/* ============================================================
   主题变量 —— 黑蓝配色（改这里即可整体换色/换风格）
   ============================================================ */
:root {
  --bg: #050912;          /* 近黑、带蓝调 */
  --bg-alt: #0a1120;
  --surface: #0e1729;
  --surface-2: #142036;
  --text: #eaf1ff;
  --muted: #8fa3c4;
  --border: #1c2c47;
  --brand: #2f6bff;       /* 主蓝 */
  --brand-2: #36d0ff;     /* 青蓝 */
  --brand-grad: linear-gradient(135deg, #2f6bff 0%, #36d0ff 100%);
  --radius: 16px;
  --maxw: 1180px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* ============================================================
   通用按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); opacity: 0.94; }
.btn--primary { background: var(--brand-grad); color: #fff; box-shadow: 0 8px 24px rgba(47, 107, 255, 0.35); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { background: var(--surface); }
.btn--lg { padding: 14px 30px; font-size: 16px; }
.btn--xl {
  padding: 18px 44px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
  border-radius: 999px;
}

/* ============================================================
   导航
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(5, 9, 18, 0.78);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav__logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; }
.logo-mark { width: 30px; height: 30px; flex: none; border-radius: 8px; box-shadow: 0 4px 14px rgba(47,107,255,0.4); }
.nav__links { display: flex; gap: 22px; margin-left: auto; font-size: 14px; }
.nav__links a { color: var(--muted); transition: color 0.15s; }
.nav__links a:hover, .nav__links a.active { color: var(--text); }
.nav__actions { display: flex; gap: 10px; }
.nav__toggle { display: none; background: none; border: 0; color: var(--text); font-size: 22px; cursor: pointer; }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(720px 420px at 72% -10%, rgba(47, 107, 255, 0.28), transparent 60%),
    radial-gradient(620px 420px at 8% 25%, rgba(54, 208, 255, 0.18), transparent 60%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 96px 24px 72px;
  text-align: center;
}
.hero__eyebrow {
  display: inline-block;
  font-size: 13px; letter-spacing: 2px;
  color: var(--brand-2);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 6px 14px; border-radius: 999px;
  margin-bottom: 22px;
}
.hero__title { font-size: clamp(32px, 6vw, 58px); font-weight: 800; line-height: 1.18; }
.hero__title .grad { background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__subtitle { color: var(--muted); max-width: 680px; margin: 20px auto 0; font-size: 17px; }
.hero__cta { display: flex; gap: 14px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }
.hero__note { margin-top: 18px; color: var(--muted); font-size: 13px; }
.hero__countdown {
  margin-top: 14px; display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 999px;
  background: rgba(20,32,54,0.6); font-size: 14px; color: var(--muted);
}
.hero__countdown .cd__item b {
  font-size: 18px; font-weight: 800; color: var(--brand-2);
  font-variant-numeric: tabular-nums; margin: 0 2px;
}
.hero__countdown .cd__sep { color: var(--border); font-weight: 700; }
.hero__countdown .cd__label { margin-left: 6px; color: var(--muted); }
.hero__stats {
  display: flex; gap: 36px; justify-content: center; flex-wrap: wrap;
  margin-top: 52px; padding-top: 38px;
  border-top: 1px solid var(--border);
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat__num { font-size: 40px; font-weight: 800; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat__label { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ============================================================
   通用区块
   ============================================================ */
.section { max-width: var(--maxw); margin: 0 auto; padding: 88px 24px; }
.section--alt {
  max-width: none;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section--alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section__head { text-align: center; margin-bottom: 52px; }
.section__eyebrow { color: var(--brand-2); font-size: 13px; letter-spacing: 3px; font-weight: 700; }
.section__title { font-size: clamp(26px, 4vw, 38px); font-weight: 800; margin-top: 12px; }
.section__desc { color: var(--muted); max-width: 660px; margin: 16px auto 0; }
.section__subtitle { text-align: center; font-size: 20px; font-weight: 700; margin: 56px 0 24px; }

/* ============================================================
   生产工序卡片
   ============================================================ */
.pipeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.step:hover { transform: translateY(-4px); border-color: var(--brand); }
.step__no { font-size: 30px; font-weight: 800; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.step__title { font-size: 19px; margin-top: 8px; }
.step__en { color: var(--muted); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 12px; }
.step__desc { color: var(--muted); font-size: 14.5px; }

