/* ==========================================================================
   司机社 SIJISHE — 影视传媒 & 短视频内容厂牌
   全站样式  |  设计语言：暗场胶片 × 编辑排版 × 电光橙
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --ink: #0b0c10;
  --ink-2: #121319;
  --ink-3: #191b23;
  --paper: #f7f6f2;
  --paper-2: #ffffff;
  --text: #14151a;
  --text-soft: #5d616e;
  --on-dark: #f5f5f7;
  --on-dark-soft: #a2a6b4;
  --accent: #ff5a1f;
  --accent-deep: #e0430a;
  --accent-soft: #ffe9df;
  --amber: #ffb020;
  --line: rgba(20, 21, 26, 0.1);
  --line-dark: rgba(255, 255, 255, 0.1);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-1: 0 2px 6px rgba(11, 12, 16, 0.05), 0 14px 34px rgba(11, 12, 16, 0.07);
  --shadow-2: 0 6px 16px rgba(11, 12, 16, 0.08), 0 26px 60px rgba(11, 12, 16, 0.13);
  --font-display: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --container: 1200px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

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

body.nav-open { overflow: hidden; }

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

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.18;
  margin: 0;
  letter-spacing: -0.015em;
}

p { margin: 0; }

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

button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  z-index: 999;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
}
.skip-link:focus { left: 8px; }

/* ---------- 3. 布局工具 ---------- */
.container {
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

.section { padding: 104px 0; }
.section-tight { padding: 80px 0; }

.section-dark { background: var(--ink); color: var(--on-dark); }
.section-paper-2 { background: var(--paper-2); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 56px;
}
.section-head p { color: var(--text-soft); max-width: 46ch; }
.section-dark .section-head p { color: var(--on-dark-soft); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-title { font-size: clamp(30px, 4.2vw, 46px); font-weight: 800; }
.section-title em {
  font-style: normal;
  color: var(--accent);
  position: relative;
  white-space: nowrap;
}
.section-title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.28em;
  background: var(--accent-soft);
  z-index: -1;
}
.section-dark .section-title em::after { background: rgba(255, 90, 31, 0.28); }

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--accent);
}
.more-link .arr { transition: transform 0.3s var(--ease); }
.more-link:hover .arr { transform: translateX(5px); }

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.2;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn .arr { transition: transform 0.25s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 26px rgba(255, 90, 31, 0.35);
}
.btn-primary:hover {
  background: var(--accent-deep);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(255, 90, 31, 0.42);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }

.btn-ghost-light { border-color: var(--line-dark); color: var(--on-dark); }
.btn-ghost-light:hover { border-color: var(--on-dark); transform: translateY(-2px); }

.btn-light { background: var(--on-dark); color: var(--ink); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(0, 0, 0, 0.3); }

.btn-sm { padding: 11px 22px; font-size: 14px; }
.btn-lg { padding: 18px 38px; font-size: 17px; }

/* ---------- 5. 页头 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(11, 12, 16, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line-dark);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--on-dark);
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--amber));
  display: grid;
  place-items: center;
  flex: none;
  box-shadow: 0 6px 18px rgba(255, 90, 31, 0.4);
}
.brand-name {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
}
.brand-name small {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.32em;
  color: var(--on-dark-soft);
  margin-top: 4px;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--on-dark-soft);
  border-radius: 999px;
  transition: color 0.25s, background 0.25s;
}
.main-nav a:hover { color: var(--on-dark); background: rgba(255, 255, 255, 0.07); }
.main-nav a.is-active { color: var(--on-dark); background: rgba(255, 255, 255, 0.1); }
.main-nav a.is-active::after {
  content: "";
  display: block;
  width: 18px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
  margin: 3px auto 0;
}

.header-cta { flex: none; }

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--on-dark);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-extra { display: none; }

