/* ============================================================
   赛小蜂赛事平台官网 · 设计系统
   品牌色：深海军蓝 #061C42 · 执行蓝 #1769E8 · 浅蓝 #CFE2FF
   ============================================================ */

:root {
  --navy-950: #04122e;
  --navy-900: #061c42;
  --navy-800: #0a2a5e;
  --navy-700: #10407f;
  --blue-600: #1769e8;
  --blue-500: #2f7df0;
  --blue-400: #4c93f5;
  --blue-100: #cfe2ff;
  --blue-50:  #eaf2fe;

  --ink-900: #0e1b34;
  --ink-700: #2a3752;
  --ink-600: #46536e;
  --ink-500: #6b7894;
  --ink-400: #93a0b8;

  --green: #16a34a;
  --green-50: #e9f8ef;
  --orange: #f59e0b;
  --orange-50: #fef3e2;
  --red: #e11d48;
  --red-50: #fde9ee;
  --purple: #7c5cfc;
  --purple-50: #f0edff;

  --bg: #f5f7fb;
  --white: #ffffff;
  --line: #e4e9f2;
  --line-soft: #edf1f7;

  --shadow-sm: 0 1px 2px rgba(6, 28, 66, 0.06), 0 1px 3px rgba(6, 28, 66, 0.05);
  --shadow-md: 0 6px 18px -6px rgba(6, 28, 66, 0.14), 0 2px 6px rgba(6, 28, 66, 0.06);
  --shadow-lg: 0 22px 48px -18px rgba(6, 28, 66, 0.28);
  --shadow-blue: 0 10px 26px -10px rgba(23, 105, 232, 0.55);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;

  --container: 1200px;
  --header-h: 92px;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink-900);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.24; color: var(--ink-900); font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }
::selection { background: var(--blue-100); color: var(--navy-900); }

/* ---------- 可访问性 ---------- */
:focus-visible { outline: 3px solid var(--blue-400); outline-offset: 2px; border-radius: 6px; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--navy-900); color: #fff; padding: 10px 16px; z-index: 999; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }

