/* ==========================================================================
   红桃视频 HONGTAO VIDEO — 全站样式
   暗色电影质感 + 红桃品牌色，桌面优先，移动端自适应
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --bg:          #0b0910;
  --bg-soft:     #120f19;
  --bg-elev:     #171320;
  --surface:     rgba(255, 255, 255, .045);
  --surface-2:   rgba(255, 255, 255, .075);
  --line:        rgba(255, 255, 255, .09);
  --line-strong: rgba(255, 255, 255, .16);

  --brand:       #ff2d55;
  --brand-soft:  #ff6b81;
  --brand-deep:  #c2143c;
  --gold:        #ffc46b;

  --txt:         #f5f3f8;
  --txt-2:       #b9b3c4;
  --txt-3:       #7d7688;

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;

  --shadow-1: 0 4px 16px rgba(0, 0, 0, .35);
  --shadow-2: 0 18px 48px rgba(0, 0, 0, .55);
  --glow:     0 0 0 1px rgba(255, 45, 85, .35), 0 12px 40px rgba(255, 45, 85, .28);

  --maxw: 1280px;
  --nav-h: 72px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
          "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- 2. 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--txt);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 全站氛围光 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(900px 520px at 12% -8%,  rgba(255, 45, 85, .16), transparent 62%),
    radial-gradient(760px 480px at 92% 4%,   rgba(126, 68, 255, .13), transparent 60%),
    radial-gradient(1000px 600px at 50% 108%, rgba(255, 196, 107, .06), transparent 65%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }

::selection { background: rgba(255, 45, 85, .35); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #0b0910; }
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, .14);
  border-radius: 10px;
  border: 2px solid #0b0910;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 45, 85, .5); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- 3. 顶部公告条 ---------- */
.topbar {
  background: linear-gradient(90deg, var(--brand-deep), #6d1a4a 45%, #2a1a4d);
  font-size: 13px;
  color: #ffe9ef;
  position: relative;
  z-index: 60;
}
.topbar .wrap { display: flex; align-items: center; gap: 14px; height: 38px; }
.topbar .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 0 rgba(255, 255, 255, .8);
  animation: pulse 2s infinite;
  flex: none;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 8px rgba(255, 255, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}
.topbar .marquee { overflow: hidden; white-space: nowrap; flex: 1; }
.topbar .marquee span { display: inline-block; animation: slide 26s linear infinite; padding-left: 100%; }
@keyframes slide { to { transform: translateX(-100%); } }
.topbar .top-links { display: flex; gap: 16px; flex: none; opacity: .9; }
.topbar .top-links a:hover { color: #fff; text-decoration: underline; }

/* ---------- 4. 头部导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  background: rgba(11, 9, 16, .78);
  border-bottom: 1px solid var(--line);
  transition: background .3s, box-shadow .3s;
}
.header.scrolled { background: rgba(11, 9, 16, .94); box-shadow: var(--shadow-1); }
.header .wrap { height: var(--nav-h); display: flex; align-items: center; gap: 28px; }

/* logo */
.logo { display: flex; align-items: center; gap: 11px; flex: none; }
.logo-mark {
  width: 40px; height: 40px; flex: none;
  border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), #7d2bff);
  box-shadow: 0 6px 20px rgba(255, 45, 85, .38);
}
.logo-mark svg { width: 22px; height: 22px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text b {
  font-size: 19px; letter-spacing: .5px; font-weight: 800;
  background: linear-gradient(90deg, #fff, #ffd0da 60%, var(--brand-soft));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.logo-text i {
  font-style: normal; font-size: 9.5px; letter-spacing: 2.6px;
  color: var(--txt-3); font-weight: 600; text-transform: uppercase;
}

/* 主导航 */
.nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav > li > a {
  display: block; padding: 9px 15px; border-radius: 10px;
  font-size: 14.5px; font-weight: 500; color: var(--txt-2);
  transition: color .2s, background .2s;
  position: relative;
}
.nav > li > a:hover { color: #fff; background: var(--surface); }
.nav > li > a.active { color: #fff; background: var(--surface-2); }
.nav > li > a.active::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 3px; height: 2px;
  border-radius: 2px; background: linear-gradient(90deg, var(--brand), var(--brand-soft));
}
.nav .has-sub { position: relative; }
.nav .sub {
  position: absolute; top: calc(100% + 10px); left: 0; min-width: 190px;
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--r-md); padding: 8px; box-shadow: var(--shadow-2);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: all .22s ease;
}
.nav .has-sub:hover .sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav .sub a {
  display: flex; justify-content: space-between; padding: 8px 12px;
  border-radius: 8px; font-size: 13.5px; color: var(--txt-2);
}
.nav .sub a:hover { background: var(--surface-2); color: #fff; }
.nav .sub a em { font-style: normal; font-size: 11px; color: var(--txt-3); }

