/* ==========================================================================
   今日看料 · 设计系统 v1.0
   风格：现代 / 温暖 / 可爱不失专业
   适配：桌面 · 平板 · 手机（响应式）
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计变量
   -------------------------------------------------------------------------- */
:root {
  /* 品牌色 */
  --brand: #ff6b35;
  --brand-600: #f2541b;
  --brand-700: #d8430f;
  --brand-100: #ffece4;
  --brand-200: #ffd8c8;
  --sun: #ffc93c;
  --rose: #ff477e;
  --mint: #16c2a3;
  --grape: #7a5cff;
  --sky: #2f9cf4;

  /* 中性色 */
  --ink: #17161c;
  --ink-2: #302e38;
  --muted: #79747f;
  --muted-2: #a09aa8;
  --line: #efeae4;
  --line-2: #e4ddd5;
  --bg: #fffbf7;
  --bg-2: #fff4ec;
  --surface: #ffffff;
  --dark: #171320;
  --dark-2: #241e30;

  /* 渐变 */
  --grad-brand: linear-gradient(135deg, #ff7a3d 0%, #ff477e 100%);
  --grad-warm: linear-gradient(120deg, #ffc93c 0%, #ff7a3d 52%, #ff477e 100%);
  --grad-ink: linear-gradient(155deg, #1b1626 0%, #2a1f35 55%, #3d2130 100%);
  --grad-soft: linear-gradient(180deg, #fff7f1 0%, #fffbf7 100%);

  /* 圆角 */
  --r-xs: 10px;
  --r-sm: 14px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 36px;
  --r-pill: 999px;

  /* 阴影 */
  --sh-xs: 0 1px 2px rgba(23, 22, 28, 0.05);
  --sh-sm: 0 4px 16px rgba(23, 22, 28, 0.06);
  --sh-md: 0 16px 40px -14px rgba(23, 22, 28, 0.18);
  --sh-lg: 0 34px 74px -28px rgba(23, 22, 28, 0.3);
  --sh-brand: 0 16px 36px -14px rgba(255, 107, 53, 0.55);

  /* 排版 */
  --font: "Outfit", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  /* 布局 */
  --container: 1200px;
  --gutter: 24px;
  --header-h: 84px;
  --ease: cubic-bezier(0.22, 0.68, 0, 1);
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5.2vw, 3.5rem);
}
h2 {
  font-size: clamp(1.55rem, 3.6vw, 2.5rem);
}
h3 {
  font-size: clamp(1.12rem, 2vw, 1.4rem);
}
h4 {
  font-size: 1.05rem;
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s var(--ease), opacity 0.25s var(--ease);
}

img {
  max-width: 100%;
  display: block;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

svg {
  display: block;
  flex: none;
}

:focus-visible {
  outline: 3px solid rgba(255, 107, 53, 0.45);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection {
  background: var(--brand);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-2);
}
::-webkit-scrollbar-thumb {
  background: #e2d6cb;
  border-radius: 999px;
  border: 2px solid var(--bg-2);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--brand-300, #ffb08a);
}

/* --------------------------------------------------------------------------
   3. 布局工具
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding: clamp(56px, 8vw, 104px) 0;
}

.section--tight {
  padding: clamp(40px, 5vw, 64px) 0;
}

.section--soft {
  background: var(--grad-soft);
}

.section--dark {
  background: var(--grad-ink);
  color: rgba(255, 255, 255, 0.72);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: #fff;
}

.grid {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.grid-auto {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.center {
  text-align: center;
}

.stack-8 > * + * {
  margin-top: 8px;
}
.stack-16 > * + * {
  margin-top: 16px;
}
.stack-24 > * + * {
  margin-top: 24px;
}

.mt-24 {
  margin-top: 24px;
}
.mt-40 {
  margin-top: 40px;
}
.mt-56 {
  margin-top: 56px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 999;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  transition: top 0.3s var(--ease);
}
.skip-link:focus {
  top: 16px;
}

/* --------------------------------------------------------------------------
   4. 文字与标题组件
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px 7px 12px;
  border-radius: var(--r-pill);
  background: var(--brand-100);
  color: var(--brand-700);
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
}

.eyebrow--light {
  background: rgba(255, 255, 255, 0.12);
  color: #ffd9c8;
}

.eyebrow .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.6);
  animation: pulse 2.2s infinite;
}

.section--dark .eyebrow .pulse {
  background: var(--sun);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.55);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(255, 107, 53, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0);
  }
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(28px, 4vw, 52px);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head h2 {
  margin-top: 16px;
}

.section-head p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 1.03rem;
}

.grad-text {
  background: var(--grad-warm);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: clamp(1.02rem, 1.6vw, 1.16rem);
  color: var(--muted);
}