/* ---------- 按钮 ---------- */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; font-size: 15px; line-height: 1;
  padding: 14px 22px; border-radius: 12px; border: 1px solid transparent;
  cursor: pointer; text-align: center; white-space: nowrap;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, color .16s ease, border-color .16s ease;
  min-height: 46px; text-decoration: none;
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(0); }
.button.primary { background: var(--blue-600); color: #fff; box-shadow: var(--shadow-blue); }
.button.primary:hover { background: #1158cc; }
.button.ghost { background: transparent; color: var(--navy-900); border-color: var(--line); }
.button.ghost:hover { border-color: var(--blue-400); color: var(--blue-600); background: var(--blue-50); }
.button.white { background: #fff; color: var(--navy-900); box-shadow: var(--shadow-sm); }
.button.white:hover { background: var(--blue-50); }
.button.dark { background: var(--navy-900); color: #fff; }
.button.dark:hover { background: var(--navy-800); }
.button.outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
.button.outline-light:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.button.large { padding: 17px 28px; font-size: 16px; border-radius: 14px; }
.button.small { padding: 10px 16px; font-size: 14px; min-height: 40px; border-radius: 10px; }
.button.block { width: 100%; }
.button .arrow { font-weight: 700; transition: transform .16s ease; }
.button:hover .arrow { transform: translateX(3px); }
.link-button { background: none; border: 0; padding: 0; color: var(--blue-600); cursor: pointer; font-size: inherit; }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--blue-600); font-size: 15px; }
.text-link .arrow { transition: transform .16s ease; }
.text-link:hover .arrow { transform: translateX(3px); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-shell { display: flex; align-items: center; gap: 28px; height: var(--header-h); }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand img { height: 76px; width: auto; }
.main-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.main-nav > a:not(.button) {
  padding: 9px 13px; color: var(--ink-700); font-size: 15px; font-weight: 500;
  border-radius: 9px; transition: color .15s, background .15s;
}
.main-nav > a:not(.button):hover { color: var(--blue-600); background: var(--blue-50); }
.main-nav > a.active { color: var(--blue-600); font-weight: 600; }
.main-nav .nav-login { color: var(--ink-600); font-weight: 500; }
.main-nav .nav-login:hover { color: var(--navy-900); background: var(--bg); }
.nav-cta { margin-left: 6px; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 10px; }
.menu-toggle span { width: 22px; height: 2px; background: var(--navy-900); border-radius: 2px; transition: .22s ease; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1100px 520px at 12% -10%, #10407f 0%, transparent 55%),
              radial-gradient(900px 500px at 95% 0%, #0a2a5e 0%, transparent 52%),
              linear-gradient(160deg, #071f46 0%, var(--navy-900) 55%, #061736 100%);
  color: #fff;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(70% 80% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(70% 80% at 50% 0%, #000 20%, transparent 78%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; padding: 72px 24px 56px; }
.hero-copy { animation: rise .6s ease both; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue-600); margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--blue-600); border-radius: 2px; }
.eyebrow.light { color: var(--blue-100); }
.eyebrow.light::before { background: var(--blue-100); }
.eyebrow.center { justify-content: center; }
.eyebrow.center::after { content: ""; width: 22px; height: 2px; background: currentColor; border-radius: 2px; }
.hero h1 { font-size: clamp(34px, 4.4vw, 54px); line-height: 1.16; color: #fff; letter-spacing: -0.02em; font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--blue-100); }
.hero-sub { margin-top: 22px; font-size: 17.5px; line-height: 1.8; color: rgba(255,255,255,.78); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-note { display: flex; align-items: center; gap: 10px; margin-top: 26px; color: rgba(255,255,255,.62); font-size: 14px; }
.hero-note .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue-400); box-shadow: 0 0 0 4px rgba(76,147,245,.2); }
.hero-visual { position: relative; animation: rise .6s .12s ease both; }
.window {
  border-radius: 16px; overflow: hidden; background: #fff;
  box-shadow: var(--shadow-lg); border: 1px solid rgba(255,255,255,.14);
}
.window-bar { display: flex; align-items: center; gap: 6px; padding: 11px 14px; background: #f2f5fa; border-bottom: 1px solid var(--line-soft); }
.window-bar i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.window-bar i:nth-child(1){ background:#ff5f57 } .window-bar i:nth-child(2){ background:#febc2e } .window-bar i:nth-child(3){ background:#28c840 }
.window-bar .url { margin-left: 10px; flex: 1; max-width: 320px; background: #fff; border: 1px solid var(--line-soft); border-radius: 6px; font-size: 12px; color: var(--ink-500); padding: 3px 10px; font-family: ui-monospace, monospace; white-space: nowrap; overflow: hidden; }
.window img { width: 100%; height: auto; }
.float-chip {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,.97); color: var(--ink-900);
  border-radius: 13px; padding: 11px 14px; box-shadow: var(--shadow-lg);
  font-size: 13.5px; font-weight: 600; line-height: 1.3;
}
.float-chip small { display: block; font-weight: 400; color: var(--ink-500); font-size: 12px; }
.float-chip .ic { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; background: var(--blue-50); flex-shrink: 0; }
.float-chip .ic img { width: 22px; height: 22px; }
.chip-a { top: -22px; left: -26px; }
.chip-b { bottom: -20px; right: -18px; }

/* ---------- 指标条 ---------- */
.metrics-strip { border-bottom: 1px solid var(--line-soft); background: var(--white); }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.metric { display: flex; align-items: center; gap: 14px; padding: 22px 16px; }
.metric .m-ic { width: 42px; height: 42px; border-radius: 11px; background: var(--blue-50); display: grid; place-items: center; flex-shrink: 0; }
.metric .m-ic img { width: 26px; height: 26px; }
.metric strong { display: block; font-size: 22px; color: var(--navy-900); line-height: 1.1; }
.metric small { color: var(--ink-500); font-size: 13px; }

