/* ============================================================
 * 青小元官网 V6.0 · 轻盈未来科技感（对应 官网UI设计-V0.1）
 * 视觉系统：
 *   - 纸底 #F6FAF8，大面积留白，拒绝深色整屏
 *   - 青 #00998B → 青亮 #00B3A3 渐变（关键按钮/数字/星火）
 *   - 火花 #FF8A3D 只在三处：星火图形、关键数字、CTA hover
 *   - 图形语言：星火四芒、细网格线、玻璃拟态卡片、大圆角
 *   - 字体：Bricolage Grotesque / Noto Sans SC / IBM Plex Mono
 *   - 动效克制：星火扫过 hero 一次、数字滚动、卡片 hover 轻浮起
 * ============================================================ */

/* ===== Tokens ===== */
:root {
  --teal: #00998B;
  --teal-deep: #006B62;
  --teal-bright: #00B3A3;
  --spark: #FF8A3D;
  --spark-soft: #FFC24B;
  --ink: #16302E;
  --mist: #5C6F6C;
  --paper: #F6FAF8;
  --card: rgba(255, 255, 255, .72);
  --line: rgba(22, 48, 46, .10);
  --line-strong: rgba(0, 153, 139, .16);

  --disp: 'Bricolage Grotesque', 'Noto Sans SC', sans-serif;
  --cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --max: 1140px;
  --r-lg: 26px;
  --r: 20px;
  --r-sm: 16px;
  --shadow-card: 0 30px 60px -30px rgba(22, 48, 46, .18);
  --shadow-lift: 0 20px 36px -20px rgba(0, 153, 139, .3);
}

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 16px/1.75 var(--cn);
  overflow-wrap: anywhere; /* 窄屏兜底：邮箱、长链接不撑破布局 */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img, svg { max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
h1, h2, h3, h4, p, ul, ol { margin-top: 0; }
h1, h2, h3, h4 { color: inherit; line-height: 1.25; }
p { margin-bottom: 1em; }
ul, ol { margin-bottom: 1em; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--spark); outline-offset: 4px; }
::selection { color: #fff; background: var(--teal); }
section[id] { scroll-margin-top: 84px; }

.container, .wrap { width: min(calc(100% - 44px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; padding: 10px 16px; color: #fff; background: var(--teal-deep); border-radius: 999px; font-size: 14px; transition: top .2s ease; }
.skip-link:focus { top: 16px; }
.icon { width: 26px; height: 26px; fill: none; stroke: currentColor; }

/* 质感：极淡噪点，全站铺底（低于视觉阈值，去"平"） */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===== 细网格线（hero / 内页头图） ===== */
.hero::before, .page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(22, 48, 46, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 48, 46, .035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(120% 110% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(120% 110% at 50% 0%, #000 30%, transparent 80%);
  pointer-events: none;
}

/* ===== Typography ===== */
.eyebrow {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--teal);
  text-transform: uppercase;
}
.eyebrow--light { color: rgba(255, 255, 255, .82); }
.section-mark {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--teal);
  text-transform: uppercase;
}
.sec-head, .section-head { margin-bottom: 44px; }
.sec-head h2, .section-head h2 {
  margin: 10px 0 6px;
  font-family: var(--disp);
  font-size: clamp(28px, 3.6vw, 34px);
  font-weight: 800;
  letter-spacing: -.01em;
  text-wrap: balance;
}
.sec-head .sub, .section-head > p:last-child {
  color: var(--mist);
  font-size: 15.5px;
  max-width: 60ch;
}
.split-head {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr);
  align-items: end;
  gap: 60px;
  max-width: none;
}
.split-head h2 { margin-top: 10px; }
.split-head > p { margin: 0 0 8px; }
.hint {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
  margin-top: 20px;
}