@media (max-width: 1024px) {
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .main-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: rgba(11, 12, 16, 0.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    padding: 32px 24px 48px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    overflow-y: auto;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 8px; }
  .main-nav a {
    font-size: 22px;
    font-family: var(--font-display);
    font-weight: 700;
    padding: 16px 8px;
    border-bottom: 1px solid var(--line-dark);
    border-radius: 0;
  }
  .main-nav a.is-active::after { margin: 6px 0 0; }
  .nav-extra { margin-top: 28px; display: block; }
  .nav-extra .btn { width: 100%; }
}

/* ---------- 6. 首页 Hero ---------- */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  padding: calc(var(--header-h) + 84px) 0 0;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -220px;
  right: -160px;
  width: 720px;
  height: 720px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 90, 31, 0.32), transparent 62%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 56px;
  align-items: center;
  padding-bottom: 88px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 10px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 13.5px;
  color: var(--on-dark-soft);
  margin-bottom: 26px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #37d67a;
  box-shadow: 0 0 0 4px rgba(55, 214, 122, 0.18);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(55, 214, 122, 0.25); }
  50% { box-shadow: 0 0 0 7px rgba(55, 214, 122, 0.06); }
}
.hero-badge strong { color: var(--on-dark); font-weight: 600; }

.hero h1 {
  font-size: clamp(42px, 6.2vw, 76px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 26px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent), var(--amber));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 17.5px;
  color: var(--on-dark-soft);
  max-width: 52ch;
  margin-bottom: 38px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 44px; }

.hero-trust { display: flex; align-items: center; gap: 16px; }
.hero-avatars { display: flex; }
.hero-avatars img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid var(--ink);
  object-fit: cover;
  margin-left: -12px;
}
.hero-avatars img:first-child { margin-left: 0; }
.hero-trust-text { font-size: 14px; color: var(--on-dark-soft); line-height: 1.5; }
.hero-trust-text .stars { color: var(--amber); letter-spacing: 2px; }
.hero-trust-text strong { color: var(--on-dark); }

.hero-visual { position: relative; min-height: 520px; }
.hero-media {
  position: absolute;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-2);
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease); }
.hero-media:hover img { transform: scale(1.05); }
.hero-media.main {
  top: 0;
  right: 0;
  width: 74%;
  height: 78%;
}
.hero-media.sub {
  bottom: 0;
  left: 0;
  width: 46%;
  height: 42%;
  border: 6px solid var(--ink);
}
.hero-media.mini {
  bottom: 8%;
  right: 4%;
  width: 30%;
  height: 32%;
  border: 6px solid var(--ink);
}
.hero-float {
  position: absolute;
  top: 6%;
  left: 2%;
  background: rgba(18, 19, 25, 0.9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line-dark);
  border-radius: 16px;
  padding: 14px 20px;
  box-shadow: var(--shadow-2);
  animation: float 5.5s ease-in-out infinite;
}
.hero-float .num {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
}
.hero-float .lbl { font-size: 12.5px; color: var(--on-dark-soft); }
.hero-float.play {
  top: auto;
  bottom: 34%;
  left: auto;
  right: 64%;
  animation-delay: 1.4s;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
}
.hero-float.play .play-ic {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  display: grid;
  place-items: center;
  flex: none;
}
.hero-float.play .lbl { color: var(--on-dark); font-size: 13px; font-weight: 600; white-space: nowrap; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- 7. 跑马灯 ---------- */
.marquee {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
  padding: 16px 0;
}
.marquee-track {
  display: flex;
  gap: 56px;
  width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  display: inline-flex;
  align-items: center;
  gap: 56px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
  white-space: nowrap;
}
.marquee-track span i { font-style: normal; color: var(--accent); }
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- 8. 数据条 ---------- */
.stats-band { background: var(--ink); color: var(--on-dark); border-bottom: 1px solid var(--line-dark); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  padding: 48px 0;
}
.stat { text-align: center; padding: 8px 12px; position: relative; }
.stat + .stat::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 14%;
  height: 72%;
  width: 1px;
  background: var(--line-dark);
}
.stat .num {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.stat .num i { font-style: normal; color: var(--accent); font-size: 0.6em; margin-left: 2px; }
.stat .lbl { font-size: 13.5px; color: var(--on-dark-soft); margin-top: 4px; }