/* ============================================================
   对比表格
   ============================================================ */
.compare {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.compare th, .compare td { padding: 18px 20px; text-align: left; border: 1px solid var(--border); font-size: 15px; vertical-align: top; }
.compare thead th { background: var(--surface-2); font-size: 16px; }
.compare thead th:first-child { color: var(--muted); font-weight: 600; }
.compare thead th.is-us { background: linear-gradient(180deg, rgba(47,107,255,0.18), transparent); color: var(--brand-2); }
.compare td:first-child { color: var(--text); font-weight: 600; width: 22%; background: var(--surface-2); }
.compare td.is-us { color: var(--brand-2); background: rgba(47,107,255,0.08); }
.compare td:not(.is-us):not(:first-child) { color: var(--muted); }
.icon-yes { color: #3ddc84; margin-right: 8px; font-size: 16px; }
.icon-no  { color: #ff5a5a; margin-right: 8px; font-size: 16px; }
.compare__note {
  margin-top: 22px; color: var(--muted); font-size: 14.5px;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--brand); border-radius: 10px; padding: 16px 18px;
}

/* ============================================================
   买断 CTA（第三屏内）
   ============================================================ */
.buyout {
  margin-top: 28px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
  background: linear-gradient(135deg, rgba(47,107,255,0.16), rgba(54,208,255,0.10));
  border: 1px solid var(--border); border-radius: 18px; padding: 26px 30px;
}
.buyout__txt h3 { font-size: 20px; margin-bottom: 6px; }
.buyout__txt p { color: var(--muted); font-size: 14px; }
.buyout__txt b { color: var(--brand-2); }

/* ============================================================
   工序演示占位（视频/截图位）
   ============================================================ */
.demo-media {
  position: relative; margin: 0 auto 48px; max-width: 880px;
  aspect-ratio: 16 / 9; border-radius: 18px; overflow: hidden;
  border: 1px solid var(--border); background:
    radial-gradient(120% 120% at 50% 0%, rgba(47,107,255,0.16), transparent 60%),
    var(--surface);
  display: grid; place-items: center;
}
.demo-media__play {
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--brand-grad); display: grid; place-items: center;
  box-shadow: 0 10px 30px rgba(47,107,255,0.45); cursor: pointer;
}
.demo-media__play::after {
  content: ''; width: 0; height: 0; margin-left: 4px;
  border-left: 20px solid #fff; border-top: 13px solid transparent; border-bottom: 13px solid transparent;
}
.demo-media__cap {
  position: absolute; bottom: 14px; left: 16px;
  color: var(--muted); font-size: 13px; background: rgba(5,9,18,0.55);
  padding: 4px 10px; border-radius: 8px;
}

/* ============================================================
   信任数据条
   ============================================================ */
.trust { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-alt); }
.trust__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 34px 24px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center;
}
.trust__item { padding: 6px 12px; }
.trust__k { font-size: 19px; font-weight: 800; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.trust__d { color: var(--muted); font-size: 13px; margin-top: 6px; }

/* ============================================================
   适用场景
   ============================================================ */
.types { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.type {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.type__tag { color: var(--brand-2); font-size: 12px; letter-spacing: 2px; font-weight: 700; }
.type__title { font-size: 18px; margin: 10px 0 10px; }
.type__desc { color: var(--muted); font-size: 14px; }

/* 三大痛点 */
.pain { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 8px; }
.pain__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.pain__card:hover { transform: translateY(-4px); border-color: var(--brand); }
.pain__no { font-size: 26px; font-weight: 800; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pain__title { font-size: 19px; margin: 8px 0 10px; }
.pain__desc { color: var(--muted); font-size: 14.5px; }

/* ============================================================
   代理合作（6 卡片，3×2 对称）
   ============================================================ */
.agent { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.agent__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.agent__card:hover { transform: translateY(-4px); border-color: var(--brand); }
.agent__k { color: var(--brand-2); font-size: 13px; font-weight: 700; letter-spacing: 1px; }
.agent__v { font-size: 20px; font-weight: 800; margin: 10px 0 8px; }
.agent__v small { font-size: 13px; font-weight: 600; color: var(--muted); }
.agent__d { color: var(--muted); font-size: 14px; }
.agent__cta { text-align: center; margin-top: 40px; }

/* ============================================================
   授权体系（4 步）
   ============================================================ */
.license { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.license__step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.license__step:hover { transform: translateY(-4px); border-color: var(--brand); }
.license__no { color: var(--brand-2); font-size: 12px; letter-spacing: 2px; font-weight: 700; }
.license__title { font-size: 19px; margin: 8px 0 10px; }
.license__desc { color: var(--muted); font-size: 14px; }