.section--dark .lead,
.section--dark .muted {
  color: rgba(255, 255, 255, 0.66);
}

.muted {
  color: var(--muted);
}

.tiny {
  font-size: 0.82rem;
}

/* --------------------------------------------------------------------------
   5. 按钮
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--ink);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.btn svg {
  transition: transform 0.3s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  --btn-bg: var(--grad-brand);
  box-shadow: var(--sh-brand);
}
.btn-primary:hover {
  box-shadow: 0 22px 44px -14px rgba(255, 71, 126, 0.6);
}

.btn-ink {
  --btn-bg: var(--ink);
}
.btn-ink:hover {
  --btn-bg: var(--brand-600);
}

.btn-light {
  --btn-bg: #fff;
  --btn-fg: var(--ink);
  box-shadow: var(--sh-sm);
}
.btn-light:hover {
  --btn-fg: var(--brand-700);
}

.btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  border-color: var(--line-2);
}
.btn-ghost:hover {
  --btn-bg: #fff;
  border-color: var(--brand);
  --btn-fg: var(--brand-700);
}

.btn-outline-light {
  --btn-bg: transparent;
  --btn-fg: #fff;
  border-color: rgba(255, 255, 255, 0.28);
}
.btn-outline-light:hover {
  --btn-bg: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-lg {
  padding: 17px 34px;
  font-size: 1rem;
}

.btn-sm {
  padding: 10px 18px;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

.btn:hover svg.arrow {
  transform: translateX(4px);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-group--center {
  justify-content: center;
}

/* --------------------------------------------------------------------------
   6. 头部导航
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.8rem;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 40px;
}

.topbar-text {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-text strong {
  color: #fff;
}

.topbar-link {
  color: var(--sun);
  font-weight: 600;
}
.topbar-link:hover {
  color: #fff;
}

.nav {
  background: rgba(255, 251, 247, 0.86);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background 0.3s var(--ease);
}

.site-header.is-stuck .nav {
  border-bottom-color: var(--line);
  box-shadow: 0 12px 30px -22px rgba(23, 22, 28, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 74px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--grad-brand);
  display: grid;
  place-items: center;
  color: #fff;
  box-shadow: var(--sh-brand);
  transition: transform 0.4s var(--ease);
}

.logo:hover .logo-mark {
  transform: rotate(-8deg) scale(1.05);
}

.logo-text strong {
  display: block;
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.logo-text em {
  display: block;
  font-size: 0.66rem;
  font-style: normal;
  letter-spacing: 0.16em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-links a {
  position: relative;
  display: block;
  padding: 10px 15px;
  border-radius: var(--r-pill);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--ink-2);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
  transform: translateX(-50%);
  transition: width 0.3s var(--ease);
}

.nav-links a:hover {
  color: var(--brand-700);
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
  width: 22px;
}

.nav-links a.is-active {
  color: var(--brand-700);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  border: 1.5px solid var(--line-2);
  background: #fff;
  padding: 12px 11px;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.25s var(--ease);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

.nav-scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(23, 22, 28, 0.5);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
  z-index: 98;
}

/* --------------------------------------------------------------------------
   7. 卡片
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(22px, 2.6vw, 30px);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-200);
  box-shadow: var(--sh-md);
}

.card-flat:hover {
  transform: none;
  box-shadow: none;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 17px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--grad-brand);
  box-shadow: var(--sh-sm);
  flex: none;
}

.icon-badge--sun {
  background: linear-gradient(135deg, #ffd24d, #ff9a3c);
}
.icon-badge--mint {
  background: linear-gradient(135deg, #3ddbb8, #12a58b);
}
.icon-badge--grape {
  background: linear-gradient(135deg, #a08cff, #6a4dff);
}
.icon-badge--sky {
  background: linear-gradient(135deg, #63c1ff, #2f7cf4);
}
.icon-badge--soft {
  background: var(--brand-100);
  color: var(--brand-700);
  box-shadow: none;
}

.card h3 {
  margin-bottom: 10px;
}

.card p {
  color: var(--muted);
  font-size: 0.94rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--brand-700);
}

.card-link svg {
  transition: transform 0.3s var(--ease);
}

.card:hover .card-link svg {
  transform: translateX(4px);
}

/* 标签 / 筹码 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  background: var(--bg-2);
  color: var(--brand-700);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.4;
}