/* ---------- 9. 通用卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); border-color: rgba(255, 90, 31, 0.35); }

.feature-card { position: relative; overflow: hidden; }
.feature-card .idx {
  position: absolute;
  top: 18px;
  right: 24px;
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(20, 21, 26, 0.14);
  line-height: 1;
}
.feature-ic {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 24px;
}
.feature-card h3 { font-size: 21px; margin-bottom: 12px; }
.feature-card p { color: var(--text-soft); font-size: 15px; }
.feature-card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag {
  font-size: 12.5px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--text-soft);
}

/* 服务卡片 */
.service-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.service-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.service-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.service-card:hover .service-media img { transform: scale(1.07); }
.service-media .service-no {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(11, 12, 16, 0.75);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: #fff;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 6px 13px;
  border-radius: 999px;
}
.service-body { padding: 28px 28px 30px; display: flex; flex-direction: column; flex: 1; }
.service-body h3 { font-size: 20.5px; margin-bottom: 10px; }
.service-body > p { color: var(--text-soft); font-size: 14.5px; margin-bottom: 18px; }
.service-list { display: grid; gap: 9px; margin-bottom: 24px; }
.service-list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14.5px;
  color: var(--text-soft);
}
.service-list li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-2px);
}
.service-body .more-link { margin-top: auto; font-size: 14.5px; }

/* 作品卡片 */
.work-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 4 / 3;
  display: block;
}
.work-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease), opacity 0.4s;
}
.work-card:hover img { transform: scale(1.07); opacity: 0.72; }
.work-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  background: linear-gradient(180deg, transparent 40%, rgba(11, 12, 16, 0.88));
  color: #fff;
}
.work-cat {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  margin-bottom: 12px;
}
.work-title { font-family: var(--font-display); font-size: 19px; font-weight: 700; }
.work-meta { font-size: 13.5px; color: rgba(255, 255, 255, 0.72); margin-top: 4px; }
.work-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.6);
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: rgba(255, 90, 31, 0.95);
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity 0.35s, transform 0.35s var(--ease);
}
.work-card:hover .work-play { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* 评价卡片 */
.quote-card { position: relative; }
.quote-card .qmark {
  position: absolute;
  top: 22px;
  right: 26px;
  font-family: Georgia, serif;
  font-size: 84px;
  line-height: 1;
  color: var(--accent-soft);
}
.quote-stars { color: var(--amber); letter-spacing: 3px; font-size: 15px; margin-bottom: 16px; }
.quote-card blockquote {
  margin: 0 0 26px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--text);
  position: relative;
  z-index: 1;
}
.quote-person { display: flex; align-items: center; gap: 14px; }
.quote-person img { width: 50px; height: 50px; border-radius: 50%; object-fit: cover; }
.quote-person .name { font-weight: 700; font-size: 15px; }
.quote-person .role { font-size: 13px; color: var(--text-soft); }

/* ---------- 10. 分栏图文 ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}
.split-media { position: relative; }
.split-media .ph-main {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-2);
  aspect-ratio: 4 / 3.4;
}
.split-media .ph-main img { width: 100%; height: 100%; object-fit: cover; }
.split-media .ph-sub {
  position: absolute;
  bottom: -34px;
  right: -20px;
  width: 46%;
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  border: 7px solid var(--paper);
  box-shadow: var(--shadow-2);
}
.split-media .ph-sub img { width: 100%; height: 100%; object-fit: cover; }
.split-media .exp-badge {
  position: absolute;
  top: -22px;
  left: -18px;
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  display: grid;
  place-items: center;
  text-align: center;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
  box-shadow: var(--shadow-2);
}
.split-media .exp-badge b { display: block; font-size: 26px; color: var(--accent); }

