/* ============================================================
   短剧创作系统 · 官网
   深色专业风格,呼应桌面 App 的视觉语言
   ============================================================ */

:root {
  color-scheme: dark;
  --bg: #07080c;
  --bg-1: #0b0d13;
  --surface: #11131a;
  --surface-2: #161922;
  --line: #1f2330;
  --line-soft: #181b24;
  --txt: #f4f6fb;
  --txt-2: #aab1c0;
  --txt-3: #767d8e;
  --txt-4: #565d6c;
  --accent: #6f76ff;
  --accent-2: #8b8dff;
  --accent-soft: rgba(111, 118, 255, 0.14);
  --ok: #36d399;
  --gold: #f4c45a;
  --radius: 16px;
  --radius-sm: 11px;
  --maxw: 1200px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Menlo", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--txt);
  line-height: 1.6;
  font-size: 16px;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 背景光晕 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(111, 118, 255, 0.16), transparent 60%),
    radial-gradient(800px 600px at 100% 8%, rgba(139, 92, 246, 0.1), transparent 55%),
    radial-gradient(700px 500px at 85% 100%, rgba(80, 120, 255, 0.08), transparent 60%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 70%);
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- 通用排版 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
}

h1,
h2,
h3 {
  letter-spacing: -0.02em;
  line-height: 1.12;
  font-weight: 700;
}

.section {
  padding: 110px 0;
  position: relative;
}
.section-head {
  max-width: 700px;
  margin-bottom: 52px;
}
/* 统一所有区块大标题字号,避免忽大忽小 */
.section-head h2,
.split h2,
.cta-band h2 {
  font-size: clamp(25px, 2.7vw, 34px);
  margin-bottom: 14px;
}
.section-head p {
  color: var(--txt-2);
  font-size: 16px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: 11px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease,
    border-color 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(111, 118, 255, 0.7),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -10px rgba(111, 118, 255, 0.85),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line);
  color: var(--txt);
}
.btn-ghost:hover {
  border-color: #2b3040;
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-2px);
}
.btn-sm {
  height: 38px;
  padding: 0 16px;
  font-size: 14px;
}

/* ---------- 头部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.25s ease, border-color 0.25s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(7, 8, 12, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--line-soft);
}
.header-inner {
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 700;
  font-size: 16px;
}
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, var(--accent-2), var(--accent));
  box-shadow: 0 6px 18px -6px rgba(111, 118, 255, 0.8),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  flex: none;
}
.brand-mark svg {
  width: 17px;
  height: 17px;
  color: #fff;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.site-nav a {
  font-size: 14.5px;
  color: var(--txt-2);
  transition: color 0.15s ease;
}
.site-nav a:hover {
  color: var(--txt);
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 76px 0 60px;
  text-align: center;
}
.hero .pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px 6px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  font-size: 13px;
  color: var(--txt-2);
  margin-bottom: 30px;
}
.hero .pill b {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--accent-2);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 3px 9px;
  font-weight: 600;
}
.hero h1 {
  font-size: clamp(38px, 5.2vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}
.hero h1 .grad {
  background: linear-gradient(110deg, #fff 10%, var(--accent-2) 60%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-lede {
  max-width: 640px;
  margin: 0 auto 14px;
  font-size: clamp(16px, 1.7vw, 19px);
  color: var(--txt-2);
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin: 32px 0 26px;
  flex-wrap: wrap;
}
/* 流程链 */
.pipeline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 10px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
}
.pipeline span {
  font-size: 13.5px;
  color: var(--txt-2);
  padding: 5px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line-soft);
}
.pipeline i {
  color: var(--txt-4);
  font-style: normal;
  padding: 0 2px;
}

/* Hero 产品图 */
.hero-shot {
  margin: 64px auto 0;
  max-width: 1080px;
  position: relative;
}
.hero-shot::before {
  content: "";
  position: absolute;
  inset: -8% -4% 0;
  background: radial-gradient(60% 60% at 50% 0%, rgba(111, 118, 255, 0.28), transparent 70%);
  filter: blur(20px);
  z-index: -1;
}
.browser-frame {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg-1);
  overflow: hidden;
  box-shadow: 0 50px 120px -40px rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(255, 255, 255, 0.02), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.browser-bar {
  height: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.015);
}
.browser-bar .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2c3040;
}
.browser-bar .dot.r {
  background: #ff5f57;
}
.browser-bar .dot.y {
  background: #febc2e;
}
.browser-bar .dot.g {
  background: #28c840;
}
.browser-bar .addr {
  margin-left: 14px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--txt-4);
}
.browser-frame img {
  width: 100%;
  display: block;
}

/* ---------- 信任条 / 模型条 ---------- */
.trust {
  padding: 8px 0 50px;
}
.trust p {
  text-align: center;
  color: var(--txt-3);
  font-size: 15px;
  margin-bottom: 22px;
}
.trust-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.trust-row .chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--surface);
  font-size: 14px;
  color: var(--txt-2);
}
.trust-row .chip b {
  color: var(--txt);
  font-weight: 600;
}
.trust-row .chip .led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 10px 1px rgba(54, 211, 153, 0.6);
}

/* ---------- 区块标题 kicker ---------- */
.section-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}

/* ---------- 工作流 stepper ---------- */
.workflow {
  background: linear-gradient(180deg, transparent, rgba(111, 118, 255, 0.03), transparent);
}
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.step {
  position: relative;
  padding: 26px 20px 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.step:hover {
  transform: translateY(-4px);
  border-color: #2a2f40;
  background: var(--surface-2);
}
.step .idx {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent-2);
  background: var(--accent-soft);
  border: 1px solid rgba(111, 118, 255, 0.25);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.step p {
  font-size: 13.5px;
  color: var(--txt-3);
  line-height: 1.55;
}