.tag--mint {
  background: #e2f8f3;
  color: #0d8d76;
}
.tag--grape {
  background: #efecff;
  color: #5a41d6;
}
.tag--sun {
  background: #fff5da;
  color: #a8730a;
}
.tag--sky {
  background: #e4f2ff;
  color: #1a6fc4;
}
.tag--ink {
  background: var(--ink);
  color: #fff;
}
.tag--outline {
  background: transparent;
  border: 1px solid var(--line-2);
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

/* --------------------------------------------------------------------------
   8. 首屏 Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 7vw, 92px) 0 clamp(56px, 8vw, 104px);
  background: radial-gradient(
      1100px 520px at 82% -10%,
      rgba(255, 201, 60, 0.28),
      transparent 62%
    ),
    radial-gradient(900px 480px at 2% 12%, rgba(255, 71, 126, 0.14), transparent 60%),
    var(--bg);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--line);
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
  pointer-events: none;
}

.hero-blob--a {
  width: 340px;
  height: 340px;
  right: -80px;
  top: 60px;
  background: rgba(255, 107, 53, 0.3);
  animation: float 12s ease-in-out infinite;
}

.hero-blob--b {
  width: 260px;
  height: 260px;
  left: -90px;
  bottom: -60px;
  background: rgba(122, 92, 255, 0.24);
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -26px, 0);
  }
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.hero h1 {
  margin-top: 20px;
}

.hero h1 .line {
  display: block;
}

.hero .lead {
  margin-top: 20px;
  max-width: 540px;
}

.hero .btn-group {
  margin-top: 30px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px dashed var(--line-2);
}

.hero-meta-item strong {
  display: block;
  font-size: 1.42rem;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}

.hero-meta-item span {
  font-size: 0.8rem;
  color: var(--muted);
}

.hero-star {
  display: inline-flex;
  color: var(--sun);
  gap: 2px;
}

/* 手机模型 */
.phone-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 10px;
}

.phone {
  position: relative;
  width: min(320px, 82vw);
  border-radius: 44px;
  padding: 12px;
  background: linear-gradient(160deg, #2b2437, #171320);
  box-shadow: 0 48px 90px -34px rgba(23, 19, 32, 0.7),
    inset 0 0 0 2px rgba(255, 255, 255, 0.07);
}

.phone::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 92px;
  height: 22px;
  border-radius: 999px;
  background: #0d0b12;
  z-index: 3;
}

.phone-screen {
  position: relative;
  border-radius: 34px;
  background: var(--bg);
  overflow: hidden;
  padding: 40px 14px 14px;
}

.phone-appbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.phone-appbar strong {
  font-size: 0.86rem;
  color: var(--ink);
}

.phone-chip {
  font-size: 0.62rem;
  font-weight: 700;
  color: #fff;
  background: var(--grad-brand);
  padding: 4px 9px;
  border-radius: 999px;
}

.phone-list {
  display: grid;
  gap: 10px;
}

.phone-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 10px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 9px;
}

.phone-item img {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  object-fit: cover;
}

.phone-item b {
  display: block;
  font-size: 0.74rem;
  color: var(--ink);
  line-height: 1.35;
}

.phone-item i {
  font-style: normal;
  font-size: 0.62rem;
  color: var(--muted-2);
}

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 12px 16px;
  box-shadow: var(--sh-md);
  animation: float 9s ease-in-out infinite;
}

.float-card b {
  font-size: 0.86rem;
  color: var(--ink);
  line-height: 1.3;
}

.float-card i {
  font-style: normal;
  font-size: 0.7rem;
  color: var(--muted);
}

.float-card--tl {
  left: -6px;
  top: 46px;
  animation-delay: -2s;
}

.float-card--br {
  right: -10px;
  bottom: 60px;
  animation-delay: -5s;
}

/* --------------------------------------------------------------------------
   9. 跑马灯
   -------------------------------------------------------------------------- */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: #fff;
  padding: 18px 0;
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent,
    #000 12%,
    #000 88%,
    transparent
  );
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.marquee-track {
  display: flex;
  gap: 40px;
  width: max-content;
  animation: slide 34s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

@keyframes slide {
  to {
    transform: translateX(-50%);
  }
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--muted);
  white-space: nowrap;
}

.marquee-item b {
  color: var(--ink);
}

.marquee-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
}

/* --------------------------------------------------------------------------
   10. 视频卡片
   -------------------------------------------------------------------------- */
.video-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
}

.video-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-200);
  box-shadow: var(--sh-md);
}

.thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-2);
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.video-card:hover .thumb img {
  transform: scale(1.06);
}

.thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(23, 19, 32, 0) 40%, rgba(23, 19, 32, 0.62));
  opacity: 0.85;
  transition: opacity 0.4s var(--ease);
}

.video-card:hover .thumb::after {
  opacity: 1;
}

.thumb-badges,
.thumb-foot {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
}