.check-list { display: grid; gap: 14px; margin: 30px 0 36px; }
.check-list li { display: flex; gap: 14px; align-items: flex-start; }
.check-list .ck {
  flex: none;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
}
.check-list b { display: block; font-size: 16px; }
.check-list span { font-size: 14.5px; color: var(--text-soft); }

/* ---------- 11. 页面 Hero（内页） ---------- */
.page-hero {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  padding: calc(var(--header-h) + 90px) 0 84px;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -260px;
  left: 50%;
  transform: translateX(-50%);
  width: 860px;
  height: 560px;
  background: radial-gradient(ellipse, rgba(255, 90, 31, 0.26), transparent 65%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; max-width: 860px; text-align: center; }
.page-hero h1 { font-size: clamp(36px, 5.4vw, 62px); font-weight: 800; margin-bottom: 22px; }
.page-hero h1 em { font-style: normal; background: linear-gradient(100deg, var(--accent), var(--amber)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-hero .lead { color: var(--on-dark-soft); font-size: 17.5px; max-width: 62ch; margin-inline: auto; }
.breadcrumb {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-size: 13.5px;
  color: var(--on-dark-soft);
  margin-bottom: 24px;
}
.breadcrumb a:hover { color: var(--on-dark); }
.breadcrumb .sep { color: var(--accent); }

/* ---------- 12. 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: step; position: relative; }
.steps::before {
  content: "";
  position: absolute;
  top: 31px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--line) 0 10px, transparent 10px 20px);
}
.step { position: relative; text-align: center; padding: 0 14px; }
.step .step-ic {
  position: relative;
  z-index: 1;
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--paper-2);
  border: 2px solid var(--line);
  color: var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  transition: all 0.3s var(--ease);
}
.step:hover .step-ic { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-4px); }
.step h3 { font-size: 17.5px; margin-bottom: 8px; }
.step p { font-size: 13.8px; color: var(--text-soft); }

/* ---------- 13. 方案卡 ---------- */
.plan-card { display: flex; flex-direction: column; }
.plan-card.hot { background: var(--ink); color: var(--on-dark); border-color: var(--ink); }
.plan-card.hot .plan-desc { color: var(--on-dark-soft); }
.plan-badge {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  margin-bottom: 18px;
}
.plan-card h3 { font-size: 22px; margin-bottom: 8px; }
.plan-desc { font-size: 14px; color: var(--text-soft); margin-bottom: 22px; }
.plan-price { font-family: var(--font-display); font-size: 34px; font-weight: 700; margin-bottom: 4px; }
.plan-price i { font-style: normal; font-size: 15px; font-weight: 500; color: var(--text-soft); }
.plan-card.hot .plan-price i { color: var(--on-dark-soft); }
.plan-feats { display: grid; gap: 12px; margin: 26px 0 32px; }
.plan-feats li { display: flex; gap: 10px; font-size: 14.5px; align-items: baseline; }
.plan-feats li::before { content: "✓"; color: var(--accent); font-weight: 800; }
.plan-card .btn { margin-top: auto; width: 100%; }

/* ---------- 14. FAQ ---------- */
.faq-list { max-width: 860px; margin-inline: auto; display: grid; gap: 14px; }
.faq-item {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.faq-item.open { border-color: rgba(255, 90, 31, 0.4); box-shadow: var(--shadow-1); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  text-align: left;
  background: none;
  border: 0;
  padding: 22px 26px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}
.faq-q .faq-ic {
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 600;
  transition: transform 0.3s var(--ease), background 0.3s, color 0.3s;
}
.faq-item.open .faq-ic { transform: rotate(45deg); background: var(--accent); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.faq-a p { padding: 0 26px 24px; color: var(--text-soft); font-size: 15px; }

/* ---------- 15. 筛选栏（作品集） ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.filter-btn {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--paper-2);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-soft);
  transition: all 0.25s var(--ease);
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); transform: translateY(-2px); }
.filter-btn.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.works-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.work-card.hide { display: none; }
.works-empty {
  text-align: center;
  color: var(--text-soft);
  padding: 60px 0;
  display: none;
}