/* ---------- 通用 section ---------- */
.section { padding: 84px 0; }
.section.tight { padding: 60px 0; }
.section.alt { background: var(--bg); }
.section.dark { background: linear-gradient(165deg, var(--navy-900), #071f46); color: #fff; }
.section.dark h2, .section.dark h3 { color: #fff; }
.section.dark p { color: rgba(255,255,255,.72); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 48px; }
.section-head .lead { color: var(--ink-600); font-size: 16.5px; max-width: 460px; }
.section-head h2 { font-size: clamp(26px, 3vw, 36px); letter-spacing: -0.02em; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-head.center .lead { max-width: 640px; }

/* ---------- 痛点 ---------- */
.pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pain-card { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.pain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--blue-100); }
.pain-card .num { font-size: 13px; font-weight: 800; color: var(--blue-600); letter-spacing: .06em; }
.pain-card h3 { font-size: 17px; margin: 12px 0 10px; }
.pain-card p { color: var(--ink-600); font-size: 15px; }
.pain-card .tag { position: absolute; top: 24px; right: 24px; }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: flow; }
.flow-step { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 20px 22px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.flow-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--blue-100); }
.flow-step::after { content: "→"; position: absolute; top: 50%; right: -15px; transform: translateY(-50%); color: var(--blue-400); font-size: 18px; font-weight: 700; z-index: 2; }
.flow-step:last-child::after { display: none; }
.flow-step .n { width: 34px; height: 34px; border-radius: 10px; background: var(--blue-600); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; margin-bottom: 14px; }
.flow-step h3 { font-size: 16px; margin-bottom: 8px; }
.flow-step p { color: var(--ink-600); font-size: 13.5px; }
.flow-step a { display: inline-block; margin-top: 12px; font-size: 13.5px; font-weight: 600; color: var(--blue-600); }

/* ---------- 能力卡片 ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cap-card { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 26px; transition: transform .2s, box-shadow .2s, border-color .2s; overflow: hidden; }
.cap-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--blue-100); }
.cap-card .cap-ic { width: 52px; height: 52px; border-radius: 14px; background: var(--blue-50); display: grid; place-items: center; margin-bottom: 18px; }
.cap-card .cap-ic img { width: 32px; height: 32px; }
.cap-card h3 { font-size: 19px; margin-bottom: 10px; }
.cap-card p { color: var(--ink-600); font-size: 15px; }
.cap-card .cap-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--blue-600); }
.cap-card .cap-more .arrow { transition: transform .16s; }
.cap-card:hover .cap-more .arrow { transform: translateX(3px); }

/* ---------- 交付成果 ---------- */
.deliver-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.deliver-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.deliver-card .d-top { padding: 26px 26px 20px; }
.deliver-card .d-tag { display: inline-block; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; margin-bottom: 14px; }
.deliver-card h3 { font-size: 18px; margin-bottom: 8px; }
.deliver-card p { color: var(--ink-600); font-size: 14.5px; }
.deliver-card .d-shot { border-top: 1px solid var(--line-soft); background: var(--bg); }
.deliver-card .d-shot img { width: 100%; height: auto; }
.tag-blue { background: var(--blue-50); color: var(--blue-600); }
.tag-green { background: var(--green-50); color: var(--green); }
.tag-purple { background: var(--purple-50); color: var(--purple); }
.tag-orange { background: var(--orange-50); color: #b45309; }
.tag-red { background: var(--red-50); color: var(--red); }

