/* ===========================================================
   TOBI 拓比科技 · 官网首页 v3.0
   设计令牌沿用品牌深蓝 + 信号橙红，新增技术青用于精度指标
   =========================================================== */

:root {
  --navy-950: #050f1c;
  --navy-900: #081d31;
  --navy-800: #0f2c46;
  --navy-700: #16405f;
  --navy-600: #1e5478;

  --signal-600: #e95742;
  --signal-700: #c94232;
  --signal-500: #ff745e;
  --signal-100: #ffede9;

  --cyan-500: #22b8cf;
  --cyan-400: #4dd4e8;
  --cyan-100: #e0f7fa;

  --mist-50: #f7fafc;
  --mist-100: #eef2f7;
  --mist-200: #e2e8f0;
  --mist-300: #cbd5e0;
  --mist-400: #a0aec0;
  --mist-600: #5a6b7f;
  --mist-700: #41505f;
  --mist-900: #1a202c;

  --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, monospace;

  --shell: 1240px;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;

  --shadow-card: 0 1px 2px rgba(8, 29, 49, .05), 0 12px 32px -12px rgba(8, 29, 49, .14);
  --shadow-lift: 0 2px 4px rgba(8, 29, 49, .06), 0 24px 56px -20px rgba(8, 29, 49, .26);
  --shadow-glow: 0 24px 64px -24px rgba(8, 29, 49, .34);

  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--navy-900);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 { margin: 0; line-height: 1.24; letter-spacing: -.015em; font-weight: 800; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 3px solid var(--signal-600);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--navy-900); color: #fff; }

/* ---------- 布局骨架 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 92px 0; }
.section--tight { padding: 68px 0; }
.section--mist { background: var(--mist-50); }
.section--line { border-top: 1px solid var(--mist-200); }

.section--dark {
  background:
    radial-gradient(900px 460px at 12% -10%, rgba(34, 184, 207, .16), transparent 62%),
    radial-gradient(800px 420px at 92% 8%, rgba(233, 87, 66, .16), transparent 60%),
    linear-gradient(168deg, var(--navy-950) 0%, var(--navy-900) 48%, var(--navy-800) 100%);
  color: #fff;
}
.section--dark h2, .section--dark h3 { color: #fff; }
/* 深色区内的白底卡片需恢复深色文字 */
.section--dark .formcard h3,
.section--dark .formcard h4,
.section--dark .formcard h5 { color: var(--navy-900); }
.section--dark .formcard .note { color: var(--mist-600); }

/* ---------- 通用文本元件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--signal-700);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--signal-600);
  border-radius: 2px;
}
.section--dark .eyebrow { color: var(--cyan-400); }
.section--dark .eyebrow::before { background: var(--cyan-500); }

.section-head { max-width: 780px; }
.section-head--wide { max-width: 900px; }

.section-title {
  margin-top: 16px;
  font-size: clamp(27px, 3.6vw, 41px);
  font-weight: 850;
}

.section-lead {
  margin-top: 18px;
  font-size: clamp(15.5px, 1.35vw, 17.5px);
  line-height: 1.82;
  color: var(--mist-700);
}
.section--dark .section-lead { color: rgba(255, 255, 255, .76); }

/* 条件说明：广告法要求同屏可见，最小 13px，对比度达标 */
.note {
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist-700);
}
.section--dark .note { color: rgba(255, 255, 255, .66); }

.note--block {
  margin-top: 14px;
  padding: 13px 15px;
  background: var(--mist-50);
  border-left: 3px solid var(--mist-300);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.section--dark .note--block {
  background: rgba(255, 255, 255, .05);
  border-left-color: rgba(255, 255, 255, .24);
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 750;
  letter-spacing: .01em;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--signal-600);
  color: #fff;
  box-shadow: 0 10px 26px -10px rgba(233, 87, 66, .62);
}
.btn--primary:hover { background: var(--signal-700); box-shadow: 0 16px 34px -12px rgba(233, 87, 66, .7); }