/* ---------- 16. 团队 / 时间轴 / 价值观 ---------- */
.value-card { text-align: left; }
.value-card .vc-ic {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--ink);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.value-card h3 { font-size: 19px; margin-bottom: 10px; }
.value-card p { color: var(--text-soft); font-size: 14.5px; }

.team-card { text-align: center; padding: 0; overflow: hidden; }
.team-card .tm-photo { aspect-ratio: 1; overflow: hidden; }
.team-card .tm-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); filter: grayscale(28%); }
.team-card:hover .tm-photo img { transform: scale(1.06); filter: grayscale(0); }
.team-card .tm-body { padding: 22px 20px 26px; }
.team-card .tm-name { font-family: var(--font-display); font-size: 18px; font-weight: 700; }
.team-card .tm-role { font-size: 13.5px; color: var(--accent); font-weight: 600; margin-top: 4px; }
.team-card .tm-bio { font-size: 13.5px; color: var(--text-soft); margin-top: 10px; }

.timeline { position: relative; max-width: 760px; margin-inline: auto; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--accent), var(--line));
}
.tl-item { position: relative; padding-bottom: 40px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--paper);
  border: 4px solid var(--accent);
}
.tl-year { font-family: var(--font-display); font-size: 15px; font-weight: 700; color: var(--accent); letter-spacing: 0.06em; }
.tl-item h3 { font-size: 19px; margin: 6px 0 8px; }
.tl-item p { color: var(--text-soft); font-size: 15px; }

/* ---------- 17. 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 32px; align-items: start; }

.form-card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; }
.form-card h2 { font-size: 26px; margin-bottom: 6px; }
.form-card > p { color: var(--text-soft); font-size: 14.5px; margin-bottom: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 700; }
.field label span { color: var(--accent); }
.field input,
.field textarea,
.field select {
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  transition: border-color 0.25s, box-shadow 0.25s;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.12);
}
.field .err { font-size: 12.5px; color: #d92d20; display: none; }
.field.invalid input,
.field.invalid textarea { border-color: #d92d20; }
.field.invalid .err { display: block; }
.form-note { font-size: 12.5px; color: var(--text-soft); margin-top: 14px; }
.form-success {
  display: none;
  align-items: center;
  gap: 12px;
  background: #e8f7ee;
  border: 1px solid #b7e4c7;
  color: #14683a;
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-size: 14.5px;
  font-weight: 600;
  margin-top: 18px;
}
.form-success.show { display: flex; }

.info-card { background: var(--ink); color: var(--on-dark); border-radius: var(--radius); padding: 36px 32px; }
.info-card h2 { font-size: 22px; margin-bottom: 8px; }
.info-card > p { color: var(--on-dark-soft); font-size: 14px; margin-bottom: 26px; }
.info-list { display: grid; gap: 22px; margin-bottom: 30px; }
.info-list li { display: flex; gap: 16px; align-items: flex-start; }
.info-list .ic {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line-dark);
  color: var(--accent);
  display: grid;
  place-items: center;
}
.info-list .k { font-size: 12.5px; color: var(--on-dark-soft); letter-spacing: 0.06em; }
.info-list .v { font-weight: 600; font-size: 15px; }
.info-list .v a:hover { color: var(--accent); }
.info-card .worktime { font-size: 13px; color: var(--on-dark-soft); border-top: 1px solid var(--line-dark); padding-top: 20px; }

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  position: relative;
}
.map-wrap iframe { width: 100%; height: 420px; border: 0; display: block; filter: grayscale(60%) contrast(1.05); }

/* ---------- 18. 社交按钮 ---------- */
.social-row { display: flex; flex-wrap: wrap; gap: 12px; }
.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: var(--paper-2);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s var(--ease);
}
.social-btn:hover { border-color: var(--ink); transform: translateY(-2px); box-shadow: var(--shadow-1); }
.social-btn svg { width: 17px; height: 17px; }
.social-btn.on-dark { background: rgba(255, 255, 255, 0.06); border-color: var(--line-dark); color: var(--on-dark); }
.social-btn.on-dark:hover { border-color: var(--on-dark); }