/* ---------- 工作台展示 ---------- */
.workbench-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 40px;
  align-items: center;
}
.shot-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-1);
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.85);
  position: relative;
}
.shot-card .browser-bar {
  background: rgba(255, 255, 255, 0.02);
}
.module-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.module {
  padding: 20px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.module:hover {
  border-color: #2a2f40;
  transform: translateX(4px);
}
.module .k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-2);
}
.module h3 {
  font-size: 16px;
  margin: 7px 0 6px;
}
.module p {
  font-size: 13.5px;
  color: var(--txt-3);
}

/* ---------- 人物库 CSS 还原卡片 ---------- */
.char-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 8px;
}
.char-card {
  display: flex;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  align-items: flex-start;
}
.char-card.sel {
  border-color: rgba(111, 118, 255, 0.55);
  box-shadow: 0 0 0 1px rgba(111, 118, 255, 0.35),
    0 18px 40px -22px rgba(111, 118, 255, 0.5);
}
.char-avatar {
  width: 64px;
  height: 80px;
  border-radius: 9px;
  flex: none;
  background: linear-gradient(160deg, #20242f, #14161d);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--txt-4);
  overflow: hidden;
}
.char-avatar svg {
  width: 26px;
  height: 26px;
}
.char-meta h4 {
  font-size: 15px;
  margin-bottom: 7px;
}
.char-tag {
  display: inline-block;
  font-size: 11.5px;
  color: var(--txt-2);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 2px 8px;
  margin-bottom: 8px;
}
.char-desc {
  font-size: 12.5px;
  color: var(--txt-3);
  line-height: 1.55;
}
.char-state {
  margin-top: 9px;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ok);
}
.char-state::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 8px 1px rgba(54, 211, 153, 0.55);
}
.char-state.todo {
  color: var(--txt-4);
}
.char-state.todo::before {
  background: var(--txt-4);
  box-shadow: none;
}

/* ---------- 模型编排棋盘 ---------- */
.orchestration {
  background: linear-gradient(180deg, transparent, rgba(139, 92, 246, 0.04), transparent);
}
.board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.node {
  padding: 24px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.node:hover {
  transform: translateY(-4px);
  border-color: #2a2f40;
}
.node .role {
  font-size: 12.5px;
  color: var(--accent-2);
}
.node h3 {
  font-size: 17px;
  margin: 8px 0 9px;
}
.node p {
  font-size: 13px;
  color: var(--txt-3);
  line-height: 1.55;
}
.node.lead {
  grid-column: span 1;
  background: linear-gradient(140deg, rgba(111, 118, 255, 0.13), var(--surface) 60%);
  border-color: rgba(111, 118, 255, 0.4);
}
.node.lead .role {
  color: var(--accent-2);
}
.node.lead h3 {
  font-size: 17px;
}

/* ---------- 云端资源 split ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.split h2 {
  margin-bottom: 14px;
}
.split > div > p {
  color: var(--txt-2);
  font-size: 16px;
}
.cloud-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cloud-stack .row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.cloud-stack .row span {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent-2);
  border: 1px solid rgba(111, 118, 255, 0.25);
  background: var(--accent-soft);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: none;
}
.cloud-stack .row strong {
  display: block;
  font-size: 15px;
  margin-bottom: 3px;
}
.cloud-stack .row small {
  color: var(--txt-3);
  font-size: 13px;
}

/* ---------- 团队网格 ---------- */
.audience {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.audience article {
  padding: 26px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.audience article:hover {
  border-color: #2a2f40;
  transform: translateY(-4px);
}
.audience h3 {
  font-size: 17px;
  margin-bottom: 9px;
}
.audience p {
  font-size: 13.5px;
  color: var(--txt-3);
}

/* ---------- CTA band ---------- */
.cta-band {
  margin: 40px auto 0;
  text-align: center;
  padding: 70px 40px;
  border: 1px solid rgba(111, 118, 255, 0.3);
  border-radius: 24px;
  background: radial-gradient(80% 140% at 50% 0%, rgba(111, 118, 255, 0.18), var(--surface) 70%);
  position: relative;
  overflow: hidden;
}
.cta-band h2 {
  margin-bottom: 12px;
}
.cta-band p {
  color: var(--txt-2);
  font-size: 17px;
  margin-bottom: 28px;
}
.cta-band .hero-actions {
  margin-bottom: 0;
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 46px 0 40px;
  margin-top: 110px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-inner .brand {
  font-size: 15px;
}
.footer-meta {
  color: var(--txt-4);
  font-size: 13px;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  color: var(--txt-3);
  font-size: 14px;
}
.footer-links a:hover {
  color: var(--txt);
}

/* ---------- 滚动揭示动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .board {
    grid-template-columns: repeat(2, 1fr);
  }
  .node.lead {
    grid-column: span 1;
  }
  .audience {
    grid-template-columns: repeat(2, 1fr);
  }
  .workbench-layout,
  .split {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .site-nav {
    display: none;
  }
}
@media (max-width: 560px) {
  .wrap {
    padding: 0 18px;
  }
  .section {
    padding: 78px 0;
  }
  .steps,
  .board,
  .audience,
  .char-showcase {
    grid-template-columns: 1fr;
  }
  .node.lead {
    grid-column: span 1;
  }
  .header-cta .btn-ghost {
    display: none;
  }
  .cta-band {
    padding: 50px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}