.thumb-badges {
  top: 12px;
  left: 12px;
}

.thumb-foot {
  bottom: 12px;
  left: 12px;
  right: 12px;
  justify-content: space-between;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
}

.thumb-foot span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.duration {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  padding: 3px 9px;
  border-radius: 8px;
  background: rgba(13, 11, 18, 0.78);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.play-btn {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: 62px;
  height: 62px;
  margin: -31px 0 0 -31px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.92);
  color: var(--brand-700);
  box-shadow: 0 16px 34px -12px rgba(0, 0, 0, 0.55);
  transform: scale(0.86);
  opacity: 0;
  transition: transform 0.4s var(--ease), opacity 0.4s var(--ease);
}

.video-card:hover .play-btn,
.video-card:focus-within .play-btn {
  transform: scale(1);
  opacity: 1;
}

.video-body {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.video-body h3 {
  font-size: 1.02rem;
  line-height: 1.5;
  margin-bottom: 8px;
}

.video-body p {
  color: var(--muted);
  font-size: 0.87rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: auto;
  padding-top: 16px;
  font-size: 0.76rem;
  color: var(--muted-2);
}

.video-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* 筛选 chips */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 30px;
}

.chip {
  padding: 9px 18px;
  border-radius: var(--r-pill);
  border: 1.5px solid var(--line-2);
  background: #fff;
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  transition: all 0.3s var(--ease);
}

.chip:hover {
  border-color: var(--brand);
  color: var(--brand-700);
}

.chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.filter-count {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--muted-2);
}

.is-hidden {
  display: none !important;
}

/* --------------------------------------------------------------------------
   11. 榜单
   -------------------------------------------------------------------------- */
.rank-list {
  display: grid;
  gap: 4px;
}

.rank-item {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 12px;
  border-radius: var(--r-sm);
  transition: background 0.3s var(--ease);
}

.rank-item:hover {
  background: var(--bg-2);
}

.rank-num {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--muted);
  background: var(--bg-2);
  font-variant-numeric: tabular-nums;
}

.rank-item:nth-child(1) .rank-num {
  background: var(--grad-brand);
  color: #fff;
}
.rank-item:nth-child(2) .rank-num {
  background: linear-gradient(135deg, #ffb03a, #ff7a3d);
  color: #fff;
}
.rank-item:nth-child(3) .rank-num {
  background: linear-gradient(135deg, #ffd88a, #ffb03a);
  color: #7a4a00;
}

.rank-main b {
  display: block;
  font-size: 0.94rem;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.45;
}

.rank-main i {
  font-style: normal;
  font-size: 0.76rem;
  color: var(--muted-2);
}

.rank-heat {
  text-align: right;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brand-700);
  white-space: nowrap;
}

.heat-bar {
  width: 100%;
  height: 5px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
  margin-top: 7px;
}

.heat-bar i {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--grad-warm);
}

/* --------------------------------------------------------------------------
   12. 话题 / 文章列表
   -------------------------------------------------------------------------- */
.topic-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  border-radius: var(--r-lg);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
}

.topic-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-200);
  box-shadow: var(--sh-md);
}

.topic-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topic-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.45;
}

.topic-title:hover {
  color: var(--brand-700);
}

.topic-desc {
  color: var(--muted);
  font-size: 0.9rem;
}

.topic-stats {
  display: flex;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-2);
  font-size: 0.78rem;
  color: var(--muted-2);
}

.topic-stats span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* 文章条目 */
.post-item {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 22px;
  align-items: center;
  padding: 18px;
  border-radius: var(--r-lg);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

.post-item:hover {
  transform: translateX(6px);
  border-color: var(--brand-200);
  box-shadow: var(--sh-sm);
}

.post-item img {
  width: 132px;
  height: 96px;
  border-radius: var(--r-md);
  object-fit: cover;
}

.post-item h3 {
  font-size: 1.04rem;
  margin-bottom: 6px;
  line-height: 1.45;
}

.post-item p {
  color: var(--muted);
  font-size: 0.87rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
  font-size: 0.76rem;
  color: var(--muted-2);
}

.post-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* --------------------------------------------------------------------------
   13. 数据 / 特性
   -------------------------------------------------------------------------- */
.stat-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px;
  background: var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.stat {
  background: #fff;
  padding: clamp(22px, 3vw, 34px);
  text-align: center;
}

.stat strong {
  display: block;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.stat span {
  font-size: 0.84rem;
  color: var(--muted);
}

.feature {
  display: flex;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px dashed var(--line-2);
}

.feature:last-child {
  border-bottom: 0;
}

.feature-body b {
  display: block;
  font-size: 1.02rem;
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 6px;
}