.btn--ghost {
  background: #fff;
  color: var(--navy-900);
  border-color: var(--mist-300);
}
.btn--ghost:hover { border-color: var(--navy-900); box-shadow: var(--shadow-card); }

.btn--onDark {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border-color: rgba(255, 255, 255, .3);
  backdrop-filter: blur(8px);
}
.btn--onDark:hover { background: rgba(255, 255, 255, .18); border-color: rgba(255, 255, 255, .5); }

.btn--sm { padding: 10px 18px; font-size: 14px; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14.5px;
  font-weight: 750;
  color: var(--signal-700);
}
.link-arrow span { transition: transform .18s ease; }
.link-arrow:hover span { transform: translateX(4px); }
.section--dark .link-arrow { color: var(--cyan-400); }

/* ---------- 顶部导航 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--mist-200);
}
.masthead__row {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 22px;
}
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand__mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 11px;
  background: linear-gradient(140deg, var(--navy-900), var(--navy-700));
  color: #fff; font-weight: 900; font-size: 17px; letter-spacing: .02em;
}
.brand__name { font-size: 17px; font-weight: 900; letter-spacing: .1em; line-height: 1.2; }
.brand__tag { font-size: 11px; color: var(--mist-600); letter-spacing: .04em; line-height: 1.3; }

.mainnav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.mainnav a {
  padding: 9px 13px;
  border-radius: 9px;
  font-size: 14.5px;
  font-weight: 650;
  color: var(--mist-700);
  transition: background .16s ease, color .16s ease;
}
.mainnav a:hover { background: var(--mist-100); color: var(--navy-900); }

.masthead__aside { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.langswitch { display: flex; gap: 2px; padding: 3px; background: var(--mist-100); border-radius: 999px; }
.langswitch button {
  padding: 5px 11px; border: 0; border-radius: 999px; background: transparent;
  font-size: 12.5px; font-weight: 750; color: var(--mist-600);
}
.langswitch button[aria-pressed="true"] { background: #fff; color: var(--navy-900); box-shadow: 0 1px 3px rgba(8, 29, 49, .14); }

.tel-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 13.5px; font-weight: 700; color: var(--navy-900);
}
.tel-link:hover { color: var(--signal-700); }

.navtoggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--mist-300); border-radius: 11px;
  background: #fff;
  align-items: center; justify-content: center;
}
.navtoggle svg { width: 20px; height: 20px; }

.drawer {
  display: none;
  padding: 10px 0 18px;
  border-top: 1px solid var(--mist-200);
}
.drawer.is-open { display: block; }
.drawer a {
  display: block; padding: 12px 4px;
  font-size: 15.5px; font-weight: 650;
  border-bottom: 1px solid var(--mist-100);
}
.drawer__cta { margin-top: 16px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1000px 520px at 8% -8%, rgba(34, 184, 207, .2), transparent 60%),
    radial-gradient(880px 460px at 96% 4%, rgba(233, 87, 66, .2), transparent 58%),
    linear-gradient(166deg, var(--navy-950) 0%, var(--navy-900) 46%, var(--navy-800) 100%);
  color: #fff;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  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: 62px 62px;
  mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 38%, transparent 74%);
  -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 38%, transparent 74%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1.02fr;
  gap: 56px;
  align-items: center;
  padding: 76px 0 0;
}
.hero .eyebrow { color: var(--cyan-400); }
.hero .eyebrow::before { background: var(--cyan-500); }

.hero__title {
  margin-top: 20px;
  font-size: clamp(38px, 5.4vw, 62px);
  font-weight: 880;
  letter-spacing: -.03em;
}
.hero__title-en {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.5vw, 19px);
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan-400);
}
.hero__lead {
  margin-top: 24px;
  max-width: 620px;
  font-size: clamp(15.5px, 1.4vw, 17.5px);
  line-height: 1.85;
  color: rgba(255, 255, 255, .82);
}
.hero__lead strong { color: #fff; font-weight: 750; }