/* ============================================================
   代理意向留资表单
   ============================================================ */
.leadform { max-width: 560px; margin: 44px auto 0; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 28px 26px; text-align: center; }
.leadform__title { font-size: 20px; }
.leadform__sub { color: var(--muted); font-size: 14px; margin: 6px 0 18px; }
.leadform__sub strong, .leadform__ok strong { color: var(--brand-2); }
.leadform__row { display: flex; gap: 12px; }
.leadform__input {
  width: 100%; padding: 12px 16px; border-radius: 10px;
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text); font-size: 14px; outline: none; margin-bottom: 12px;
}
.leadform__input:focus { border-color: var(--brand); }
.leadform__ok { color: var(--brand-2); font-size: 14px; margin-top: 14px; }

/* ============================================================
   FAQ 折叠
   ============================================================ */
.faq { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 20px;
}
.faq summary {
  cursor: pointer; list-style: none;
  padding: 18px 0; font-weight: 700; font-size: 16px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand-2); font-size: 22px; transition: transform 0.2s; }
.faq details[open] summary::after { content: "−"; }
.faq__body { color: var(--muted); font-size: 14.5px; padding: 0 0 18px; }

/* ============================================================
   页脚
   ============================================================ */
.footer { border-top: 1px solid var(--border); background: var(--bg-alt); }
.footer__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 40px 24px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  text-align: center;
}
.footer__brand { display: flex; align-items: center; justify-content: center; gap: 10px; font-weight: 800; font-size: 18px; }
.footer__copy { color: var(--muted); font-size: 13px; }
.footer__links { display: flex; gap: 18px; font-size: 14px; }
.footer__links a { color: var(--muted); }
.footer__links a:hover { color: var(--text); }

/* ============================================================
   滚动渐显
   ============================================================ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   授权封闭页（第 7 天起）
   ============================================================ */
.locked {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; padding: 24px;
  background:
    radial-gradient(600px 360px at 50% 20%, rgba(47,107,255,0.22), transparent 60%),
    var(--bg);
}
.locked__logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 24px; margin-bottom: 40px; }
.locked__form { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 14px; }
.locked__input {
  width: 100%; padding: 14px 18px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); font-size: 15px; outline: none;
}
.locked__input:focus { border-color: var(--brand); }
.locked__hint { color: var(--muted); font-size: 13px; margin-top: 18px; }
.locked__hint a { color: var(--brand-2); }
.locked__err { color: #ff8585; font-size: 13px; margin: 10px 0 0; }

/* ============================================================
   代理协议文档页
   ============================================================ */
.doc { max-width: 860px; margin: 0 auto; padding: 64px 24px 96px; }
.doc__title { font-size: 30px; font-weight: 800; text-align: center; }
.doc__sub { text-align: center; color: var(--muted); margin: 10px 0 40px; }
.doc h3 { font-size: 19px; margin: 32px 0 12px; color: var(--brand-2); }
.doc p, .doc li { color: var(--muted); font-size: 15px; }
.doc ol, .doc ul { padding-left: 22px; display: flex; flex-direction: column; gap: 8px; }
.doc .back { display: inline-block; margin-top: 40px; }

/* ============================================================
   微信二维码（专页 / 封闭页共用）
   ============================================================ */
.modal__qr {
  width: 220px; height: 220px; object-fit: contain;
  margin-bottom: 14px; border-radius: 10px;
}
.modal__id { font-size: 18px; }
.modal__id strong { color: var(--brand-2); }
.modal__tip { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 900px) {
  .pipeline, .types, .agent, .pain, .license { grid-template-columns: repeat(2, 1fr); }
  .trust__inner { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .nav__links, .nav__actions, .nav__center { display: none; }
  .nav__toggle { display: block; margin-left: auto; }
  .nav__links.open {
    display: flex; flex-direction: column; gap: 14px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg); padding: 18px 24px; border-bottom: 1px solid var(--border);
  }
  .pipeline, .types, .agent, .pain, .license { grid-template-columns: 1fr; }
  .trust__inner { grid-template-columns: repeat(2, 1fr); }
  .compare { display: block; overflow-x: auto; white-space: nowrap; }
  .hero__stats { gap: 24px; }
  .buyout { flex-direction: column; align-items: flex-start; }
  .leadform__row { flex-direction: column; gap: 0; }
}