/* ===== Section rhythm ===== */
.section { padding: 88px 0; }
.section--paper { background: var(--paper); }
/* 强调段：浅青水洗，拒绝深色整屏 */
.section--jade {
  background: linear-gradient(150deg, rgba(0, 179, 163, .08), rgba(0, 153, 139, .03));
  border-block: 1px solid rgba(0, 153, 139, .12);
}
.section--jade h2 { color: var(--ink); }
.section--jade .lead-copy { color: var(--mist); }
.rule { border-top: 1px solid var(--line); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 12px 26px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary, .btn-p {
  color: #fff;
  background: linear-gradient(120deg, var(--teal-bright), var(--teal-deep));
  box-shadow: 0 12px 28px -12px rgba(0, 153, 139, .6);
}
.btn--primary:hover, .btn-p:hover { box-shadow: 0 16px 32px -12px rgba(0, 153, 139, .72); }
.btn--secondary { color: var(--teal-deep); background: rgba(0, 153, 139, .08); }
.btn--secondary:hover { background: rgba(0, 153, 139, .14); }
.btn--outline, .btn-s {
  color: var(--teal-deep);
  background: transparent;
  border-color: rgba(0, 153, 139, .35);
}
.btn--outline:hover, .btn-s:hover { background: rgba(0, 153, 139, .06); border-color: var(--teal); }
.btn--sm { min-height: 40px; padding: 8px 20px; font-size: 13.5px; }
.btn--large { min-height: 58px; padding-inline: 32px; font-size: 16px; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 3px;
  color: var(--teal-deep);
  font-weight: 700;
  font-size: 14.5px;
  border-bottom: 1px solid currentColor;
}
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }
.text-link--light { color: var(--teal-deep); }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 250, 248, .82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 22px; height: 72px; }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; }
.brand img { display: block; width: 140px; height: auto; }
.site-nav { margin-left: auto; }
.site-nav ul { display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; list-style: none; }
.site-nav a:not(.btn) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 14px;
  color: var(--ink);
  font-size: 14px;
  border-radius: 999px;
  transition: color .2s ease, background .2s ease;
}
.site-nav a:not(.btn):hover, .site-nav a.is-active:not(.btn) { color: var(--teal-deep); background: rgba(0, 153, 139, .07); }
.nav-cta { margin-left: 8px; }
/* 移动端底部粘性 CTA（桌面隐藏） */
.mobile-cta { display: none; }
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  margin-left: auto;
  padding: 0;
  color: var(--teal-deep);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
}
.nav-toggle span { display: block; width: 18px; height: 1px; margin: 5px auto; background: currentColor; transition: transform .2s ease; }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* ===== Home · Hero ===== */
.hero { position: relative; padding: 104px 0 96px; overflow: hidden; }
.hero .glow {
  position: absolute;
  inset: auto auto -30% -10%;
  width: 60%;
  height: 70%;
  background: radial-gradient(closest-side, rgba(0, 179, 163, .14), transparent);
  pointer-events: none;
}
/* 星火扫过 hero 一次 */
.hero::after {
  content: "";
  position: absolute;
  top: -20%;
  left: -30%;
  width: 26%;
  height: 150%;
  background: linear-gradient(105deg, transparent, rgba(0, 179, 163, .06) 45%, rgba(0, 179, 163, .12) 50%, rgba(0, 179, 163, .06) 55%, transparent);
  transform: skewX(-12deg) translateX(-140%);
  animation: hero-sweep 2.4s cubic-bezier(.4, 0, .2, 1) .35s forwards;
  pointer-events: none;
}
@keyframes hero-sweep { to { transform: skewX(-12deg) translateX(620%); } }
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 64px;
  align-items: center;
}
.hero h1 {
  margin: 0;
  font-family: var(--cn);
  font-weight: 900;
  font-size: clamp(40px, 5.6vw, 58px);
  line-height: 1.16;
  letter-spacing: .01em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--teal-bright), var(--teal-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .pitch { margin-top: 20px; font-size: 17px; color: var(--mist); max-width: 46ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; align-items: center; }
.btn-p, .btn-s { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 13px 30px; font-weight: 700; font-size: 15px; border-radius: 999px; border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn-p { color: #fff; background: linear-gradient(120deg, var(--teal-bright), var(--teal-deep)); box-shadow: 0 12px 28px -12px rgba(0, 153, 139, .6); }
.btn-p:hover { transform: translateY(-2px); box-shadow: 0 16px 32px -12px rgba(0, 153, 139, .72); }
.btn-s { color: var(--teal-deep); background: transparent; border-color: rgba(0, 153, 139, .35); }
.btn-s:hover { transform: translateY(-2px); background: rgba(0, 153, 139, .06); border-color: var(--teal); }
.hero .mini { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 36px; font-size: 12.5px; color: var(--mist); }
.hero .mini span { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 5px; height: 5px; flex: 0 0 5px; border-radius: 50%; background: var(--teal); }