/* 搜索 */
.search {
  display: flex; align-items: center; gap: 8px; flex: none;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 999px; padding: 7px 8px 7px 15px;
  width: 250px; transition: border-color .22s, box-shadow .22s, width .22s;
}
.search:focus-within { border-color: rgba(255, 45, 85, .6); box-shadow: var(--glow); width: 296px; }
.search svg { width: 16px; height: 16px; fill: var(--txt-3); flex: none; }
.search input { flex: 1; background: none; border: 0; outline: none; font-size: 13.5px; min-width: 0; }
.search input::placeholder { color: var(--txt-3); }
.search button {
  flex: none; padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: linear-gradient(135deg, var(--brand), #ff4f72); color: #fff;
  transition: transform .18s, box-shadow .18s;
}
.search button:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(255, 45, 85, .45); }

.header-actions { display: flex; align-items: center; gap: 10px; flex: none; }
.btn-ghost {
  padding: 8px 16px; border-radius: 999px; font-size: 13.5px; font-weight: 500;
  border: 1px solid var(--line-strong); color: var(--txt-2);
  transition: all .2s;
}
.btn-ghost:hover { color: #fff; border-color: rgba(255, 45, 85, .55); background: var(--surface); }
.burger { display: none; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); }
.burger span { display: block; width: 17px; height: 1.6px; background: var(--txt); margin: 4px auto; border-radius: 2px; transition: .25s; }

/* ---------- 5. 首页主视觉 ---------- */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: 62% 32%; opacity: .62; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, #0b0910 6%, rgba(11, 9, 16, .86) 38%, rgba(11, 9, 16, .3) 72%, rgba(11, 9, 16, .7) 100%),
    linear-gradient(180deg, rgba(11, 9, 16, .5), transparent 28%, rgba(11, 9, 16, .96));
}
.hero .wrap { padding-top: 96px; padding-bottom: 92px; }
.hero-inner { max-width: 660px; }

.badge-live {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px 6px 10px; border-radius: 999px;
  background: rgba(255, 45, 85, .13); border: 1px solid rgba(255, 45, 85, .38);
  font-size: 12.5px; color: #ffc2d0; font-weight: 500; margin-bottom: 22px;
  backdrop-filter: blur(8px);
}
.badge-live b { color: #fff; font-weight: 700; }
.badge-live .pip { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 10px var(--brand); }

.hero h1 {
  font-size: clamp(38px, 5.4vw, 62px);
  line-height: 1.16; font-weight: 800; letter-spacing: -.5px;
  margin-bottom: 20px;
}
.hero h1 .grad {
  background: linear-gradient(100deg, var(--brand) 6%, #ff8fa3 46%, var(--gold) 96%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p.lead {
  font-size: 16.5px; color: var(--txt-2); margin-bottom: 32px;
  max-width: 560px;
}
.hero p.lead strong { color: var(--txt); font-weight: 600; }

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 30px; border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), #ff4f72 55%, #b8266f);
  color: #fff; font-weight: 700; font-size: 15px;
  box-shadow: 0 10px 32px rgba(255, 45, 85, .38);
  transition: transform .2s, box-shadow .2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px rgba(255, 45, 85, .52); }
.btn-primary svg { width: 15px; height: 15px; fill: #fff; }
.btn-line {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 28px; border-radius: 999px;
  border: 1px solid var(--line-strong); color: var(--txt); font-weight: 600; font-size: 15px;
  backdrop-filter: blur(8px); background: rgba(255, 255, 255, .04);
  transition: all .2s;
}
.btn-line:hover { border-color: rgba(255, 255, 255, .4); background: rgba(255, 255, 255, .09); transform: translateY(-2px); }

.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-stats div b {
  display: block; font-size: 27px; font-weight: 800; letter-spacing: -.5px;
  background: linear-gradient(180deg, #fff, #cfc8da);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-stats div span { font-size: 12.5px; color: var(--txt-3); letter-spacing: .4px; }

