100%; height: 170px;

  backface-visibility: hidden; transition: transform .45s;

  border-radius: 14px; border: 1px solid var(--border,rgba(0,0,0,.08));

  background: var(--bg,#f5f5f7); padding: 16px; box-sizing: border-box;

  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }

.wc-back { transform: rotateY(180deg); }

.wc-card.flip .wc-face { transform: rotateY(180deg); }

.wc-card.flip .wc-back { transform: rotateY(360deg); }

.wc-word { font-size: 26px; font-weight: 800; color: var(--text,#1f2937); }

.wc-phon { font-size: 13px; color: var(--text-light,#6b7280); margin-top: 6px; }

.wc-mean { font-size: 16px; font-weight: 700; color: var(--primary,#4f6ef7); }

.wc-ex { font-size: 13px; margin-top: 8px; line-height: 1.5; }

.wc-exzh { font-size: 12px; color: var(--text-light,#6b7280); margin-top: 4px; }

.wc-tip { text-align: center; font-size: 11px; color: var(--text-light,#6b7280); margin: 8px 0 12px; }

.wc-acts { display: flex; gap: 8px; }

.wc-act { flex: 1; border: 0; padding: 9px 0; border-radius: 10px;

  font-size: 13px; font-weight: 700; cursor: pointer; color: #fff; }

.wc-act.bad { background: #ef4444; }

.wc-act.mid { background: #f59e0b; }

.wc-act.ok  { background: #10b981; }

.wc-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }

#wcProg { font-size: 12px; color: var(--text-light,#6b7280); }

.wc-gen { border: 1px solid var(--primary,#4f6ef7); background: transparent;

  color: var(--primary,#4f6ef7); font-size: 12px; font-weight: 700;

  padding: 6px 12px; border-radius: 8px; cursor: pointer; }


/* VS_UI_POLISH */
.search-box{position:relative!important}
.vs-search-btn{position:absolute;right:5px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;border:0;display:flex;align-items:center;justify-content:center;background:var(--grad-main);color:#fff;cursor:pointer;transition:transform .18s,box-shadow .18s;flex-shrink:0}
.vs-search-btn:hover{transform:translateY(-50%) scale(1.08);box-shadow:0 4px 12px color-mix(in srgb,var(--primary) 35%,transparent)}
.vs-search-btn:active{transform:translateY(-50%) scale(.94)}
#themeToggle{width:38px!important;height:38px!important;border-radius:50%!important;display:flex!important;align-items:center!important;justify-content:center!important;padding:0!important;font-size:0!important;line-height:0!important;transition:transform .2s,background .2s}
#themeToggle:hover{transform:scale(1.08)}
.vs-theme-inner{display:flex;align-items:center;justify-content:center;width:19px;height:19px}

/* VS_SEARCH_FOLD 折叠式搜索框 */
.search-box{display:flex!important;align-items:center!important;gap:6px!important}
.search-box > input{width:0!important;min-width:0!important;padding-left:0!important;padding-right:0!important;border:0!important;background:transparent!important;opacity:0!important;pointer-events:none!important;transition:width .28s ease,opacity .2s ease,padding .28s ease,border-color .2s ease!important}
.search-box.vs-open > input{width:min(190px,44vw)!important;opacity:1!important;pointer-events:auto!important;padding:8px 14px!important;border:1px solid var(--border)!important;border-radius:20px!important;background:var(--card-bg)!important;color:var(--text)!important;outline:none;box-shadow:0 2px 10px rgba(0,0,0,.08)}
.search-box.vs-open > input::placeholder{color:var(--text-mute)}
.search-box.vs-open > input:focus{border-color:var(--primary)!important;box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 16%,transparent)}
.vs-search-btn{width:34px!important;height:34px!important;border-radius:50%!important;border:0!important;display:flex!important;align-items:center!important;justify-content:center!important;background:var(--grad-main)!important;color:#fff!important;cursor:pointer!important;flex-shrink:0!important;padding:0!important;transition:transform .18s,box-shadow .18s!important}
.vs-search-btn:hover{transform:scale(1.08);box-shadow:0 4px 12px color-mix(in srgb,var(--primary) 35%,transparent)}
.vs-search-btn:active{transform:scale(.93)}