.hero-visual { position: relative; }
.phone-mock {
  max-width: 420px;
  margin-inline: auto;
  background: linear-gradient(165deg, var(--teal-bright), var(--teal-deep) 90%);
  border-radius: 22px;
  padding: 24px 20px 18px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 40px 70px -34px rgba(0, 107, 98, .55);
}
.phone-mock::after {
  content: "";
  position: absolute;
  inset: auto -40% -50% auto;
  width: 120%;
  height: 60%;
  background: radial-gradient(closest-side, rgba(255, 255, 255, .18), transparent);
  pointer-events: none;
}
.p-head { display: flex; align-items: center; gap: 10px; position: relative; z-index: 1; }
.p-head .t { font-weight: 900; font-size: 15px; }
.p-head .s { font-family: var(--mono); font-size: 9px; letter-spacing: .16em; opacity: .75; }
.p-rows { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; position: relative; z-index: 1; }
.p-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .13);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 14px;
  padding: 11px 14px;
  font-size: 12px;
}
.p-row b { color: var(--spark-soft); font-family: var(--mono); font-weight: 600; white-space: nowrap; }
.p-tabs {
  display: flex;
  justify-content: space-around;
  background: rgba(0, 0, 0, .16);
  border-radius: 999px;
  padding: 8px 4px;
  margin-top: 18px;
  position: relative;
  z-index: 1;
}
.p-tab { font-size: 10px; opacity: .7; text-align: center; line-height: 1.35; }
.p-tab.on { opacity: 1; color: var(--spark-soft); }

.float-card {
  position: absolute;
  background: var(--card);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: 16px;
  padding: 12px 16px;
  box-shadow: 0 18px 36px -18px rgba(22, 48, 46, .25);
  font-size: 12.5px;
  z-index: 2;
  animation: floaty 7s ease-in-out infinite;
}
.float-card .k { font-family: var(--mono); font-size: 10px; letter-spacing: .14em; color: var(--mist); }
.float-card .v { font-family: var(--disp); font-weight: 800; font-size: 20px; color: var(--teal-deep); margin-top: 2px; }
.fc1 { top: -26px; right: -12px; }
.fc2 { bottom: -24px; left: -14px; animation-delay: 2.2s; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

.spark-s { position: absolute; width: 16px; height: 16px; opacity: .85; animation: sparkpulse 5s ease-in-out infinite; pointer-events: none; }
.spark-s--lg { width: 24px; height: 24px; }
@keyframes sparkpulse { 0%, 100% { opacity: .35; transform: scale(.8) rotate(0); } 50% { opacity: .9; transform: scale(1.05) rotate(18deg); } }

/* ===== 信任带（状态公开） ===== */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat {
  background: var(--card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: var(--r);
  padding: 26px;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.stat::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 100%;
  height: 80%;
  background: radial-gradient(closest-side, rgba(0, 179, 163, .10), transparent);
  pointer-events: none;
}
.stat .k { font-family: var(--mono); font-size: 11px; letter-spacing: .16em; color: var(--mist); }
.stat .v { font-family: var(--disp); font-weight: 800; font-size: 34px; color: var(--teal-deep); margin-top: 8px; line-height: 1.15; }
.stat .v sup { font-size: 15px; color: var(--spark); font-weight: 700; }
.stat-note { margin: 6px 0 0; font-size: 12.5px; color: var(--mist); }

/* ===== 园区的一天 · 时间轴 ===== */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
.tl {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 24px;
  position: relative;
  transition: transform .25s ease, box-shadow .25s ease;
}
.tl:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.tl .t { font-family: var(--mono); font-size: 12px; color: var(--teal); letter-spacing: .1em; }
.tl h4 { font-size: 16px; font-weight: 800; margin: 10px 0 6px; }
.tl p { margin: 0; font-size: 13px; color: var(--mist); line-height: 1.65; }
.tl::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 26px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--teal);
}
.tl:first-child::before { background: var(--teal); }

/* ===== 三端产品 ===== */
.tri { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tri-card {
  background: var(--card);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: 24px;
  padding: 30px;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.tri-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.tri-card .tag { font-family: var(--mono); font-size: 10px; letter-spacing: .18em; color: var(--teal); }
.tri-card h3 { font-family: var(--disp); font-size: 21px; font-weight: 800; margin: 12px 0 8px; }
.tri-card p { margin: 0; font-size: 13.5px; color: var(--mist); }
.tri-card .items { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(0, 153, 139, .08);
  color: var(--teal-deep);
  border: 1px solid rgba(0, 153, 139, .16);
}

/* ===== 经营指标 ===== */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.metric { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 24px; transition: transform .25s ease, box-shadow .25s ease; }
.metric:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.metric .n { font-family: var(--disp); font-weight: 800; font-size: 30px; color: var(--teal-deep); line-height: 1.2; }
.metric .n b { color: var(--spark); font-size: 14px; font-weight: 800; }
.metric .l { font-size: 13px; color: var(--mist); margin-top: 4px; }