/* ---------- 6. 区块通用 ---------- */
section.block { padding: 76px 0; position: relative; }
section.block.tight { padding: 56px 0; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.sec-head .txt { max-width: 720px; }
.sec-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--brand-soft); margin-bottom: 12px;
}
.sec-kicker::before { content: ""; width: 22px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--brand), transparent); }
.sec-head h2 { font-size: clamp(26px, 3.2vw, 36px); font-weight: 800; letter-spacing: -.4px; line-height: 1.24; }
.sec-head p.sub { color: var(--txt-2); margin-top: 12px; font-size: 15px; }
.sec-more {
  flex: none; display: inline-flex; align-items: center; gap: 7px;
  font-size: 14px; color: var(--txt-2); font-weight: 500;
  padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line);
  transition: all .2s;
}
.sec-more:hover { color: #fff; border-color: rgba(255, 45, 85, .5); background: var(--surface); gap: 11px; }

/* ---------- 7. 细分栏目 ---------- */
.cat-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(196px, 1fr));
}
.cat-card {
  position: relative; border-radius: var(--r-md); overflow: hidden;
  border: 1px solid var(--line); background: var(--bg-soft);
  transition: transform .28s cubic-bezier(.2, .8, .2, 1), border-color .28s, box-shadow .28s;
  isolation: isolate;
}
.cat-card:hover { transform: translateY(-5px); border-color: rgba(255, 45, 85, .45); box-shadow: var(--shadow-2); }
.cat-card .thumb { aspect-ratio: 4 / 3; overflow: hidden; }
.cat-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.2, .8, .2, 1); }
.cat-card:hover .thumb img { transform: scale(1.09); }
.cat-card .thumb::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11, 9, 16, .1) 30%, rgba(11, 9, 16, .93));
}
.cat-card .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 16px; z-index: 2; }
.cat-card .cap b { display: block; font-size: 15.5px; font-weight: 700; margin-bottom: 4px; }
.cat-card .cap span { font-size: 12px; color: var(--txt-2); }
.cat-card .cap em {
  font-style: normal; float: right; font-size: 11.5px; color: var(--brand-soft);
  background: rgba(255, 45, 85, .14); border: 1px solid rgba(255, 45, 85, .3);
  padding: 2px 9px; border-radius: 999px;
}

/* 筛选胶囊 */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.chip {
  padding: 8px 18px; border-radius: 999px; font-size: 13.5px; font-weight: 500;
  border: 1px solid var(--line); color: var(--txt-2); background: var(--surface);
  transition: all .2s;
}
.chip:hover { color: #fff; border-color: var(--line-strong); }
.chip.active {
  background: linear-gradient(135deg, var(--brand), #ff4f72);
  border-color: transparent; color: #fff; font-weight: 600;
  box-shadow: 0 6px 20px rgba(255, 45, 85, .34);
}

/* ---------- 8. 视频卡片 ---------- */
.v-grid {
  display: grid; gap: 26px 20px;
  grid-template-columns: repeat(auto-fill, minmax(268px, 1fr));
}
.v-card { position: relative; border-radius: var(--r-md); transition: transform .3s cubic-bezier(.2, .8, .2, 1); }
.v-card:hover { transform: translateY(-6px); }
.v-card .thumb {
  position: relative; aspect-ratio: 16 / 10; border-radius: var(--r-md);
  overflow: hidden; background: var(--bg-elev); border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}
.v-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.2, .8, .2, 1); }
.v-card:hover .thumb img { transform: scale(1.07); }
.v-card .thumb::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, .18), rgba(0, 0, 0, .06) 40%, rgba(11, 9, 16, .82));
  opacity: .85; transition: opacity .3s;
}
.v-card:hover .thumb::after { opacity: 1; }

.v-card .play {
  position: absolute; inset: 0; display: grid; place-items: center; z-index: 2;
  opacity: 0; transition: opacity .3s;
}
.v-card .play i {
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255, 45, 85, .92);
  box-shadow: 0 8px 30px rgba(255, 45, 85, .6);
  transform: scale(.7); transition: transform .3s cubic-bezier(.2, .9, .3, 1.4);
}
.v-card .play svg { width: 20px; height: 20px; fill: #fff; margin-left: 3px; }
.v-card:hover .play { opacity: 1; }
.v-card:hover .play i { transform: scale(1); }