/* ---------- 适用场景 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.scene-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 18px; text-align: center; transition: transform .2s, border-color .2s, box-shadow .2s; }
.scene-card:hover { transform: translateY(-4px); border-color: var(--blue-100); box-shadow: var(--shadow-md); }
.scene-card .s-ic { width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 13px; background: var(--blue-50); display: grid; place-items: center; }
.scene-card .s-ic img { width: 28px; height: 28px; }
.scene-card h3 { font-size: 16px; }
.scene-card p { color: var(--ink-500); font-size: 13px; margin-top: 6px; }

/* ---------- 信任模块 ---------- */
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.trust-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; }
.trust-card .t-ic { width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; margin-bottom: 16px; }
.trust-card .t-ic img { width: 30px; height: 30px; }
.trust-card h3 { font-size: 18px; margin-bottom: 8px; }
.trust-card p { color: var(--ink-600); font-size: 14.5px; }

/* ---------- CTA ---------- */
.cta-band { padding: 72px 0; background: var(--bg); }
.cta-card {
  position: relative; overflow: hidden; border-radius: var(--radius-xl);
  background: linear-gradient(140deg, var(--blue-600) 0%, #0e56c4 55%, var(--navy-900) 130%);
  color: #fff; padding: 56px 60px; display: flex; align-items: center; justify-content: space-between; gap: 40px;
  box-shadow: var(--shadow-lg);
}
.cta-card::before { content: ""; position: absolute; right: -80px; top: -80px; width: 300px; height: 300px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,.14), transparent 70%); }
.cta-card h2 { color: #fff; font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.02em; }
.cta-card p { color: rgba(255,255,255,.82); margin-top: 12px; max-width: 520px; }
.cta-card .cta-actions { display: flex; gap: 12px; flex-shrink: 0; position: relative; }
.cta-card .eyebrow { color: var(--blue-100); }
.cta-card .eyebrow::before { background: var(--blue-100); }

/* ---------- 页尾 ---------- */
.site-footer { background: var(--navy-950); color: rgba(255,255,255,.66); padding: 68px 0 0; font-size: 14.5px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .wordmark { color: #fff; font-size: 20px; font-weight: 800; letter-spacing: -0.01em; }
.footer-brand .wordmark span { color: var(--blue-100); }
.footer-brand p { margin-top: 12px; max-width: 260px; }
.footer-brand .tagline { color: var(--blue-100); font-weight: 600; font-size: 14px; margin-top: 6px; }
.site-footer h4 { color: #fff; font-size: 14px; margin-bottom: 18px; letter-spacing: .02em; }
.site-footer .f-col a { display: block; color: rgba(255,255,255,.62); padding: 5px 0; transition: color .15s; }
.site-footer .f-col a:hover { color: #fff; }
.site-footer .f-col p { margin: 5px 0; }
.legal { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; padding: 22px 0 28px; border-top: 1px solid rgba(255,255,255,.1); font-size: 13px; color: rgba(255,255,255,.5); }
.legal a { color: rgba(255,255,255,.55); display: inline-flex; align-items: center; gap: 5px; }
.legal a:hover { color: #fff; }
.legal img { height: 15px; width: auto; display: inline; }

/* ---------- 内页 Hero ---------- */
.page-hero { position: relative; overflow: hidden; background: linear-gradient(160deg, #071f46, var(--navy-900) 60%, #061736); color: #fff; padding: 76px 0 66px; }
.page-hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 46px 46px; mask-image: radial-gradient(60% 90% at 50% 0%, #000 30%, transparent 80%); -webkit-mask-image: radial-gradient(60% 90% at 50% 0%, #000 30%, transparent 80%); }
.page-hero .container { position: relative; }
.page-hero h1 { color: #fff; font-size: clamp(30px, 4vw, 46px); max-width: 760px; letter-spacing: -0.02em; }
.page-hero .lead { margin-top: 18px; font-size: 17px; color: rgba(255,255,255,.75); max-width: 660px; line-height: 1.8; }
.page-hero .hero-actions { margin-top: 28px; }
.breadcrumb { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: rgba(255,255,255,.6); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .5; }