.chips { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 9px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 999px;
  background: rgba(255, 255, 255, .07);
  font-size: 13px; font-weight: 650;
  color: rgba(255, 255, 255, .9);
}
.chip__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan-400); flex-shrink: 0; }
.chip--live .chip__dot { background: #4ade80; box-shadow: 0 0 0 3px rgba(74, 222, 128, .24); }

.hero__actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }

.hero__figure { position: relative; }
.hero__figure img {
  width: 100%;
  filter: drop-shadow(0 42px 68px rgba(0, 0, 0, .55));
}
.hero__badge {
  position: absolute;
  left: 0; bottom: -6px;
  padding: 11px 16px;
  border-radius: var(--radius-md);
  background: rgba(5, 15, 28, .74);
  border: 1px solid rgba(255, 255, 255, .16);
  backdrop-filter: blur(10px);
}
.hero__badge b { display: block; font-size: 13.5px; font-weight: 800; }
.hero__badge span { display: block; margin-top: 2px; font-size: 12px; color: rgba(255, 255, 255, .68); }

/* Hero 数据条 */
.metricbar {
  position: relative; z-index: 1;
  margin-top: 62px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.metric {
  padding: 30px 26px 34px;
  border-right: 1px solid rgba(255, 255, 255, .1);
}
.metric:first-child { padding-left: 0; }
.metric:last-child { border-right: 0; padding-right: 0; }
.metric__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3vw, 37px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--cyan-400);
  line-height: 1.1;
}
.metric__label { margin-top: 9px; font-size: 14px; font-weight: 750; color: #fff; }
.metric__note { margin-top: 8px; font-size: 13px; line-height: 1.65; color: rgba(255, 255, 255, .6); }

/* ---------- 卡片通用 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--mist-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card--hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: var(--mist-300); }
.card__body { padding: 26px 26px 28px; }

.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- S2 行业背景 ---------- */
.factcard { padding: 28px 26px 30px; background: #fff; border: 1px solid var(--mist-200); border-radius: var(--radius-lg); }
.factcard__num {
  font-family: var(--font-mono);
  font-size: clamp(29px, 3.2vw, 38px);
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -.02em;
  line-height: 1.12;
}
.factcard__num em { font-style: normal; color: var(--signal-600); }
.factcard__text { margin-top: 13px; font-size: 15px; line-height: 1.76; color: var(--mist-700); }
.factcard__src {
  margin-top: 15px; padding-top: 13px;
  border-top: 1px dashed var(--mist-300);
  font-size: 13px; line-height: 1.62; color: var(--mist-600);
}

.callout {
  margin-top: 30px;
  padding: 30px 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--navy-900), var(--navy-700));
  color: #fff;
}
.callout p { font-size: clamp(16.5px, 1.6vw, 20px); font-weight: 750; line-height: 1.62; }
.callout .note { margin-top: 13px; color: rgba(255, 255, 255, .68); }

/* ---------- S3 采购路径 ---------- */
.route { display: flex; flex-direction: column; height: 100%; }
.route__idx {
  font-family: var(--font-mono);
  font-size: 12.5px; font-weight: 800; letter-spacing: .1em;
  color: var(--signal-600);
}
.route__title { margin-top: 12px; font-size: 19px; font-weight: 800; }
.route__desc { margin-top: 11px; font-size: 14.5px; line-height: 1.74; color: var(--mist-700); }
.route__deliver {
  margin-top: 16px; padding-top: 15px;
  border-top: 1px solid var(--mist-200);
  font-size: 13px; line-height: 1.68; color: var(--mist-600);
}
.route__deliver b { display: block; margin-bottom: 4px; color: var(--navy-900); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.route__cta { margin-top: auto; padding-top: 18px; }