.v-card .dur {
  position: absolute; right: 10px; bottom: 10px; z-index: 3;
  font-size: 11.5px; font-weight: 600; letter-spacing: .3px;
  padding: 3px 8px; border-radius: 6px;
  background: rgba(0, 0, 0, .72); color: #fff;
  backdrop-filter: blur(4px);
}
.v-card .tagline {
  position: absolute; left: 10px; top: 10px; z-index: 3;
  font-size: 11.5px; font-weight: 600;
  padding: 3px 10px; border-radius: 999px;
  background: rgba(255, 45, 85, .9); color: #fff;
  backdrop-filter: blur(4px);
}
.v-card .info { padding: 12px 4px 0; }
.v-card .info h3 {
  font-size: 15px; font-weight: 600; line-height: 1.45; margin-bottom: 7px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.v-card:hover .info h3 { color: var(--brand-soft); }
.v-card .meta { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--txt-3); }
.v-card .meta .author { display: inline-flex; align-items: center; gap: 6px; color: var(--txt-2); }
.v-card .meta .author i {
  width: 20px; height: 20px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-size: 10px; font-weight: 700; font-style: normal;
  color: #fff; background: linear-gradient(135deg, var(--brand), #7d2bff);
}
.v-card .meta .sep { width: 3px; height: 3px; border-radius: 50%; background: var(--txt-3); }

/* ---------- 9. 排行榜 ---------- */
.rank-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.rank-panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02));
  border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 24px; position: relative; overflow: hidden;
}
.rank-panel::before {
  content: ""; position: absolute; top: -60px; right: -40px; width: 190px; height: 190px;
  border-radius: 50%; background: radial-gradient(circle, rgba(255, 45, 85, .22), transparent 68%);
  pointer-events: none;
}
.rank-panel > h3 { font-size: 17px; font-weight: 700; margin-bottom: 18px; display: flex; align-items: center; gap: 9px; }
.rank-panel > h3 svg { width: 17px; height: 17px; fill: var(--gold); }
.rank-item {
  display: flex; align-items: center; gap: 14px; padding: 11px 10px;
  border-radius: var(--r-sm); transition: background .2s; position: relative;
}
.rank-item:hover { background: var(--surface-2); }
.rank-item .no {
  width: 24px; flex: none; text-align: center;
  font-size: 15px; font-weight: 800; font-style: italic; color: var(--txt-3);
  font-family: "Georgia", var(--font);
}
.rank-item:nth-child(2) .no { color: #ffd76b; }
.rank-item:nth-child(3) .no { color: #ff8fa3; }
.rank-item:nth-child(4) .no { color: var(--brand-soft); }
.rank-item .pic { width: 76px; height: 48px; border-radius: 8px; overflow: hidden; flex: none; border: 1px solid var(--line); }
.rank-item .pic img { width: 100%; height: 100%; object-fit: cover; }
.rank-item .body { flex: 1; min-width: 0; }
.rank-item .body b {
  display: block; font-size: 13.8px; font-weight: 600; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; margin-bottom: 3px;
}
.rank-item .body span { font-size: 11.5px; color: var(--txt-3); }
.rank-item .hot {
  flex: none; font-size: 12px; font-weight: 700; color: var(--brand-soft);
  font-family: "Georgia", var(--font);
}

/* ---------- 10. 平台介绍（关键词区） ---------- */
.intro-band { position: relative; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(255, 255, 255, .028), transparent); }
.intro-cols { display: grid; grid-template-columns: 1.15fr .85fr; gap: 54px; align-items: start; }
.intro-copy h2 { font-size: clamp(25px, 3vw, 34px); font-weight: 800; line-height: 1.3; margin-bottom: 20px; letter-spacing: -.3px; }
.intro-copy p { color: var(--txt-2); margin-bottom: 16px; font-size: 15.2px; }
.intro-copy p strong { color: var(--txt); font-weight: 600; }
.intro-copy .hl {
  color: #fff; font-weight: 600;
  background: linear-gradient(180deg, transparent 62%, rgba(255, 45, 85, .34) 62%);
  padding: 0 2px;
}
.kw-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.kw-cloud a {
  font-size: 12.8px; padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--txt-2); background: var(--surface);
  transition: all .2s;
}
.kw-cloud a:hover { color: #fff; border-color: rgba(255, 45, 85, .5); background: rgba(255, 45, 85, .12); }