/* VS_LOGO_CENTER 手机端 logo 绝对居中 */
@media (max-width: 900px){
  .topbar-center{position:absolute!important;left:50%!important;transform:translateX(-50%)!important;pointer-events:none!important}
  .topbar-center .logo{pointer-events:auto!important;white-space:nowrap;font-size:19px!important;gap:5px!important}
  .topbar-center .logo .logo-mark{width:19px;height:19px}
}

/* VS_ROUND_BTN 主题按钮强制正圆 */
#themeToggle{
  width:38px!important;
  height:38px!important;
  min-width:38px!important;
  min-height:38px!important;
  max-width:38px!important;
  max-height:38px!important;
  aspect-ratio:1/1!important;
  flex:0 0 38px!important;
  box-sizing:border-box!important;
  padding:0!important;
  border-radius:50%!important;
  display:flex!important;
  align-items:center!important;
  justify-content:center!important;
  overflow:hidden!important;
  line-height:1!important;
  font-size:0!important;
  text-align:center!important;
}
#themeToggle *,.vs-theme-inner{
  display:flex!important;
  align-items:center!important;
  justify-content:center!important;
  width:20px!important;
  height:20px!important;
  max-width:20px!important;
  max-height:20px!important;
  margin:0!important;
  padding:0!important;
  line-height:0!important;
  font-size:0!important;
  flex:0 0 auto!important;
}
#themeToggle svg{display:block!important;width:20px!important;height:20px!important;max-width:20px!important;max-height:20px!important}

/* VS_THEME_VISIBLE 皮肤切换按钮增强可见度：浅紫底+紫描边+紫图标（原 card-bg 幽灵按钮太隐形） */
#themeToggle{
  background:color-mix(in srgb,var(--primary) 10%,var(--card-bg))!important;
  border:1.5px solid color-mix(in srgb,var(--primary) 32%,transparent)!important;
  color:var(--primary)!important;
  box-shadow:0 2px 10px color-mix(in srgb,var(--primary) 16%,transparent)!important;
}
#themeToggle:hover{
  background:color-mix(in srgb,var(--primary) 18%,var(--card-bg))!important;
  box-shadow:0 3px 14px color-mix(in srgb,var(--primary) 26%,transparent)!important;
}

/* VS_ROUND_BTN 铃铛按钮强制正圆（手机端 button{min-height:44px!important} 会把 38px 铃铛压成 38x44 椭圆） */
#bellBtn{
  width:38px!important;
  height:38px!important;
  min-width:38px!important;
  min-height:38px!important;
  max-width:38px!important;
  max-height:38px!important;
  aspect-ratio:1/1!important;
  flex:0 0 38px!important;
  box-sizing:border-box!important;
  padding:0!important;
  border-radius:50%!important;
  display:flex!important;
  align-items:center!important;
  justify-content:center!important;
  overflow:hidden!important;
  line-height:1!important;
}
#bellBtn svg{display:block!important;width:18px!important;height:18px!important;max-width:18px!important;max-height:18px!important;flex:0 0 auto!important}