/* ---------- S4 设备 ---------- */
.statusflag {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px; font-weight: 800; letter-spacing: .02em;
}
.statusflag--live { background: #dcfce7; color: #166534; }
.statusflag--soon { background: var(--signal-100); color: var(--signal-700); }
.statusflag--dev { background: var(--cyan-100); color: #0e7490; }
.statusflag i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* E6 旗舰主卡 */
.flagship {
  background: #fff;
  border: 1px solid var(--mist-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.flagship__top {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 0;
}
.flagship__gallery {
  position: relative;
  padding: 34px;
  background: linear-gradient(154deg, var(--navy-900) 0%, var(--navy-800) 62%, var(--navy-700) 100%);
  display: flex; flex-direction: column; gap: 16px; justify-content: flex-start;
}
.flagship__gallery::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 32% 30%, rgba(59, 130, 246, .18), transparent 60%);
  pointer-events: none;
}
.flagship__hero-img {
  position: relative; z-index: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .13);
  background: #05080d;
  box-shadow: 0 24px 50px rgba(0, 0, 0, .44);
}
.flagship__hero-img img { width: 100%; display: block; }
.flagship__thumbs { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.flagship__thumb {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .04);
}
.flagship__thumb img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.flagship__thumb figcaption {
  padding: 8px 10px 10px;
  font-size: 12px; line-height: 1.5;
  color: rgba(255, 255, 255, .68);
}
.flagship__info { padding: 36px 34px 34px; }
.flagship__name { margin-top: 15px; font-size: clamp(24px, 2.6vw, 31px); font-weight: 850; }
.flagship__sub { margin-top: 13px; font-size: 15.5px; line-height: 1.78; color: var(--mist-700); }

.speclist { margin-top: 24px; display: grid; gap: 2px; }
.specrow {
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 18px;
  padding: 15px 0;
  border-top: 1px solid var(--mist-200);
}
.specrow:last-child { border-bottom: 1px solid var(--mist-200); }
.specrow__k { font-size: 13.5px; font-weight: 750; color: var(--navy-900); line-height: 1.6; }
.specrow__v { font-size: 14.5px; line-height: 1.72; color: var(--mist-700); }
.specrow__v b { color: var(--navy-900); font-weight: 750; }
.specrow__v .mono { color: var(--navy-900); font-weight: 700; }
.specrow__v .note { margin-top: 6px; }

.warnrow { background: var(--signal-100); border-radius: var(--radius-sm); padding: 15px 16px; margin-top: 2px; }
.warnrow .specrow__k, .warnrow .specrow__v b { color: var(--signal-700); }

/* 数据输出清单 */
.datatable-wrap { margin-top: 26px; border: 1px solid var(--mist-200); border-radius: var(--radius-md); overflow: hidden; }
.datatable-wrap > h4 {
  padding: 14px 18px;
  background: var(--mist-50);
  border-bottom: 1px solid var(--mist-200);
  font-size: 14px; font-weight: 800;
}
table.dt { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.dt th, table.dt td { padding: 11px 18px; text-align: left; border-bottom: 1px solid var(--mist-100); line-height: 1.6; }
table.dt th { font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--mist-600); background: #fff; }
table.dt tbody tr:last-child td { border-bottom: 0; }
table.dt td:first-child { font-family: var(--font-mono); font-weight: 700; color: var(--navy-900); white-space: nowrap; }
table.dt td b { color: var(--navy-900); }

details.spec {
  margin-top: 22px;
  border: 1px solid var(--mist-200);
  border-radius: var(--radius-md);
  overflow: hidden;
}
details.spec > summary {
  padding: 15px 18px;
  background: var(--mist-50);
  font-size: 14px; font-weight: 750;
  cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  list-style: none;
}
details.spec > summary::-webkit-details-marker { display: none; }
details.spec > summary::after { content: "＋"; font-family: var(--font-mono); font-weight: 700; color: var(--signal-600); }
details.spec[open] > summary::after { content: "－"; }
details.spec > div { padding: 6px 18px 18px; }