.feature-body p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* 图片拼贴 */
.collage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.collage img {
  width: 100%;
  border-radius: var(--r-lg);
  object-fit: cover;
  box-shadow: var(--sh-md);
}

.collage img:first-child {
  height: 260px;
  margin-top: 34px;
}

.collage img:last-child {
  height: 260px;
}

.collage-badge {
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  background: #fff;
  border-radius: var(--r-md);
  padding: 14px 20px;
  box-shadow: var(--sh-lg);
  text-align: center;
  z-index: 3;
}

.collage-badge strong {
  display: block;
  font-size: 1.3rem;
  color: var(--ink);
  line-height: 1.2;
}

.collage-badge span {
  font-size: 0.74rem;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   14. 评价
   -------------------------------------------------------------------------- */
.quote-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.quote-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--sh-md);
}

.quote-mark {
  font-size: 3rem;
  line-height: 0.6;
  font-weight: 800;
  color: var(--brand-200);
}

.quote-card p {
  color: var(--ink-2);
  font-size: 0.96rem;
  flex: 1;
}

.quote-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-2);
}

.avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
}

.avatar--initial {
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  background: var(--grad-brand);
}

.quote-user b {
  display: block;
  font-size: 0.92rem;
  color: var(--ink);
}

.quote-user i {
  font-style: normal;
  font-size: 0.76rem;
  color: var(--muted-2);
}

/* --------------------------------------------------------------------------
   15. CTA / 下载
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  background: var(--grad-ink);
  padding: clamp(34px, 5vw, 68px);
  color: rgba(255, 255, 255, 0.74);
}

.cta-band::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  top: -160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.55), transparent 68%);
}

.cta-band::after {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  left: -120px;
  bottom: -180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 92, 255, 0.42), transparent 68%);
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.cta-band h2 {
  color: #fff;
}

.cta-band .lead {
  color: rgba(255, 255, 255, 0.7);
  margin-top: 16px;
}

.qr-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--r-lg);
  padding: 24px;
  text-align: center;
  backdrop-filter: blur(6px);
}

.qr-canvas {
  width: 168px;
  height: 168px;
  margin: 0 auto 16px;
  border-radius: var(--r-md);
  background: #fff;
  padding: 12px;
  box-shadow: 0 18px 40px -16px rgba(0, 0, 0, 0.55);
}

.qr-box strong {
  display: block;
  color: #fff;
  font-size: 1rem;
}

.qr-box span {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

.store-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  transition: all 0.3s var(--ease);
}

.store-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-3px);
}

.store-btn b {
  display: block;
  font-size: 0.94rem;
  line-height: 1.25;
}

.store-btn i {
  font-style: normal;
  font-size: 0.68rem;
  opacity: 0.68;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* 订阅 */
.subscribe {
  display: flex;
  gap: 10px;
  padding: 8px;
  background: #fff;
  border: 1.5px solid var(--line-2);
  border-radius: var(--r-pill);
  max-width: 520px;
  transition: border-color 0.3s var(--ease);
}

.subscribe:focus-within {
  border-color: var(--brand);
}

.subscribe input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  padding: 10px 18px;
  font: inherit;
  font-size: 0.92rem;
  background: transparent;
  color: var(--ink);
}

.subscribe input::placeholder {
  color: var(--muted-2);
}

/* --------------------------------------------------------------------------
   16. FAQ 手风琴
   -------------------------------------------------------------------------- */
.faq {
  display: grid;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.faq-item.is-open {
  border-color: var(--brand-200);
  box-shadow: var(--sh-sm);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.faq-q svg {
  transition: transform 0.35s var(--ease);
  color: var(--brand);
}

.faq-item.is-open .faq-q svg {
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}

.faq-a-inner {
  padding: 0 24px 22px;
  color: var(--muted);
  font-size: 0.93rem;
}

/* --------------------------------------------------------------------------
   17. 提示条 / 弹层
   -------------------------------------------------------------------------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translate(-50%, 140%);
  z-index: 300;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100vw - 40px);
  padding: 14px 24px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--sh-lg);
  transition: transform 0.45s var(--ease);
}

.toast.is-show {
  transform: translate(-50%, 0);
}

.toast svg {
  color: var(--sun);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(15, 12, 20, 0.72);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease);
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  position: relative;
  width: min(760px, 100%);
  max-height: 90vh;
  overflow: auto;
  background: #fff;
  border-radius: var(--r-xl);
  padding: 14px;
  transform: translateY(24px) scale(0.97);
  transition: transform 0.4s var(--ease);
}