/* ===== 能力矩阵 4×3 ===== */
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.cell {
  background: var(--card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: 18px;
  padding: 22px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.cell:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.cell .k { font-family: var(--mono); font-size: 10px; letter-spacing: .16em; color: var(--teal); }
.cell h4 { font-size: 15.5px; font-weight: 800; margin: 8px 0 6px; }
.cell p { margin: 0; font-size: 12.5px; color: var(--mist); line-height: 1.6; }

/* ===== 安全带 ===== */
.trustband {
  background: linear-gradient(150deg, rgba(0, 179, 163, .08), rgba(0, 153, 139, .03));
  border: 1px solid rgba(0, 153, 139, .12);
  border-radius: 28px;
  padding: 44px;
}
.trustband h3 { margin: 0; font-family: var(--disp); font-size: clamp(22px, 2.6vw, 24px); font-weight: 800; }
.trust-items { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.trust-item .k { font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; color: var(--teal); }
.trust-item p { margin: 6px 0 0; font-size: 13.5px; color: var(--mist); }

/* ===== FAQ ===== */
.faq { max-width: 760px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item .q { font-weight: 800; font-size: 15.5px; }
.faq-q {
  width: 100%;
  min-height: 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 20px 4px;
  color: var(--ink);
  text-align: left;
  background: none;
  border: 0;
  cursor: pointer;
  font-weight: 800;
  font-size: 15.5px;
  transition: color .2s ease;
}
.faq-q:hover { color: var(--teal-deep); }
.faq-q span { position: relative; flex: 0 0 18px; width: 18px; height: 18px; }
.faq-q span::before, .faq-q span::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  top: 8px;
  height: 1.5px;
  background: var(--teal);
}
.faq-q span::after { transform: rotate(90deg); transition: transform .2s ease; }
.faq-q[aria-expanded="true"] span::after { transform: rotate(0); }
.faq-a { padding: 0 40px 22px 4px; color: var(--mist); font-size: 13.5px; }
.faq-a p { margin: 0; }

/* ===== CTA 带 ===== */
.cta-zone { padding: 60px 0 96px; }
.cta-band {
  background: linear-gradient(130deg, var(--teal-bright), var(--teal-deep));
  border-radius: 32px;
  padding: 60px;
  color: #fff;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-band::after {
  content: "";
  position: absolute;
  inset: auto -20% -60% auto;
  width: 80%;
  height: 120%;
  background: radial-gradient(closest-side, rgba(255, 194, 75, .28), transparent);
  pointer-events: none;
}
.cta-band h2 { position: relative; z-index: 1; color: #fff; font-family: var(--disp); font-size: clamp(24px, 3.4vw, 32px); font-weight: 800; margin: 0; }
.cta-band p { position: relative; z-index: 1; color: rgba(255, 255, 255, .85); margin: 12px 0 0; }
.cta-band .btn-p { position: relative; z-index: 1; display: inline-flex; margin-top: 28px; background: #fff; color: var(--teal-deep); box-shadow: 0 14px 30px -14px rgba(0, 0, 0, .35); }
.cta-band .btn-p:hover { color: var(--spark); }
.cta-band .hint { position: relative; z-index: 1; font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: rgba(255, 255, 255, .6); margin-top: 16px; }

/* ===== 内页头图 ===== */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 84px;
  border-bottom: 1px solid var(--line);
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: auto auto -45% -12%;
  width: 55%;
  height: 80%;
  background: radial-gradient(closest-side, rgba(0, 179, 163, .10), transparent);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 {
  margin: 0 0 22px;
  font-family: var(--cn);
  font-weight: 900;
  font-size: clamp(36px, 5vw, 50px);
  line-height: 1.18;
}
.page-hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--teal-bright), var(--teal-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-hero__lead { max-width: 66ch; margin: 0; color: var(--mist); font-size: 16.5px; }
.page-hero__aside { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 10px; }
.page-hero__aside span {
  padding: 7px 14px;
  color: var(--teal-deep);
  background: rgba(0, 153, 139, .06);
  border: 1px solid rgba(0, 153, 139, .18);
  border-radius: 999px;
  font-size: 12.5px;
}
.breadcrumb { margin: 0 0 22px; font-family: var(--mono); font-size: 11px; letter-spacing: .2em; color: var(--teal); text-transform: uppercase; }