/* E2 / E8 双卡 */
.devcard { display: flex; flex-direction: column; overflow: hidden; height: 100%; }
.devcard__media {
  padding: 26px;
  background: linear-gradient(150deg, var(--navy-900), var(--navy-800));
  display: grid; place-items: center;
  min-height: 210px;
}
.devcard__media img { max-height: 190px; width: auto; filter: drop-shadow(0 20px 34px rgba(0, 0, 0, .48)); }
.devcard__body { padding: 26px; display: flex; flex-direction: column; flex: 1; }
.devcard__usecase {
  margin-top: 20px;
  padding: 16px 18px;
  background: var(--mist-50);
  border: 1px solid var(--mist-200);
  border-radius: var(--radius-sm);
}
.devcard__usecase h5 {
  margin: 0 0 9px;
  font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  color: var(--signal-700);
}
.devcard__usecase p { font-size: 13.5px; line-height: 1.72; color: var(--mist-700); }

/* E6 双版本对比小块 */
.variants { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.variant {
  padding: 14px 15px;
  border: 1px solid var(--mist-200);
  border-radius: var(--radius-sm);
  background: var(--mist-50);
}
.variant b {
  display: block;
  font-size: 11.5px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase;
  color: var(--signal-700);
}
.variant .v-res {
  display: block; margin-top: 7px;
  font-family: var(--font-mono); font-size: 15px; font-weight: 750; color: var(--navy-900);
}
.variant .v-note { display: block; margin-top: 7px; font-size: 12.5px; line-height: 1.62; color: var(--mist-700); }
@media (max-width: 720px) { .variants { grid-template-columns: 1fr; } }
.devcard__name { margin-top: 13px; font-size: 22px; font-weight: 830; }
.devcard__sub { margin-top: 11px; font-size: 14.5px; line-height: 1.74; color: var(--mist-700); }
.devcard__cta { margin-top: auto; padding-top: 20px; }

/* 配件三卡 */
.acc { overflow: hidden; height: 100%; display: flex; flex-direction: column; }
.acc__media {
  background: linear-gradient(150deg, var(--navy-900), var(--navy-800));
  border-bottom: 1px solid var(--mist-200);
  padding: 20px;
  display: grid; place-items: center;
  min-height: 178px;
}
.acc__media img { max-height: 152px; width: auto; filter: drop-shadow(0 14px 26px rgba(0, 0, 0, .45)); }
.acc__body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.acc__name { margin-top: 11px; font-size: 17px; font-weight: 800; }
.acc__spec { margin-top: 11px; font-size: 13.5px; line-height: 1.72; color: var(--mist-700); }

/* 对比表 */
.cmp-wrap {
  margin-top: 30px;
  border: 1px solid var(--mist-200);
  border-radius: var(--radius-lg);
  background: #fff;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
table.cmp { width: 100%; min-width: 880px; border-collapse: collapse; font-size: 13.5px; }
table.cmp th, table.cmp td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--mist-100); line-height: 1.62; vertical-align: top; }
table.cmp thead th {
  position: sticky; top: 0;
  background: var(--navy-900); color: #fff;
  font-size: 12.5px; font-weight: 800; letter-spacing: .04em;
  border-bottom: 0;
}
table.cmp thead th:last-child { background: var(--navy-700); }
table.cmp tbody th {
  font-size: 13px; font-weight: 780; color: var(--navy-900);
  background: var(--mist-50);
  white-space: nowrap;
}
table.cmp td:last-child { background: var(--mist-50); color: var(--mist-700); }
table.cmp tbody tr:last-child th, table.cmp tbody tr:last-child td { border-bottom: 0; }
.cell-strong { color: var(--navy-900); font-weight: 750; }
.cell-na { color: var(--mist-400); }

/* ---------- S5 工程验证 ---------- */
.evd-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 24px; align-items: start; }