.feat-list { display: grid; gap: 14px; }
.feat {
  display: flex; gap: 15px; padding: 18px 20px; border-radius: var(--r-md);
  border: 1px solid var(--line); background: linear-gradient(135deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
  transition: border-color .25s, transform .25s;
}
.feat:hover { border-color: rgba(255, 45, 85, .38); transform: translateX(4px); }
.feat .ico {
  width: 42px; height: 42px; flex: none; border-radius: 12px; display: grid; place-items: center;
  background: rgba(255, 45, 85, .13); border: 1px solid rgba(255, 45, 85, .28);
}
.feat .ico svg { width: 20px; height: 20px; fill: var(--brand-soft); }
.feat b { display: block; font-size: 15px; font-weight: 700; margin-bottom: 3px; }
.feat p { font-size: 13.2px; color: var(--txt-2); margin: 0; line-height: 1.6; }

/* ---------- 11. 页脚 ---------- */
.footer { border-top: 1px solid var(--line); background: linear-gradient(180deg, transparent, rgba(0, 0, 0, .5)); padding: 60px 0 0; margin-top: 20px; }
.f-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 44px; }
.f-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; letter-spacing: .4px; }
.f-col ul li { margin-bottom: 9px; }
.f-col ul a { font-size: 13.2px; color: var(--txt-3); transition: color .2s, padding-left .2s; display: inline-block; }
.f-col ul a:hover { color: var(--brand-soft); padding-left: 4px; }
.f-brand p { font-size: 13.2px; color: var(--txt-3); margin: 14px 0 18px; max-width: 300px; line-height: 1.7; }
.f-social { display: flex; gap: 10px; }
.f-social a {
  width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center;
  border: 1px solid var(--line); transition: all .2s;
}
.f-social a:hover { border-color: rgba(255, 45, 85, .5); background: var(--surface-2); transform: translateY(-2px); }
.f-social svg { width: 17px; height: 17px; fill: var(--txt-2); }
.f-seo { border-top: 1px solid var(--line); padding: 22px 0; }
.f-seo p { font-size: 12px; color: var(--txt-3); line-height: 2; }
.f-seo p a { color: var(--txt-3); }
.f-seo p a:hover { color: var(--brand-soft); }
.f-bottom {
  border-top: 1px solid var(--line); padding: 20px 0 34px;
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--txt-3);
}
.f-bottom .pills { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 12. 播放页 ---------- */
.player-layout { display: grid; grid-template-columns: minmax(0, 1fr) 352px; gap: 30px; align-items: start; }
.stage {
  border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line);
  background: #000; box-shadow: var(--shadow-2); position: relative;
}
.stage .screen { position: relative; aspect-ratio: 16 / 9; background: #000; }
.stage .screen img { width: 100%; height: 100%; object-fit: cover; opacity: .58; }
.stage .screen .hint {
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center; gap: 6px;
  background: radial-gradient(circle at 50% 50%, rgba(0, 0, 0, .35), rgba(0, 0, 0, .72));
}
.stage .screen .hint .big-play {
  width: 78px; height: 78px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), #ff4f72);
  box-shadow: 0 12px 46px rgba(255, 45, 85, .55);
  transition: transform .22s;
}
.stage.playing .screen .hint .big-play { transform: scale(.86); }
.stage .screen .hint .big-play svg { width: 26px; height: 26px; fill: #fff; margin-left: 4px; }
.stage.playing .screen .hint .big-play svg.pause { margin-left: 0; }
.stage .screen .hint span { font-size: 12.5px; color: var(--txt-2); margin-top: 14px; display: block; }
.stage .screen .hint .wrapx { display: grid; place-items: center; }