/* ===== 内页通用模块 ===== */
.intro-grid { display: grid; grid-template-columns: .62fr 1.38fr; gap: 70px; align-items: start; }
.intro-grid h2 { margin-bottom: 22px; font-family: var(--disp); font-size: clamp(26px, 3.4vw, 32px); font-weight: 800; letter-spacing: -.01em; }
.lead-copy { color: var(--mist); font-size: 16px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card {
  background: var(--card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: 24px;
  padding: 30px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.feature-card__top { display: flex; justify-content: space-between; align-items: center; color: var(--teal); font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; }
.feature-card .icon { width: 26px; height: 26px; color: var(--teal); }
.feature-card h3 { margin: 22px 0 10px; font-family: var(--disp); font-size: 20px; font-weight: 800; }
.feature-card p { margin: 0; color: var(--mist); font-size: 13.5px; }

.status-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.status-column { padding: 32px 28px; }
.status-column + .status-column { border-left: 1px solid var(--line); }
.status-label { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 22px; color: var(--teal-deep); font-size: 12px; font-weight: 700; letter-spacing: .1em; }
.status-label::before { content: ""; width: 8px; height: 8px; background: var(--teal-bright); border-radius: 50%; }
.status-column--pilot .status-label { color: #8c5e04; }
.status-column--pilot .status-label::before { background: var(--spark); }
.status-column--plan .status-label { color: var(--mist); }
.status-column--plan .status-label::before { background: #98a39f; }
.status-column h3 { margin: 0; font-size: 17px; font-weight: 800; }
.status-column ul { margin: 18px 0 0; padding: 0; list-style: none; color: var(--mist); font-size: 13.5px; }
.status-column li { padding: 9px 0; border-top: 1px solid var(--line); }
.status-column li:first-child { border-top: 0; }

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  counter-reset: boundary;
}
.boundary-item { padding: 28px 26px; }
.boundary-item + .boundary-item { border-left: 1px solid var(--line); }
.boundary-item::before {
  counter-increment: boundary;
  content: "0" counter(boundary);
  display: block;
  margin-bottom: 30px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .15em;
  color: var(--teal);
}
.boundary-item h3 { margin: 0; font-size: 16.5px; font-weight: 800; }
.boundary-item p { margin: 8px 0 0; color: var(--mist); font-size: 13.5px; }

.principle-list { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line-strong); border-radius: var(--r-lg); overflow: hidden; background: var(--card); }
.principle-item { padding: 28px 26px; }
.principle-item + .principle-item { border-left: 1px solid var(--line); }
.principle-item:nth-child(3) { border-top: 1px solid var(--line); border-left: 0; }
.principle-item:nth-child(4) { border-top: 1px solid var(--line); }
.principle-item h3 { margin: 0; font-size: 16px; font-weight: 800; }
.principle-item p { margin: 8px 0 0; color: var(--mist); font-size: 13.5px; }

.quiet-note { max-width: 66ch; margin: 0; color: var(--mist); font-size: 13.5px; }

/* ===== 场景页 ===== */
.scene-index { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.scene-index a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 16px;
  color: var(--teal-deep);
  background: rgba(0, 153, 139, .06);
  border: 1px solid rgba(0, 153, 139, .18);
  border-radius: 999px;
  font-size: 13px;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.scene-index a:hover { color: var(--ink); border-color: var(--teal); background: rgba(0, 153, 139, .1); }
.scene-detail { scroll-margin-top: 84px; padding: 88px 0; }
.scene-detail:nth-child(even) { background: var(--paper); }
.scene-detail__grid { display: grid; grid-template-columns: 64px .8fr 1.2fr; gap: 44px; align-items: start; }
.scene-detail__number { font-family: var(--mono); font-size: 11px; letter-spacing: .18em; color: var(--teal); padding-top: 6px; }
.scene-detail h2 { margin: 0 0 14px; font-family: var(--disp); font-size: clamp(24px, 3vw, 30px); font-weight: 800; letter-spacing: -.01em; }
.scene-detail__task { margin: 0; color: var(--mist); font-size: 15px; }
.example-tag {
  display: inline-block;
  margin-top: 14px;
  padding: 4px 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--spark);
  background: rgba(255, 138, 61, .08);
  border: 1px solid rgba(255, 138, 61, .3);
  border-radius: 999px;
}
.scene-flow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.scene-col { padding: 24px 24px 12px; }
.scene-col + .scene-col { border-left: 1px solid var(--line); background: rgba(0, 179, 163, .04); }
.scene-col small { display: block; font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; color: var(--teal); margin-bottom: 12px; }
.scene-col ol { margin: 0; padding: 0 0 0 20px; }
.scene-col li { margin: 0; padding: 5px 0; color: var(--mist); font-size: 13.5px; line-height: 1.7; }
.scene-col li::marker { color: var(--teal); font-family: var(--mono); font-weight: 600; font-size: 12px; }