.modal.is-open .modal-box {
  transform: translateY(0) scale(1);
}

.modal-media {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--ink);
}

.modal-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.72;
}

.modal-play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.modal-play span {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.94);
  color: var(--brand-700);
  box-shadow: 0 20px 40px -14px rgba(0, 0, 0, 0.6);
  animation: pulseRing 2.4s infinite;
}

@keyframes pulseRing {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.5);
  }
  70% {
    box-shadow: 0 0 0 22px rgba(255, 255, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  }
}

.modal-body {
  padding: 22px 14px 12px;
}

.modal-body h3 {
  margin-bottom: 10px;
}

.modal-body p {
  color: var(--muted);
  font-size: 0.93rem;
}

.modal-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--line-2);
}

.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 4;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  transition: background 0.3s var(--ease);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* --------------------------------------------------------------------------
   18. 页脚
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.6);
  padding: clamp(48px, 6vw, 76px) 0 0;
  margin-top: clamp(40px, 6vw, 80px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(28px, 4vw, 52px);
  padding-bottom: 44px;
}

.site-footer .logo-text strong {
  color: #fff;
}

.site-footer .logo-text em {
  color: rgba(255, 255, 255, 0.42);
}

.footer-about {
  margin-top: 20px;
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 320px;
}

.footer-title {
  color: #fff;
  font-size: 0.94rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-links {
  display: grid;
  gap: 11px;
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: var(--brand);
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.75);
  transition: all 0.3s var(--ease);
}

.footer-social a:hover {
  background: var(--grad-brand);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-tags .tag {
  background: rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-tags .tag:hover {
  background: rgba(255, 107, 53, 0.2);
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.42);
}

.footer-bottom a:hover {
  color: #fff;
}

.footer-disclaimer {
  font-size: 0.76rem;
  color: rgba(255, 255, 255, 0.36);
  padding-bottom: 30px;
  line-height: 1.8;
  max-width: 900px;
}

/* 回到顶部 */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--sh-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: all 0.35s var(--ease);
}

.to-top.is-show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.to-top:hover {
  background: var(--grad-brand);
  color: #fff;
  border-color: transparent;
}

/* --------------------------------------------------------------------------
   19. 页面通用头部（内页）
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 6vw, 80px) 0 clamp(36px, 5vw, 60px);
  background: radial-gradient(
      900px 420px at 78% 0%,
      rgba(255, 201, 60, 0.26),
      transparent 60%
    ),
    radial-gradient(700px 380px at 0% 20%, rgba(122, 92, 255, 0.12), transparent 62%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}

.page-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.page-hero h1 {
  margin-top: 18px;
}

.page-hero .lead {
  margin-top: 18px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--muted-2);
}

.breadcrumb a:hover {
  color: var(--brand-700);
}

.breadcrumb svg {
  opacity: 0.5;
}

.page-aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.aside-sticky {
  position: sticky;
  top: 118px;
  display: grid;
  gap: 20px;
}

.aside-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px;
}

.aside-card h3 {
  font-size: 1.04rem;
  margin-bottom: 6px;
}

/* --------------------------------------------------------------------------
   20. 分页 / 加载更多
   -------------------------------------------------------------------------- */
.pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 44px;
  flex-wrap: wrap;
}

.pager a,
.pager span {
  min-width: 42px;
  height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  display: inline-grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line-2);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-2);
  transition: all 0.3s var(--ease);
}

.pager a:hover {
  border-color: var(--brand);
  color: var(--brand-700);
}

.pager .is-current {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

/* --------------------------------------------------------------------------
   21. 滚动显现动画
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   22. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .nav-links a {
    padding: 10px 11px;
    font-size: 0.9rem;
  }
  .page-aside {
    grid-template-columns: minmax(0, 1fr);
  }
  .aside-sticky {
    position: static;
  }
}

@media (max-width: 960px) {
  :root {
    --gutter: 20px;
  }

  .split,
  .hero-inner,
  .cta-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .phone-wrap {
    order: -1;
  }

  .hero .lead {
    max-width: none;
  }

  .cta-inner .qr-box {
    max-width: 320px;
  }

  /* 移动导航 */
  .nav-toggle {
    display: flex;
  }

  .nav-scrim {
    display: block;
  }

  .site-header.is-open .nav-scrim {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 99;
    width: min(320px, 86vw);
    height: 100dvh;
    margin-left: 0;
    padding: 104px 22px 40px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    background: var(--bg);
    box-shadow: -30px 0 60px -30px rgba(23, 22, 28, 0.5);
    transform: translateX(105%);
    transition: transform 0.42s var(--ease);
    overflow-y: auto;
  }