/* ---------- 图文交替模块 ---------- */
.module { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 64px 0; }
.module + .module { border-top: 1px solid var(--line-soft); }
.module.rev .module-media { order: 2; }
.module.rev .module-copy { order: 1; }
.module-copy .kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; color: var(--blue-600); letter-spacing: .05em; margin-bottom: 14px; }
.module-copy h2 { font-size: clamp(24px, 2.6vw, 32px); margin-bottom: 16px; }
.module-copy .desc { color: var(--ink-600); font-size: 16px; }
.module-copy .desc + .desc { margin-top: 12px; }
.feature-list { margin-top: 24px; display: grid; gap: 14px; }
.feature-item { display: flex; gap: 12px; align-items: flex-start; }
.feature-item .fi { width: 24px; height: 24px; border-radius: 7px; background: var(--blue-50); color: var(--blue-600); display: grid; place-items: center; font-size: 13px; font-weight: 700; flex-shrink: 0; margin-top: 2px; }
.feature-item b { display: block; font-size: 15px; color: var(--ink-900); }
.feature-item span { color: var(--ink-600); font-size: 14.5px; }
.module-media .window { box-shadow: var(--shadow-lg); }
.module-media .caption { margin-top: 14px; text-align: center; font-size: 13px; color: var(--ink-500); }

/* ---------- 解决方案阶段 ---------- */
.sol-list { display: grid; gap: 0; }
.sol-stage { display: grid; grid-template-columns: 88px 1fr; gap: 28px; padding: 36px 0; border-bottom: 1px solid var(--line-soft); }
.sol-stage:last-child { border-bottom: 0; }
.sol-stage .s-index { font-size: 15px; font-weight: 800; color: var(--blue-600); letter-spacing: .04em; padding-top: 4px; }
.sol-stage .s-num { display: block; font-size: 34px; line-height: 1; color: var(--navy-900); font-weight: 800; }
.sol-stage h2 { font-size: 24px; margin-bottom: 12px; }
.sol-stage p { color: var(--ink-600); font-size: 16px; max-width: 720px; }
.sol-stage .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: var(--blue-50); color: var(--blue-600); border-radius: 999px; padding: 6px 13px; font-size: 13.5px; font-weight: 600; }

/* ---------- 表单 ---------- */
.form-shell { max-width: 860px; margin: 0 auto; }
.form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); overflow: hidden; }
.form-card .form-head { padding: 34px 40px 26px; border-bottom: 1px solid var(--line-soft); }
.form-card .form-head h2 { font-size: 22px; }
.form-card .form-head p { color: var(--ink-600); margin-top: 8px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding: 32px 40px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink-900); }
.field label .req { color: var(--red); margin-left: 2px; }
.field label .opt { color: var(--ink-400); font-weight: 400; font-size: 12.5px; margin-left: 6px; }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: 15px; color: var(--ink-900);
  padding: 12px 14px; border: 1px solid var(--line); border-radius: 11px;
  background: #fbfcfe; transition: border-color .15s, box-shadow .15s, background .15s;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 104px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 4px rgba(23,105,232,.12); background: #fff; }
.field .hint { font-size: 12.5px; color: var(--ink-500); }
.field.error input, .field.error select, .field.error textarea { border-color: var(--red); }
.field .err-msg { font-size: 12.5px; color: var(--red); display: none; }
.field.error .err-msg { display: block; }
.consent { display: flex; gap: 10px; align-items: flex-start; padding: 0 40px; }
.consent input { margin-top: 3px; width: 17px; height: 17px; accent-color: var(--blue-600); flex-shrink: 0; }
.consent label { font-size: 13.5px; color: var(--ink-600); }
.consent a { color: var(--blue-600); }
.form-foot { padding: 26px 40px 36px; }
.form-foot .submit-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form-foot .fine { font-size: 12.5px; color: var(--ink-500); margin-top: 14px; }
.form-success { display: none; text-align: center; padding: 64px 40px; }
.form-success.show { display: block; }
.form-success .ok { width: 68px; height: 68px; border-radius: 50%; background: var(--green-50); color: var(--green); display: grid; place-items: center; font-size: 34px; margin: 0 auto 22px; }
.form-success h2 { font-size: 24px; }
.form-success p { color: var(--ink-600); margin-top: 12px; }
.form-success .contact-note { display: inline-block; margin-top: 20px; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 14px 22px; color: var(--ink-700); font-size: 14.5px; }
.demo-aside { background: var(--blue-50); border-radius: var(--radius); padding: 22px 24px; }
.demo-aside h3 { font-size: 16px; margin-bottom: 12px; }
.demo-aside li { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; color: var(--ink-700); font-size: 14.5px; }
.demo-aside li::before { content: "✓"; color: var(--blue-600); font-weight: 700; flex-shrink: 0; }