/* ===== 流程页 ===== */
.process-list { margin: 0; padding: 0; list-style: none; }
.process-step {
  display: grid;
  grid-template-columns: 84px .72fr 1.28fr;
  gap: 32px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.process-step__number { font-family: var(--mono); font-size: 12px; letter-spacing: .18em; color: var(--teal); padding-top: 8px; }
.process-step h2 { margin: 0; font-family: var(--disp); font-size: 22px; font-weight: 800; }
.process-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.process-meta small { display: block; margin-bottom: 6px; font-family: var(--mono); font-size: 10px; letter-spacing: .14em; color: var(--teal); }
.process-meta p { margin: 0; color: var(--mist); font-size: 13.5px; }
.notice {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  margin-top: 48px;
  padding: 28px 32px;
  background: linear-gradient(150deg, rgba(0, 179, 163, .08), rgba(0, 153, 139, .03));
  border: 1px solid rgba(0, 153, 139, .14);
  border-radius: var(--r-lg);
}
.notice strong { color: var(--teal-deep); font-size: 13px; letter-spacing: .1em; }
.notice p { margin: 0; color: var(--mist); font-size: 13.5px; }

/* ===== 成效页 · 上线前 vs 上线后 ===== */
.compare { border: 1px solid var(--line-strong); border-radius: var(--r-lg); overflow: hidden; background: var(--card); }
.compare-row { display: grid; grid-template-columns: 1fr 1fr; }
.compare-row + .compare-row { border-top: 1px solid var(--line); }
.compare-head { background: rgba(0, 153, 139, .06); }
.compare-before, .compare-after { padding: 24px 28px; }
.compare-before { border-right: 1px solid var(--line); background: rgba(246, 250, 248, .8); }
.compare-after { background: rgba(0, 179, 163, .05); }
.compare h3 { margin: 0 0 6px; font-size: 14.5px; font-weight: 800; }
.compare-head h3 { margin: 0; font-family: var(--mono); font-size: 11px; letter-spacing: .16em; color: var(--teal-deep); }
.compare p { margin: 0; color: var(--mist); font-size: 13.5px; }
.save {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--spark);
  background: rgba(255, 138, 61, .08);
  border: 1px solid rgba(255, 138, 61, .32);
  border-radius: 999px;
}

/* ===== 关于页 ===== */
.belief-quote {
  max-width: 900px;
  margin: 0;
  font-family: var(--disp);
  font-weight: 800;
  font-size: clamp(30px, 4.6vw, 44px);
  line-height: 1.35;
  letter-spacing: -.01em;
}
.belief-quote em { color: var(--teal); font-style: normal; }
.relation-map { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.relation-card {
  background: var(--card);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .85);
  border-radius: 24px;
  padding: 30px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.relation-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.relation-card span { font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; color: var(--teal); }
.relation-card h3 { margin: 20px 0 8px; font-family: var(--disp); font-size: 22px; font-weight: 800; }
.relation-card p { margin: 0; color: var(--mist); font-size: 13.5px; }

.contact-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; align-items: start; }
.contact-grid h2 { margin: 0 0 14px; font-family: var(--disp); font-size: clamp(26px, 3.4vw, 32px); font-weight: 800; }
.contact-grid > div > p { color: var(--mist); }
.contact-cards { border: 1px solid var(--line-strong); border-radius: var(--r-lg); overflow: hidden; background: var(--card); }
.contact-row { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 20px 26px; }
.contact-row + .contact-row { border-top: 1px solid var(--line); }
.contact-row b { color: var(--teal); font-family: var(--mono); font-size: 11px; letter-spacing: .1em; font-weight: 600; }
.contact-row span { color: var(--mist); font-size: 13.5px; }
.contact-row a { color: var(--teal-deep); text-decoration: underline; text-underline-offset: 4px; }