  .site-header.is-open .nav-links {
    transform: translateX(0);
  }

  .nav-links a {
    padding: 15px 18px;
    font-size: 1.02rem;
    border-radius: var(--r-md);
    background: #fff;
    border: 1px solid var(--line);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links a.is-active {
    background: var(--brand-100);
    border-color: var(--brand-200);
  }

  .nav-actions .hide-sm {
    display: none;
  }
}

@media (max-width: 680px) {
  :root {
    --gutter: 18px;
  }

  body {
    font-size: 15.5px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .topbar-text {
    font-size: 0.74rem;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  .topbar-link {
    display: none;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .stat-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .post-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .post-item img {
    width: 100%;
    height: 168px;
  }

  .float-card--tl {
    left: -4px;
    top: 20px;
    transform: scale(0.88);
    transform-origin: left center;
  }

  .float-card--br {
    right: -6px;
    bottom: 30px;
    transform: scale(0.88);
    transform-origin: right center;
  }

  .cta-band {
    border-radius: var(--r-lg);
  }

  .footer-bottom {
    justify-content: flex-start;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
  }

  .filter-count {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 420px) {
  .logo-text em {
    display: none;
  }
  .btn {
    padding: 12px 20px;
    font-size: 0.9rem;
  }
  .btn-lg {
    padding: 15px 24px;
    font-size: 0.94rem;
  }
  .btn-group .btn {
    flex: 1 1 100%;
  }
}

/* 无障碍：减少动效 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* 打印 */
@media print {
  .site-header,
  .to-top,
  .cta-band,
  .site-footer {
    display: none;
  }
  body {
    background: #fff;
  }
}

/* ==========================================================================
   23. 附加组件（内页专用）
   ========================================================================== */

/* 宽幅缩略图 */
.thumb--wide {
  aspect-ratio: 16 / 9;
}

/* 主推播放器 */
.feature-player {
  border-radius: var(--r-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  transition: box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}

.feature-player:hover {
  border-color: var(--brand-200);
  box-shadow: var(--sh-md);
}

.feature-player .thumb {
  aspect-ratio: 16 / 9;
}

.feature-player .play-btn {
  width: 78px;
  height: 78px;
  margin: -39px 0 0 -39px;
  opacity: 1;
  transform: none;
  background: rgba(255, 255, 255, 0.95);
}

.feature-body {
  padding: clamp(20px, 3vw, 32px);
}

.feature-body h2 {
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  margin-bottom: 12px;
}

.feature-body p {
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 720px;
}

.feature-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 18px;
  font-size: 0.82rem;
  color: var(--muted-2);
}

.feature-stats span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 播放列表 */
.playlist {
  display: grid;
  gap: 6px;
}

.playlist-item {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 13px;
  align-items: center;
  padding: 9px;
  border-radius: var(--r-md);
  transition: background 0.3s var(--ease);
}

.playlist-item:hover {
  background: var(--bg-2);
}

.playlist-item img {
  width: 78px;
  height: 56px;
  border-radius: 12px;
  object-fit: cover;
}

.playlist-item b {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.playlist-item i {
  font-style: normal;
  font-size: 0.72rem;
  color: var(--muted-2);
}

.playlist-item--playing {
  background: var(--brand-100);
}

.playlist-item--playing b {
  color: var(--brand-700);
}

/* 三步上手 */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.6vw, 28px);
  counter-reset: step;
}

.step-item {
  position: relative;
  padding: 28px 24px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
}

.step-item:hover {
  transform: translateY(-6px);
  border-color: var(--brand-200);
  box-shadow: var(--sh-md);
}

.step-num {
  counter-increment: step;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--grad-brand);
  color: #fff;
  font-weight: 800;
  font-size: 1.05rem;
  box-shadow: var(--sh-brand);
  margin-bottom: 18px;
}

.step-num::before {
  content: "0" counter(step);
}

.step-item h3 {
  font-size: 1.06rem;
  margin-bottom: 8px;
}

.step-item p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* 下载平台按钮 */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.platform-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--r-md);
  background: #fff;
  border: 1.5px solid var(--line-2);
  text-align: left;
  transition: all 0.3s var(--ease);
}

.platform-btn:hover {
  border-color: var(--brand);
  transform: translateY(-3px);
  box-shadow: var(--sh-md);
}

.platform-btn b {
  display: block;
  font-size: 0.96rem;
  color: var(--ink);
  line-height: 1.3;
}

.platform-btn i {
  font-style: normal;
  font-size: 0.75rem;
  color: var(--muted-2);
}

.platform-btn svg {
  color: var(--ink);
}

/* 规格表 */
.spec-list {
  display: grid;
  gap: 0;
}

.spec-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
  padding: 15px 0;
  border-bottom: 1px dashed var(--line-2);
  font-size: 0.9rem;
}