/* ---------- 关于 ---------- */
.about-facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.fact-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; }
.fact-card .big { font-size: 30px; font-weight: 800; color: var(--blue-600); letter-spacing: -0.02em; }
.fact-card h3 { font-size: 16px; margin: 10px 0 6px; }
.fact-card p { color: var(--ink-600); font-size: 14px; }
.company-card { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.company-card dl { display: grid; grid-template-columns: 96px 1fr; gap: 12px 16px; margin: 0; }
.company-card dt { color: var(--ink-500); font-size: 14px; }
.company-card dd { margin: 0; color: #fff; font-weight: 600; font-size: 15px; }

/* ---------- 内容列表 ---------- */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.article-card { display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .2s, box-shadow .2s; }
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.article-card .a-cover { aspect-ratio: 16 / 9; background: var(--bg); display: grid; place-items: center; overflow: hidden; }
.article-card .a-cover img { width: 100%; height: 100%; object-fit: cover; }
.article-card .a-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.article-card .a-cat { font-size: 12.5px; font-weight: 700; color: var(--blue-600); }
.article-card h3 { font-size: 17px; margin: 10px 0 10px; line-height: 1.4; }
.article-card h3 a { color: var(--ink-900); }
.article-card h3 a:hover { color: var(--blue-600); }
.article-card p { color: var(--ink-600); font-size: 14px; flex: 1; }
.article-card .a-meta { display: flex; gap: 14px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line-soft); color: var(--ink-500); font-size: 12.5px; }

/* ---------- 文章详情 ---------- */
.article-hero { background: var(--bg); padding: 54px 0 40px; border-bottom: 1px solid var(--line-soft); }
.article-hero .eyebrow { margin-bottom: 14px; }
.article-hero h1 { font-size: clamp(28px, 3.4vw, 40px); max-width: 820px; letter-spacing: -0.02em; }
.article-hero .a-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 22px; color: var(--ink-500); font-size: 14px; }
.article-hero .a-meta b { color: var(--ink-700); font-weight: 600; }
.article-body { max-width: 760px; margin: 0 auto; padding: 48px 24px 60px; }
.article-body h2 { font-size: 24px; margin: 40px 0 14px; }
.article-body p { color: var(--ink-700); font-size: 16.5px; line-height: 1.9; margin-bottom: 16px; }
.article-body ul { margin: 16px 0; }
.article-body li { position: relative; padding-left: 24px; margin-bottom: 10px; color: var(--ink-700); font-size: 16px; line-height: 1.8; }
.article-body li::before { content: ""; position: absolute; left: 4px; top: 12px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue-600); }
.article-body blockquote { margin: 28px 0; padding: 22px 26px; background: var(--blue-50); border-left: 4px solid var(--blue-600); border-radius: 0 12px 12px 0; color: var(--navy-800); font-size: 17px; font-weight: 600; line-height: 1.7; }
.article-body .source-note { margin-top: 36px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; }
.article-body .source-note strong { color: var(--ink-900); font-size: 14px; }
.article-body .source-note p { margin: 8px 0 0; font-size: 14px; color: var(--ink-600); }
.article-body .source-note a { display: inline-block; margin-top: 10px; font-size: 14px; font-weight: 600; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; background: var(--white); overflow: hidden; }
.faq-q { width: 100%; background: none; border: 0; text-align: left; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--ink-900); cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.faq-q .plus { flex-shrink: 0; width: 26px; height: 26px; border-radius: 8px; background: var(--blue-50); color: var(--blue-600); display: grid; place-items: center; font-size: 18px; transition: transform .2s, background .2s, color .2s; }
.faq-item.open .faq-q .plus { transform: rotate(45deg); background: var(--blue-600); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
.faq-a-inner { padding: 0 24px 22px; color: var(--ink-600); font-size: 15px; }