/* ===== 法律页 ===== */
.legal-layout { display: grid; grid-template-columns: 230px minmax(0, 760px); gap: 64px; align-items: start; }
.doc-meta {
  position: sticky;
  top: 96px;
  padding: 22px;
  color: var(--mist);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.9;
}
.article h2 { margin: 48px 0 16px; padding-top: 22px; border-top: 1px solid var(--line); font-family: var(--disp); font-size: 24px; font-weight: 800; }
.article h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.article h3 { margin: 26px 0 10px; font-size: 16.5px; font-weight: 800; }
.article p, .article li { color: var(--mist); font-size: 14.5px; }
.article a { color: var(--teal-deep); text-decoration: underline; text-underline-offset: 3px; }

/* ===== 最终 CTA（内页） ===== */
.contact-section { padding-bottom: 96px; }
.contact-panel {
  position: relative;
  overflow: hidden;
  padding: 60px;
  color: #fff;
  background: linear-gradient(130deg, var(--teal-bright), var(--teal-deep));
  border-radius: 32px;
  text-align: center;
}
.contact-panel::after {
  content: "";
  position: absolute;
  inset: auto -20% -60% auto;
  width: 80%;
  height: 120%;
  background: radial-gradient(closest-side, rgba(255, 194, 75, .28), transparent);
  pointer-events: none;
}
.contact-panel h2 { position: relative; z-index: 1; color: #fff; font-family: var(--disp); font-size: clamp(24px, 3.4vw, 32px); font-weight: 800; margin: 0; }
.contact-panel > p:not(.eyebrow) { position: relative; z-index: 1; color: rgba(255, 255, 255, .85); margin: 12px 0 0; }
.contact-panel .eyebrow { position: relative; z-index: 1; color: rgba(255, 255, 255, .8); }
.contact-actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 22px; margin-top: 28px; }
.contact-actions .btn--primary { background: #fff; color: var(--teal-deep); box-shadow: 0 14px 30px -14px rgba(0, 0, 0, .3); }
.contact-actions .btn--primary:hover { color: var(--spark); }
.contact-actions > span { color: rgba(255, 255, 255, .75); font-size: 13.5px; }
.contact-actions > span a { color: #fff; border-bottom: 1px solid currentColor; }

/* ===== Footer（技术支持一行，QSpark 退后） ===== */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0 56px; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 48px; }
.footer-brand img { width: 148px; height: auto; }
.footer-brand p { margin: 18px 0 6px; color: var(--teal-deep); font-weight: 800; font-size: 16.5px; }
.footer-brand small { color: var(--mist); font-size: 12.5px; line-height: 1.8; }
.footer-grid h2 { margin: 0 0 16px; color: var(--teal); font-family: var(--mono); font-size: 10.5px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li { margin: 8px 0; font-size: 13.5px; color: var(--ink); }
.footer-grid a { color: inherit; }
.footer-grid a:hover { color: var(--teal-deep); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 44px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--mist);
}
.footer-bottom p { margin: 0; }
.footer-bottom a:hover { color: var(--teal-deep); }

/* ===== Reveal（克制上浮） ===== */
[data-reveal] { opacity: 1; transform: none; }
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.2, .75, .25, 1);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ===== 质感层：1px 高光边、双层渐变阴影、hover 微倾斜 ===== */
.stat, .tri-card, .cell, .feature-card, .relation-card, .tl, .metric,
.status-board, .boundary-grid, .scene-flow, .compare, .contact-cards, .principle-list {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .5), 0 30px 60px -30px rgba(22, 48, 46, .14);
}
.stat:hover, .tri-card:hover, .cell:hover, .feature-card:hover, .relation-card:hover, .tl:hover, .metric:hover {
  transform: translateY(-4px) rotate(-.3deg);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .55), 0 22px 40px -20px rgba(0, 153, 139, .3);
}
.float-card {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .6), 0 18px 36px -18px rgba(22, 48, 46, .25);
}

/* ===== Responsive ===== */
@media (max-width: 1050px) {
  .site-header { height: 68px; }
  .header-inner { height: 68px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    inset: 68px 0 auto;
    max-height: calc(100svh - 68px);
    overflow-y: auto;
    padding: 18px 24px 30px;
    background: rgba(246, 250, 248, .98);
    border-top: 1px solid var(--line);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform .25s ease, opacity .25s ease, visibility .25s;
  }
  .site-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .site-nav ul { display: block; }
  .site-nav a:not(.btn) { width: 100%; min-height: 52px; padding-inline: 6px; border-bottom: 1px solid var(--line); border-radius: 0; font-size: 17px; }
  .nav-cta { width: 100%; margin: 18px 0 0; }
  .split-head { grid-template-columns: 1fr; gap: 18px; }
  .intro-grid, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .legal-layout { grid-template-columns: 1fr; gap: 28px; }
  .doc-meta { position: static; }
  .feature-grid, .relation-map { grid-template-columns: 1fr; }
  .status-board, .boundary-grid { grid-template-columns: 1fr 1fr; }
  .status-column + .status-column, .boundary-item + .boundary-item { border-left: 0; border-top: 1px solid var(--line); }
  .status-column:nth-child(2), .boundary-item:nth-child(2) { border-top: 0; }
  .scene-detail__grid { grid-template-columns: 44px .7fr 1.3fr; gap: 28px; }
  .process-step { grid-template-columns: 56px 1fr; gap: 16px; }
  .process-meta { grid-column: 2; }
}