.ctrl {
  display: flex; align-items: center; gap: 14px; padding: 12px 18px;
  background: linear-gradient(180deg, rgba(20, 17, 26, .96), rgba(11, 9, 16, .99));
  border-top: 1px solid var(--line);
}
.ctrl button { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; transition: background .2s; }
.ctrl button:hover { background: var(--surface-2); }
.ctrl svg { width: 17px; height: 17px; fill: var(--txt); }
.ctrl .bar { flex: 1; height: 5px; border-radius: 99px; background: rgba(255, 255, 255, .14); position: relative; cursor: pointer; }
.ctrl .bar .fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; border-radius: 99px; background: linear-gradient(90deg, var(--brand), var(--brand-soft)); }
.ctrl .bar .fill::after {
  content: ""; position: absolute; right: -5px; top: 50%; transform: translateY(-50%);
  width: 12px; height: 12px; border-radius: 50%; background: #fff; box-shadow: 0 0 10px rgba(255, 45, 85, .8);
  opacity: 0; transition: opacity .2s;
}
.ctrl .bar:hover .fill::after { opacity: 1; }
.ctrl .time { font-size: 12px; color: var(--txt-2); font-family: "Georgia", var(--font); flex: none; }

.v-title-block { padding: 24px 2px 0; }
.v-title-block h1 { font-size: clamp(20px, 2.5vw, 27px); font-weight: 800; line-height: 1.35; margin-bottom: 14px; letter-spacing: -.3px; }
.v-submeta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; color: var(--txt-3); font-size: 13.2px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.v-submeta .badge { padding: 3px 11px; border-radius: 999px; background: rgba(255, 45, 85, .14); color: var(--brand-soft); border: 1px solid rgba(255, 45, 85, .3); font-size: 12px; font-weight: 600; }
.v-actions { display: flex; gap: 10px; flex-wrap: wrap; padding: 20px 0; border-bottom: 1px solid var(--line); }
.v-actions button {
  display: inline-flex; align-items: center; gap: 7px; padding: 9px 18px; border-radius: 999px;
  border: 1px solid var(--line); font-size: 13.4px; color: var(--txt-2); transition: all .2s;
}
.v-actions button:hover { color: #fff; border-color: rgba(255, 45, 85, .5); background: var(--surface); }
.v-actions button.on { color: #fff; background: rgba(255, 45, 85, .16); border-color: rgba(255, 45, 85, .5); }
.v-actions svg { width: 15px; height: 15px; fill: currentColor; }
.v-desc { padding: 22px 0; font-size: 14.5px; color: var(--txt-2); line-height: 1.85; }
.v-desc strong { color: var(--txt); }

.author-card { display: flex; align-items: center; gap: 14px; padding: 18px; border-radius: var(--r-md); border: 1px solid var(--line); background: var(--surface); margin-top: 6px; }
.author-card .avatar {
  width: 52px; height: 52px; border-radius: 50%; flex: none; display: grid; place-items: center;
  font-size: 20px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--brand), #7d2bff);
}
.author-card b { display: block; font-size: 15px; }
.author-card span { font-size: 12.5px; color: var(--txt-3); }
.author-card button { margin-left: auto; padding: 8px 20px; border-radius: 999px; font-size: 13px; font-weight: 600; color: #fff; background: linear-gradient(135deg, var(--brand), #ff4f72); }

.side-head { font-size: 15.5px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.side-head::before { content: ""; width: 3px; height: 15px; border-radius: 2px; background: linear-gradient(180deg, var(--brand), var(--gold)); }
.side-list { display: grid; gap: 15px; }
.side-item { display: flex; gap: 12px; align-items: flex-start; }
.side-item .pic { width: 118px; height: 70px; border-radius: 9px; overflow: hidden; flex: none; border: 1px solid var(--line); position: relative; }
.side-item .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.side-item:hover .pic img { transform: scale(1.08); }
.side-item .pic i {
  position: absolute; right: 5px; bottom: 5px; font-style: normal; font-size: 10.5px;
  padding: 1px 6px; border-radius: 4px; background: rgba(0, 0, 0, .75); color: #fff;
}
.side-item .body { min-width: 0; }
.side-item .body b {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  font-size: 13.6px; font-weight: 600; line-height: 1.5; margin-bottom: 6px; transition: color .2s;
}
.side-item:hover .body b { color: var(--brand-soft); }
.side-item .body span { font-size: 11.8px; color: var(--txt-3); display: block; }

/* ---------- 13. 关于页 ---------- */
.page-head { padding: 62px 0 40px; border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.page-head::after {
  content: ""; position: absolute; right: -80px; top: -120px; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 45, 85, .18), transparent 65%);
}
.crumb { font-size: 13px; color: var(--txt-3); margin-bottom: 16px; }
.crumb a:hover { color: var(--brand-soft); }
.page-head h1 { font-size: clamp(30px, 4vw, 44px); font-weight: 800; letter-spacing: -.5px; margin-bottom: 16px; }
.page-head p { color: var(--txt-2); max-width: 760px; font-size: 15.5px; }