/* VS_ROUND_SEARCH 搜索按钮强制正圆 */
.vs-search-btn{
  width:34px!important;height:34px!important;
  min-width:34px!important;min-height:34px!important;
  max-width:34px!important;max-height:34px!important;
  aspect-ratio:1/1!important;flex:0 0 34px!important;
  box-sizing:border-box!important;padding:0!important;margin:0!important;
  border-radius:50%!important;overflow:hidden!important;
  display:flex!important;align-items:center!important;justify-content:center!important;
}
.vs-search-btn svg{display:block!important;width:17px!important;height:17px!important;max-width:17px!important;max-height:17px!important}
/* ==================== VOXSYNC-POLISH-V1 全站质感精修 ==================== */
/* 1. 阴影三级体系（双层阴影，更立体） */
:root{
  --shadow:0 1px 2px rgba(23,32,48,.04),0 10px 30px rgba(23,32,48,.07);
  --shadow-lg:0 2px 6px rgba(23,32,48,.06),0 24px 56px rgba(23,32,48,.13);
  --shadow-xl:0 6px 16px rgba(23,32,48,.08),0 32px 80px rgba(23,32,48,.18);
}
body[data-skin="purple"],body[data-skin="green"],
html[data-theme="dark"] body,body[data-theme="dark"]{
  --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.45);
  --shadow-lg:0 2px 8px rgba(0,0,0,.45),0 26px 60px rgba(0,0,0,.55);
  --shadow-xl:0 6px 18px rgba(0,0,0,.5),0 34px 84px rgba(0,0,0,.6);
}

/* 2. 统一按钮体系（最终定义，收敛前文两套 .btn-primary） */
.btn-primary{
  padding:11px 26px;border:none;border-radius:12px;
  background:var(--grad-main);color:#fff;
  font-size:15px;font-weight:700;letter-spacing:.2px;
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  box-shadow:0 2px 6px rgba(0,0,0,.10),0 8px 22px color-mix(in srgb,var(--primary) 30%,transparent);
  transition:transform .18s cubic-bezier(.34,1.56,.64,1),box-shadow .18s,filter .18s;
}
.btn-primary:hover{
  transform:translateY(-1px);filter:saturate(1.06);
  box-shadow:0 4px 10px rgba(0,0,0,.10),0 14px 30px color-mix(in srgb,var(--primary) 38%,transparent);
}
.btn-primary:active{transform:translateY(0) scale(.97);box-shadow:0 1px 4px rgba(0,0,0,.12)}

/* 3. 卡片微交互：浮起克制 + 封面呼吸缩放 */
.video-card{transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s}
.video-card:hover{transform:translateY(-3px)}
.video-thumbnail{overflow:hidden}
.video-thumbnail img{transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.video-card:hover .video-thumbnail img{transform:scale(1.045)}
.hero-cover{overflow:hidden}
.hero-cover img{transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.hero-cover:hover img{transform:scale(1.02)}

/* 4. 角标毛玻璃化（时长/会员锁） */
.thumb-duration,.v-thumb-lock{
  background:rgba(15,18,28,.55)!important;
  -webkit-backdrop-filter:blur(10px) saturate(160%);
  backdrop-filter:blur(10px) saturate(160%);
  border:1px solid rgba(255,255,255,.16);
  border-radius:8px!important;
  font-variant-numeric:tabular-nums;
}
.v-thumb-play{box-shadow:0 4px 14px rgba(0,0,0,.28)}

/* 5. 排印精修：数字等宽、标题收紧 */
body{font-variant-numeric:tabular-nums}
.video-title,.hero-title{letter-spacing:-.2px}

/* 6. 顶栏与搜索框质感 */
.topbar{box-shadow:0 1px 0 var(--border),0 10px 30px -22px rgba(23,32,48,.35)}
html[data-theme="dark"] .topbar,body[data-theme="dark"] .topbar{box-shadow:0 1px 0 var(--border),0 10px 30px -20px rgba(0,0,0,.6)}
.search-box input{transition:border-color .2s,box-shadow .2s,width .25s}
.search-box input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 16%,transparent)}

/* 7. 全局键盘焦点环 */
:focus-visible{outline:2px solid color-mix(in srgb,var(--primary) 65%,transparent);outline-offset:2px}

/* 8. 空状态精修：emoji 落座圆角底座 */
.empty-state{padding:70px 20px}
.empty-icon{width:84px;height:84px;line-height:84px;margin:0 auto 14px;border-radius:28px;background:var(--soft);font-size:40px}