@media (max-width: 860px) {
  /* 移动优先：更高压缩的头、底部粘性 CTA、触控留白 */
  .section { padding: 56px 0; }
  .header-inner { height: 60px; }
  .site-nav { inset: 60px 0 auto; max-height: calc(100svh - 60px); }
  .mobile-cta {
    display: flex;
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    z-index: 70;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    border-radius: 999px;
    color: #fff;
    background: linear-gradient(120deg, var(--teal-bright), var(--teal-deep));
    box-shadow: 0 16px 40px -12px rgba(0, 153, 139, .65);
    font-weight: 700;
    font-size: 15px;
    letter-spacing: .02em;
  }
  .site-footer { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
  .hero { padding: 72px 0 72px; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero-visual { max-width: 480px; margin-inline: auto; width: 100%; }
  .hero h1 { font-size: 40px; }
  .hero .pitch { font-size: 15.5px; }
  .fc1 { top: -16px; right: -6px; }
  .fc2 { bottom: -14px; left: -4px; }
  .timeline, .stats, .metrics, .grid4, .tri, .trust-items { grid-template-columns: 1fr 1fr; }
  .tri { grid-template-columns: 1fr; }
  .page-hero { padding: 64px 0 56px; }
  .page-hero__aside { margin-top: 24px; }
  .scene-detail { padding: 56px 0; }
  .scene-detail__grid { grid-template-columns: 1fr; gap: 16px; }
  .scene-flow { grid-template-columns: 1fr; }
  .scene-col + .scene-col { border-left: 0; border-top: 1px solid var(--line); }
  .compare-row { grid-template-columns: 1fr; }
  .compare-before { border-right: 0; border-bottom: 1px solid var(--line); }
  .compare-head { display: none; }
  .principle-list { grid-template-columns: 1fr; }
  .principle-item + .principle-item { border-left: 0; border-top: 1px solid var(--line); }
  .principle-item:nth-child(3) { border-top: 1px solid var(--line); }
  .contact-panel, .cta-band { padding: 44px 28px; }
  .trustband { padding: 32px 24px; }
  .notice { grid-template-columns: 1fr; gap: 10px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { display: block; }
  .footer-bottom p + p { margin-top: 8px; }
}

@media (max-width: 560px) {
  .timeline, .stats, .metrics, .grid4, .trust-items { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .timeline { gap: 14px; }
  .brand img { width: 124px; }
  .p-row { font-size: 11.5px; }
  .cta-row { align-items: stretch; flex-direction: column; }
  .btn-p, .btn-s { width: 100%; }
  .hero .mini { gap: 8px 14px; }
  .contact-row { grid-template-columns: 1fr; gap: 4px; }
  .faq-a { padding-right: 16px; }
  .process-step { grid-template-columns: 40px 1fr; padding: 32px 0; }
  .process-meta { grid-column: 1 / -1; grid-template-columns: 1fr; padding-left: 56px; }
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .float-card { animation: none; }
  .hero::after { animation: none; opacity: 0; }
  .js [data-reveal] { opacity: 1; transform: none; }
}

/* ===== 平台能力截图展示（真界面，不说教） ===== */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.shot{margin:0;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 12px 28px -20px rgba(22,48,46,.25);transition:transform .25s ease, box-shadow .25s ease}
.shot:hover{transform:translateY(-4px);box-shadow:0 22px 40px -22px rgba(0,153,139,.35)}
.shot img{display:block;width:100%;height:auto;border-bottom:1px solid var(--line)}
.shot figcaption{padding:13px 16px;font-size:14px;font-weight:700}
.trust-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.trust-shot{box-shadow:0 18px 36px -22px rgba(22,48,46,.3)}
@media (max-width:860px){.shots{grid-template-columns:1fr 1fr}.trust-grid{grid-template-columns:1fr}}
@media (max-width:560px){.shots{grid-template-columns:1fr}}