/* ---------- 19. CTA 横幅 ---------- */
.cta-band {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  overflow: hidden;
}
.cta-band .cta-bg {
  position: absolute;
  inset: 0;
}
.cta-band .cta-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.22; }
.cta-band .cta-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11, 12, 16, 0.94) 30%, rgba(11, 12, 16, 0.55));
}
.cta-inner {
  position: relative;
  z-index: 2;
  padding: 104px 0;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}
.cta-inner h2 { font-size: clamp(30px, 4.4vw, 50px); font-weight: 800; margin-bottom: 18px; }
.cta-inner h2 em { font-style: normal; background: linear-gradient(100deg, var(--accent), var(--amber)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cta-inner p { color: var(--on-dark-soft); max-width: 48ch; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: flex-end; }
.cta-phone {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 18px;
  color: var(--on-dark-soft);
  font-size: 14px;
}
.cta-phone b { font-family: var(--font-display); font-size: 20px; color: var(--on-dark); letter-spacing: 0.04em; white-space: nowrap; }

/* ---------- 20. 页脚 ---------- */
.site-footer { background: var(--ink); color: var(--on-dark); border-top: 1px solid var(--line-dark); }
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding: 72px 0 56px;
}
.footer-brand p { color: var(--on-dark-soft); font-size: 14.5px; margin: 18px 0 24px; max-width: 34ch; }
.footer-col h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-dark);
  margin-bottom: 20px;
}
.footer-col ul { display: grid; gap: 12px; }
.footer-col a { color: var(--on-dark-soft); font-size: 14.5px; transition: color 0.2s, padding-left 0.2s; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; color: var(--on-dark-soft); font-size: 14.5px; align-items: flex-start; }
.footer-contact svg { flex: none; margin-top: 4px; color: var(--accent); }
.footer-contact a { color: var(--on-dark-soft); }
.footer-contact a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--on-dark-soft);
}
.footer-bottom .links { display: flex; gap: 22px; }
.footer-bottom a:hover { color: var(--on-dark); }

/* ---------- 21. 滚动动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee-track, .hero-float { animation: none !important; }
}

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(5, 1fr); gap: 8px; }
  .step p { display: none; }
  .step h3 { font-size: 15px; }
}

@media (max-width: 960px) {
  .section { padding: 76px 0; }
  .section-head { grid-template-columns: 1fr; align-items: start; gap: 14px; margin-bottom: 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 52px; padding-bottom: 64px; }
  .hero-visual { min-height: 0; aspect-ratio: 4 / 3; order: -1; }
  .hero-media.main { width: 82%; height: 100%; }
  .hero-media.sub { width: 44%; height: 40%; }
  .hero-media.mini { display: none; }
  .hero-float.play { right: auto; left: 62%; bottom: 30%; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 36px 0; }
  .stat + .stat::before { display: none; }
  .grid-3, .works-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 56px; }
  .split-media .ph-sub { right: 0; bottom: -28px; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .steps::before { display: none; }
  .step p { display: block; }
  .cta-inner { grid-template-columns: 1fr; padding: 80px 0; }
  .cta-actions, .cta-phone { justify-content: flex-start; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; padding: 56px 0 40px; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 40px, var(--container)); }
  .grid-3, .grid-4, .grid-2, .works-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .hero { padding-top: calc(var(--header-h) + 48px); }
  .hero h1 { font-size: clamp(36px, 10vw, 46px); }
  .hero-actions .btn { width: 100%; }
  .form-card { padding: 26px 22px; }
  .form-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 28px; }
  .step { display: grid; grid-template-columns: 62px 1fr; gap: 18px; text-align: left; padding: 0; }
  .step .step-ic { margin: 0; }
  .footer-top { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .marquee-track { gap: 36px; }
  .marquee-track span { gap: 36px; }
}