/* 9. 骨架屏（数据返回前的占位） */
.vs-skel{border-radius:var(--radius-lg);overflow:hidden;background:var(--card-bg);box-shadow:var(--shadow)}
.vs-skel .sk{position:relative;overflow:hidden;background:var(--soft)}
.vs-skel .sk::after{content:"";position:absolute;inset:0;transform:translateX(-100%);
  background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--text) 7%,transparent),transparent);
  animation:vssk 1.3s infinite}
@keyframes vssk{100%{transform:translateX(100%)}}
@media (prefers-reduced-motion:reduce){.vs-skel .sk::after{animation:none}}

/* ==================== VOXSYNC-POLISH-V1.1 顶栏三条杠菜单按钮 ==================== */
.hamburger-btn{
  width:40px;height:40px;border:none;border-radius:12px;background:transparent;
  color:var(--text);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;padding:0;flex:0 0 auto;
  transition:background .18s,transform .18s;
}
.hamburger-btn:hover{background:var(--soft)}
.hamburger-btn:active{transform:scale(.92)}
.hamburger-btn svg{display:block}

/* ============================================================
   VOXSYNC-LAYOUT-V3 电脑端左侧栏布局（参考 shadowtalk.top）
   电脑(≥1024px)：顶栏导航 + 固定左侧栏(筛选/统计/签到) + 主内容3列卡片
   手机(<1024px)：保持原单列 + chips 筛选；统计/签到卡隐藏(用菜单入口)
   ============================================================ */

/* ---- 顶栏用户入口（电脑显示） + 侧栏专属块（默认隐藏，电脑显示） ---- */
.topnav-links { display: none; }
.top-user { display: none; }
.side-nav { display: none; }

/* VS_MEFIX 抽屉用户卡/退出小钮已删（用户信息与退出在「我的」页） */

/* 手机端顶栏退出钮强制隐藏（退出走「我的」页） */
@media (max-width: 1023px) {
    .top-logout { display: none !important; }
}
/* 抽屉内学习概览卡（手机端）：三行卡=图标+说明+数字，整行可点筛选（与电脑端同款联动） */
.side-menu .vs-learnbar { padding: 0; }
.side-menu .vs-learnbar .side-h { margin: 2px 0 8px; }

/* 抽屉：功能宫格（2 列紧凑，缩短抽屉长度） */
.side-menu .menu-section {
    flex: 0 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 10px;
    align-content: start;
}
.side-menu .menu-item {
    flex-direction: column;
    justify-content: center;
    gap: 7px;
    padding: 12px 6px 10px;
    border-radius: 14px;
    background: var(--soft);
}
.side-menu .menu-item:hover { background: color-mix(in srgb, var(--primary) 10%, var(--soft)); }
.side-menu .menu-icon {
    width: 38px; height: 38px;
    border-radius: 12px;
    background: var(--card-bg);
    box-shadow: inset 0 0 0 1px var(--border);
    font-size: 19px;
}
.side-menu .mi-t { font-size: 12.5px; font-weight: 600; color: var(--text); }

/* ---- 左侧栏：学习概览卡 ---- */
.side-block { margin-top: 6px; }
.side-h {
    font-size: 12px; font-weight: 700; color: var(--text-mute);
    letter-spacing: .05em; margin: 8px 0 8px;
}
/* 旧三格统计样式(.stats-row/.stat-cell)已由 .ov-list/.ov-cell 取代 */