/* ---------- 简单页 ---------- */
.simple-page { padding: 64px 0 80px; }
.simple-page h1 { font-size: 34px; letter-spacing: -0.02em; }
.simple-page h2 { font-size: 20px; margin: 34px 0 12px; }
.simple-page p { color: var(--ink-700); margin-bottom: 12px; }
.simple-page .muted { color: var(--ink-500); font-size: 14px; }
.simple-page .policy-meta { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--ink-500); font-size: 13.5px; }

/* ---------- 通用徽标 / 状态 ---------- */
.pill { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 600; border-radius: 999px; padding: 6px 13px; }
.pill .dot { width: 7px; height: 7px; border-radius: 50%; }
.pill.blue { background: var(--blue-50); color: var(--blue-600); }
.pill.blue .dot { background: var(--blue-600); }

/* ---------- 动画 ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Toast ---------- */
.toast { position: fixed; left: 50%; bottom: 32px; transform: translate(-50%, 20px); background: var(--navy-900); color: #fff; padding: 14px 22px; border-radius: 12px; font-size: 14.5px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: .3s ease; z-index: 200; max-width: 90vw; text-align: center; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { max-width: 640px; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-step:nth-child(3)::after { display: none; }
  .flow-step::after { right: -15px; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .scene-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .module { grid-template-columns: 1fr; gap: 32px; }
  .module.rev .module-media { order: 0; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .section { padding: 56px 0; }
  .nav-shell { height: 72px; }
  .menu-toggle { display: flex; margin-left: auto; }
  .main-nav {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--white); border-bottom: 1px solid var(--line);
    padding: 14px 20px 20px; box-shadow: var(--shadow-md);
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav > a:not(.button) { padding: 12px 14px; font-size: 16px; }
  .main-nav .button { width: 100%; }
  .nav-cta { margin-left: 0; }
  .brand img { height: 58px; }
  .hero-inner { padding: 48px 20px 44px; }
  .chip-a { left: -6px; top: -18px; }
  .chip-b { right: -6px; bottom: -16px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 32px; }
  .section-head.center { align-items: center; text-align: center; }
  .pain-grid, .cap-grid, .deliver-grid, .trust-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow-step:nth-child(2)::after { display: none; }
  .flow-step::after { display: none; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-card { flex-direction: column; align-items: flex-start; padding: 40px 28px; }
  .cta-card .cta-actions { width: 100%; }
  .cta-card .cta-actions .button { flex: 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .page-hero { padding: 52px 0 48px; }
  .form-grid { grid-template-columns: 1fr; padding: 26px 24px; }
  .form-card .form-head { padding: 26px 24px 20px; }
  .consent { padding: 0 24px; }
  .form-foot { padding: 22px 24px 30px; }
  .sol-stage { grid-template-columns: 1fr; gap: 8px; }
  .about-facts { grid-template-columns: repeat(2, 1fr); }
  .company-card { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr; }
  .article-body h2 { font-size: 21px; }
  .article-body p { font-size: 15.5px; }
}
@media (max-width: 400px) {
  .scene-grid { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr 1fr; }
}