.article { max-width: 900px; }
.article h2 { font-size: 25px; font-weight: 800; margin: 46px 0 18px; letter-spacing: -.3px; scroll-margin-top: 100px; }
.article h2:first-child { margin-top: 0; }
.article h3 { font-size: 18px; font-weight: 700; margin: 28px 0 12px; }
.article p { color: var(--txt-2); margin-bottom: 16px; font-size: 15.2px; }
.article p strong, .article li strong { color: var(--txt); font-weight: 600; }
.article ul { margin: 0 0 18px; display: grid; gap: 10px; }
.article ul li { position: relative; padding-left: 22px; color: var(--txt-2); font-size: 15px; }
.article ul li::before {
  content: ""; position: absolute; left: 4px; top: 10px;
  width: 7px; height: 7px; border-radius: 2px; transform: rotate(45deg);
  background: linear-gradient(135deg, var(--brand), var(--brand-soft));
}
.article .note {
  padding: 20px 24px; border-radius: var(--r-md); margin: 24px 0;
  border: 1px solid rgba(255, 45, 85, .28); background: rgba(255, 45, 85, .07);
  font-size: 14.5px; color: var(--txt-2);
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; padding: 20px 0; font-size: 16px; font-weight: 600; transition: color .2s; }
.faq-q:hover { color: var(--brand-soft); }
.faq-q .plus { margin-left: auto; flex: none; width: 22px; height: 22px; position: relative; }
.faq-q .plus::before, .faq-q .plus::after {
  content: ""; position: absolute; left: 50%; top: 50%; background: var(--txt-2); border-radius: 2px;
  transform: translate(-50%, -50%); transition: transform .25s, opacity .25s;
}
.faq-q .plus::before { width: 13px; height: 1.8px; }
.faq-q .plus::after { width: 1.8px; height: 13px; }
.faq-item.open .faq-q .plus::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-item.open .faq-q { color: var(--brand-soft); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .34s ease; }
.faq-a p { padding: 0 0 20px; margin: 0; color: var(--txt-2); font-size: 14.6px; max-width: 800px; }

/* ---------- 14. 返回顶部 / 空状态 ---------- */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 40;
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), #b8266f);
  box-shadow: 0 10px 30px rgba(255, 45, 85, .4);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all .3s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { transform: translateY(-3px); }
.to-top svg { width: 18px; height: 18px; fill: #fff; }

.empty { text-align: center; padding: 70px 20px; border: 1px dashed var(--line-strong); border-radius: var(--r-lg); }
.empty b { display: block; font-size: 17px; margin-bottom: 8px; }
.empty span { color: var(--txt-3); font-size: 14px; }

/* ---------- 15. 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s cubic-bezier(.2, .8, .2, 1), transform .65s cubic-bezier(.2, .8, .2, 1); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 16. 响应式 ---------- */
@media (max-width: 1100px) {
  .search { width: 200px; }
  .intro-cols { grid-template-columns: 1fr; gap: 36px; }
  .player-layout { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 880px) {
  .nav, .header-actions .btn-ghost, .topbar .top-links { display: none; }
  .burger { display: block; }
  .search { width: 100%; max-width: 260px; }
  .header .wrap { gap: 14px; }
  .nav.open {
    display: grid; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: rgba(11, 9, 16, .985); border-bottom: 1px solid var(--line);
    padding: 14px 20px 22px; gap: 4px; backdrop-filter: blur(18px);
  }
  .nav.open > li > a { padding: 12px 4px; }
  .nav.open .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; background: none; padding: 0 0 8px 12px; }
  .hero .wrap { padding-top: 62px; padding-bottom: 66px; }
  .hero-stats { gap: 26px; }
  .rank-wrap { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr 1fr; }
  section.block { padding: 56px 0; }
}
@media (max-width: 620px) {
  .wrap { padding: 0 16px; }
  .hero-stats div b { font-size: 22px; }
  .v-grid { grid-template-columns: 1fr; gap: 22px; }
  .cat-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .f-grid { grid-template-columns: 1fr; gap: 26px; }
  .logo-text i { display: none; }
  .side-item .pic { width: 96px; height: 58px; }
}