/* ---- VS_CKMOVE 侧栏签到卡已迁「我的」页(me.html)：仅保留签到弹窗样式 ---- */
/* ---- 签到弹窗 ---- */
#vsCkMask{position:fixed;inset:0;background:rgba(20,20,35,.45);z-index:1200;display:none;align-items:flex-end;justify-content:center}
#vsCkMask.on{display:flex}
@media(min-width:769px){#vsCkMask{align-items:center}}
#vsCkBox{width:100%;max-width:420px;background:var(--card-bg);border-radius:20px 20px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom));max-height:86vh;overflow-y:auto;box-shadow:0 -8px 30px rgba(20,20,50,.18)}
@media(min-width:769px){#vsCkBox{border-radius:18px;padding:20px 20px 18px;max-height:80vh}}
.vsck-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.vsck-tt{font-size:16.5px;font-weight:700;color:var(--text)}
.vsck-x{width:32px;height:32px;flex:0 0 32px;border-radius:50%;border:0;background:var(--soft);color:var(--text-mute);display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0}
.vsck-hero{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:14px;background:color-mix(in srgb,var(--primary) 8%,transparent);margin-bottom:12px}
.vsck-fire{width:44px;height:44px;flex:0 0 44px;border-radius:13px;background:var(--grad-main,var(--primary));color:#fff;display:flex;align-items:center;justify-content:center}
.vsck-num{display:flex;align-items:baseline;gap:5px;flex:1}
.vsck-num b{font-size:26px;font-weight:800;color:var(--text);line-height:1}
.vsck-num span{font-size:12px;color:var(--text-light)}
.vsck-total{font-size:11.5px;color:var(--text-mute);background:var(--soft);padding:4px 10px;border-radius:999px;font-weight:600}
.vsck-month{font-size:12.5px;font-weight:700;color:var(--text-light);margin:0 2px 8px}
.vsck-cal .cal-week{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:4px}
.vsck-cal .cal-week span{text-align:center;font-size:11px;color:var(--text-mute);font-weight:600}
.vsck-cal .cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.cal-d{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:9px;font-size:12.5px;font-weight:600;color:var(--text);background:var(--soft)}
.cal-d.on{background:var(--grad-main,var(--primary));color:#fff;box-shadow:0 2px 8px color-mix(in srgb,var(--primary) 30%,transparent)}
.cal-d.today{box-shadow:inset 0 0 0 2px var(--primary)}
.cal-d.today.on{box-shadow:none;outline:2px solid var(--card-bg);outline-offset:-4px}
.cal-d.fut{opacity:.4;font-weight:500}
.cal-d.empty{background:transparent}
.vsck-btn{width:100%;margin-top:14px;border:0;background:var(--grad-main,var(--primary));color:#fff;font-size:15px;font-weight:700;padding:13px 0;border-radius:13px;cursor:pointer;box-shadow:0 4px 14px color-mix(in srgb,var(--primary) 35%,transparent);transition:transform .15s}
.vsck-btn:hover:not(:disabled){transform:translateY(-1px)}
.vsck-btn:disabled, .vsck-btn.done{background:var(--soft);color:var(--text-mute);box-shadow:none;cursor:default}
.vsck-tip{text-align:center;font-size:11.5px;color:var(--text-mute);margin-top:9px}

/* ---- 手机端：侧栏专属块隐藏（导航走抽屉/底部导航，筛选走顶部Tab） ---- */
@media (max-width: 1023px) {
    .side-stats, .side-nav { display: none !important; }
}

/* ---- 电脑端：左侧栏主布局 ---- */
@media (min-width: 1024px) {
    /* 顶栏：定高防重叠（左侧栏 top 与之严格对齐）；Logo 左上角，右侧仅搜索/主题/登录入口 */
    .topbar { height: 64px; padding: 0 24px; }
    .topbar-left { display: none; }                  /* 桌面无汉堡：功能全部收进左侧栏 */
    .topbar-center { order: -1; }                    /* Logo 移到左上角 */
    .topbar-right { margin-left: auto; }
    .topbar-center .logo { font-size: 22px; }
    /* 右上角：搜索框在最左可收缩，快捷导航固定不缩 —— 结构性防重叠 */
    .topnav-links { display: flex; align-items: center; gap: 2px; order: 1; flex: 0 0 auto; }
    /* VS_TOPUSER 登录/用户胶囊排到导航之后 = 右上角最边缘 */
    .top-user, .top-login { order: 2; }
    .topnav-links a {
        padding: 7px 11px;
        border-radius: 10px;
        font-size: 13.5px;
        font-weight: 600;
        color: var(--text-light);
        text-decoration: none;
        white-space: nowrap;
        transition: background .18s, color .18s;
    }
    .topnav-links a:hover { background: var(--soft); color: var(--text); }
    .search-box { order: 0; flex: 1 1 auto; min-width: 0; max-width: 170px; }
    .search-box input { width: 100%; min-width: 0; }
    .theme-toggle { order: 0; }   /* VS_TOPMERGE：与搜索/铃铛并排成图标簇 */