.spec-row:last-child {
  border-bottom: 0;
}

.spec-row span:first-child {
  color: var(--muted);
}

.spec-row span:last-child {
  color: var(--ink);
  font-weight: 600;
  text-align: right;
}

/* 深度文章正文 */
.prose {
  max-width: 780px;
}

.prose > * + * {
  margin-top: 18px;
}

.prose p {
  color: var(--ink-2);
  font-size: 1rem;
  line-height: 1.9;
}

.prose h2 {
  margin-top: 40px;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
}

.prose h3 {
  margin-top: 30px;
  font-size: 1.12rem;
}

.prose blockquote {
  margin: 26px 0;
  padding: 20px 26px;
  border-left: 4px solid var(--brand);
  background: var(--bg-2);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  color: var(--ink-2);
  font-size: 1rem;
}

.prose ul {
  padding-left: 0;
  display: grid;
  gap: 11px;
}

.prose ul li {
  position: relative;
  padding-left: 28px;
  color: var(--ink-2);
  font-size: 0.96rem;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--grad-brand);
}

.prose figure {
  margin: 30px 0 0;
}

.prose figure img {
  width: 100%;
  border-radius: var(--r-lg);
}

.prose figcaption {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--muted-2);
  text-align: center;
}

/* 小贴士卡片 */
.tip-card {
  display: flex;
  gap: 16px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand);
  border-radius: var(--r-md);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.tip-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-md);
}

.tip-card b {
  display: block;
  font-size: 1rem;
  color: var(--ink);
  margin-bottom: 6px;
}

.tip-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

.tip-index {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--brand-100);
  color: var(--brand-700);
  font-weight: 800;
  font-size: 0.88rem;
  flex: none;
}

/* 标签云 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.tag-cloud a {
  padding: 9px 16px;
  border-radius: var(--r-pill);
  background: #fff;
  border: 1px solid var(--line-2);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink-2);
  transition: all 0.3s var(--ease);
}

.tag-cloud a:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
  transform: translateY(-2px);
}

.tag-cloud a[data-size="lg"] {
  font-size: 1rem;
  padding: 11px 20px;
}

.tag-cloud a[data-size="xl"] {
  font-size: 1.12rem;
  padding: 13px 24px;
  background: var(--brand-100);
  border-color: var(--brand-200);
  color: var(--brand-700);
}

/* 评论区 */
.comment {
  display: flex;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--line-2);
}

.comment:last-child {
  border-bottom: 0;
}

.comment-body {
  flex: 1;
}

.comment-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.comment-head b {
  font-size: 0.92rem;
  color: var(--ink);
}

.comment-head i {
  font-style: normal;
  font-size: 0.75rem;
  color: var(--muted-2);
}

.comment-body p {
  color: var(--ink-2);
  font-size: 0.92rem;
}

.comment-actions {
  display: flex;
  gap: 18px;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--muted-2);
}

.comment-actions button,
.comment-actions a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.comment-actions button:hover,
.comment-actions a:hover {
  color: var(--brand-700);
}

/* 联系卡片 */
.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: all 0.35s var(--ease);
}

.contact-card:hover {
  border-color: var(--brand-200);
  transform: translateY(-4px);
  box-shadow: var(--sh-sm);
}

.contact-card b {
  display: block;
  font-size: 0.95rem;
  color: var(--ink);
}

.contact-card span {
  font-size: 0.84rem;
  color: var(--muted);
}

/* 话题卡缩略图 */
.topic-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--bg-2);
}

.topic-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.topic-card:hover .topic-thumb img {
  transform: scale(1.06);
}

.topic-thumb .tag {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 2;
}

.thumb-heat {
  position: absolute;
  right: 12px;
  top: 12px;
  z-index: 2;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  background: rgba(13, 11, 18, 0.72);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  backdrop-filter: blur(4px);
}

/* 使用场景卡 */
.scene-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
}

.scene-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-200);
  box-shadow: var(--sh-md);
}

.scene-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.scene-body {
  padding: 22px 24px 26px;
}

.scene-body b {
  display: block;
  font-size: 1.04rem;
  color: var(--ink);
  font-weight: 700;
}

.scene-body p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.89rem;
}

/* 锚点区块留白 */
.anchor-block {
  scroll-margin-top: 130px;
}

/* 主内容 + 侧栏栅格（响应式，勿用内联 grid-template-columns 覆盖） */
.grid-side {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

@media (max-width: 960px) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-side {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 680px) {
  .steps,
  .platform-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .spec-row {
    justify-content: flex-start;
  }

  .spec-row span:last-child {
    text-align: left;
  }
}