    /* 电脑端抽屉已废用（功能全在左侧栏）：整体隐藏兜底 */
    .side-menu, .menu-overlay { display: none !important; }
    /* 用户名+退出登录合并为一个胶囊（VS_TOPMERGE）：登录态=[姓名|退出图标] 同壳两段；未登录仅"登录"胶囊 */
    .top-userwrap { order: 4; display: inline-flex; align-items: center; }
    .top-user {
        display: inline-flex; align-items: center; gap: 6px;
        max-width: 120px;
        padding: 8px 16px;
        border-radius: 999px;
        background: var(--grad-main, var(--primary));
        color: #fff;
        font-size: 13.5px; font-weight: 700;
        text-decoration: none;
        white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
        box-shadow: 0 3px 10px color-mix(in srgb, var(--primary) 30%, transparent);
    }
    .top-user:hover { transform: translateY(-1px); box-shadow: 0 5px 14px color-mix(in srgb, var(--primary) 38%, transparent); }
    .top-user.authed { background: var(--soft); color: var(--text); box-shadow: none; }
    .top-user.authed:hover { background: color-mix(in srgb, var(--primary) 12%, var(--soft)); color: var(--primary); transform: none; }
    .top-userwrap.merged .top-user { height: 36px; padding: 0 12px 0 16px; border-radius: 999px 0 0 999px; }
    .top-userwrap.merged .top-user:hover { transform: none; }
    /* 退出钮：胶囊右半段（与用户名同壳，中间分隔线） */
    .top-logout {
        flex: 0 0 36px; width: 36px; height: 36px;
        display: inline-flex; align-items: center; justify-content: center;
        border: 1px solid var(--border);
        border-radius: 0 999px 999px 0;
        background: var(--card-bg); color: var(--text-mute);
        cursor: pointer; padding: 0;
        transition: background .18s, color .18s;
    }
    .top-logout:hover { background: #FEE2E2; color: #B91C1C; }

    /* 侧栏纵向排布：①学习概览(兼筛选) ②筛选条件卡 ③计数沉底（功能入口/签到已迁「我的」页） */
    .side-stats { order: 1; }
    .filter-bar #vsSideFilters { order: 2; display: block; }   /* slot 本体不参与布局，由内部 .vs-filters-c 排布 */
    .filter-meta { order: 9; }

    /* 筛选栏 → 固定左侧栏（可独立滚动） */
    .filter-bar {
        position: fixed;
        top: 64px; left: 0; bottom: 0;
        width: 280px;
        flex-direction: column;
        align-items: stretch;
        flex-wrap: nowrap;
        gap: 10px;
        padding: 16px 14px;
        overflow-y: auto;
        border-bottom: none;
        border-right: 1px solid var(--border);
        z-index: 40;
    }
    .filter-bar .filter-meta {
        margin-top: auto;
        padding-top: 12px;
        border-top: 1px solid var(--border);
        font-size: 12.5px;
        color: var(--text-mute);
    }
    .side-block.side-stats { display: flex; flex-direction: column; }

    /* 主内容右移，参考站无 Hero：电脑端隐藏；学习Tab已收进侧栏 */
    .hero-section { display: none !important; }
    #rvHomeBox { margin-left: 280px; padding: 0 24px; }
    .vs-learnbar { display: none !important; }
    .video-grid {
        margin-left: 280px;
        grid-template-columns: repeat(4, 1fr);   /* VS_DESK4K 电脑端一排 4 个视频 */
        gap: 18px;
        padding: 12px 24px 48px;
    }

    /* 电脑端隐藏底部导航（仅首页：导航已上移顶栏；其他页面 bottom-nav 保留） */
    .vs-home .bottom-nav { display: none; }
    body.vs-home { padding-bottom: 0; }
    .back-to-top { bottom: 28px; }
}

/* ============================================================
   VOXSYNC-MOBILE-POLISH 手机端精装（<1024 平板沿用大屏质感，<768 手机加强）
   ============================================================ */
@media (max-width: 1023px) {
    /* 顶栏：毛玻璃 + 收敛 */
    .topbar {
        padding: 10px 14px;
        box-shadow: 0 1px 0 var(--border);
    }
    .topbar-center .logo { font-size: 20px; }
    .topbar-center .logo .logo-mark { width: 20px; height: 20px; }

    /* 视频卡片：大圆角 + 柔影 + 渐变压底提升封面质感 */
    .video-grid { padding: 12px; gap: 12px; }
    .video-card {
        border-radius: 18px;
        box-shadow: 0 4px 18px rgba(25,28,50,.07), 0 1px 3px rgba(25,28,50,.05);
        border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
    }
    .video-thumbnail { border-radius: 0; }
    .video-thumbnail::after {
        content: ""; position: absolute; inset: auto 0 0 0; height: 46%;
        background: linear-gradient(180deg, transparent, rgba(10,12,30,.42));
        pointer-events: none;
    }
    .video-creator { top: 10px; left: 10px; background: rgba(15,18,38,.42); }
    .video-info { padding: 12px 14px 14px; }
    .video-title { font-size: 15.5px; letter-spacing: .01em; }
    .video-tags .tag { background: var(--soft); border-color: transparent; border-radius: 8px; padding: 2.5px 9px; }

    /* 底部导航：悬浮胶囊条 + active 药丸（body 前缀压过 index 内联样式） */
    body .bottom-nav {
        left: 10px; right: 10px; bottom: calc(8px + env(safe-area-inset-bottom));
        border-radius: 18px;
        border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
        box-shadow: 0 8px 28px rgba(20,24,50,.16);
        padding: 6px 4px;
        overflow: hidden;
    }
    body .bottom-nav .nav-item {
        flex: 1; flex-direction: column; gap: 2px;
        padding: 7px 0 5px; margin: 0 4px;
        border-radius: 13px;
        font-size: 11px;
        transition: background .2s, color .2s;
    }
    body .bottom-nav .nav-item.active {
        background: color-mix(in srgb, var(--primary) 11%, transparent);
        color: var(--primary);
    }
    body .bottom-nav .nav-icon { display: flex; align-items: center; justify-content: center; }
    body.vs-home { padding-bottom: calc(78px + env(safe-area-inset-bottom)); }

    /* 抽屉：项圆角（用户卡已删，用户信息在「我的」页） */
    .side-menu { padding: 16px 14px; box-shadow: 8px 0 40px rgba(15,18,40,.18); }
    .menu-item { border-radius: 13px; padding: 13px 14px; }
    .menu-item:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); }
    .menu-icon { display: flex; align-items: center; justify-content: center; width: 34px; }
    .menu-icon svg { width: 21px; height: 21px; color: var(--primary); }
    .menu-item-text span { font-size: 14.5px; }
}

@media (max-width: 768px) {
    .video-grid { grid-template-columns: 1fr !important; display: block !important; }
    .video-card { margin-bottom: 12px; }
    .hero-inner { border-radius: 18px; }
    .hero-info { padding: 14px 16px 16px; }
    .hero-title { font-size: 17px; }
}