.evd-card {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: var(--radius-lg);
  padding: 26px 26px 28px;
}
.evd-card__title { font-size: 17px; font-weight: 800; }
.evd-figure { margin-top: 18px; border-radius: var(--radius-md); overflow: hidden; border: 1px solid rgba(255, 255, 255, .12); }
.evd-figure img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.evd-figure figcaption { padding: 10px 13px; background: rgba(0, 0, 0, .3); font-size: 12.5px; line-height: 1.58; color: rgba(255, 255, 255, .68); }

table.evd { width: 100%; border-collapse: collapse; font-size: 13.5px; margin-top: 18px; }
table.evd th, table.evd td { padding: 11px 12px; text-align: left; border-bottom: 1px solid rgba(255, 255, 255, .1); line-height: 1.58; }
table.evd thead th { font-size: 11.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: rgba(255, 255, 255, .58); }
table.evd tbody th { font-weight: 750; color: #fff; white-space: nowrap; }
table.evd td { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: rgba(255, 255, 255, .84); }
table.evd .hi { color: var(--cyan-400); font-weight: 800; }
table.evd tbody tr:last-child th, table.evd tbody tr:last-child td { border-bottom: 0; }
table.evd .txt { font-family: var(--font-sans); }

.verdict {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 999px;
  font-family: var(--font-sans); font-size: 11.5px; font-weight: 800; letter-spacing: .04em;
}
.verdict--pass { background: rgba(74, 222, 128, .18); color: #86efac; }
.verdict--check { background: rgba(251, 191, 36, .18); color: #fcd34d; }
.verdict--na { background: rgba(255, 255, 255, .1); color: rgba(255, 255, 255, .6); }

.stdlist { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 7px; }
.stdlist li {
  padding: 6px 11px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 7px;
  background: rgba(255, 255, 255, .04);
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, .82);
}

.labgrid { margin-top: 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.labgrid figure { margin: 0; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid rgba(255, 255, 255, .12); }
.labgrid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.labgrid figcaption { padding: 9px 11px; background: rgba(0, 0, 0, .32); font-size: 12px; line-height: 1.5; color: rgba(255, 255, 255, .7); }

.capbox { margin-top: 18px; }
.capbox h5 { margin: 0 0 9px; font-size: 13px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--cyan-400); }
.capbox p { font-size: 14px; line-height: 1.76; color: rgba(255, 255, 255, .78); }

/* ---------- S6 采集服务流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 34px; }
.flowstep { position: relative; padding: 24px 20px 26px; background: #fff; border: 1px solid var(--mist-200); border-radius: var(--radius-md); }
.flowstep__n {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: var(--navy-900); color: #fff;
  font-family: var(--font-mono); font-size: 13px; font-weight: 800;
}
.flowstep__t { margin-top: 14px; font-size: 16px; font-weight: 800; }
.flowstep__d { margin-top: 10px; font-size: 13.5px; line-height: 1.72; color: var(--mist-700); }
.flowstep__o { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--mist-300); font-size: 12.5px; color: var(--signal-700); font-weight: 700; }

.platgrid { margin-top: 34px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.platcard { overflow: hidden; }
.platcard__media { border-bottom: 1px solid var(--mist-200); background: var(--mist-50); }
.platcard__media img { width: 100%; aspect-ratio: 16/10; object-fit: cover; object-position: top left; }
.platcard__body { padding: 24px; }
.platcard__t { font-size: 18px; font-weight: 800; }
.platcard__l { margin-top: 12px; font-size: 14px; line-height: 1.76; color: var(--mist-700); }
.bullets { margin-top: 14px; display: grid; gap: 9px; }
.bullets li { position: relative; padding-left: 22px; font-size: 13.5px; line-height: 1.7; color: var(--mist-700); }
.bullets li::before {
  content: ""; position: absolute; left: 4px; top: 9px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--signal-600);
}
.section--dark .bullets li { color: rgba(255, 255, 255, .78); }
.section--dark .bullets li::before { background: var(--cyan-400); }

.scenestrip { margin-top: 30px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scenestrip figure { margin: 0; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--mist-200); background: #fff; }
.scenestrip img { width: 100%; aspect-ratio: 16/10; object-fit: cover; background: var(--navy-900); }
.scenestrip figcaption { padding: 12px 15px; font-size: 13px; line-height: 1.62; color: var(--mist-700); }

/* ---------- S7 数据资产 ---------- */
.modality { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.modality li {
  padding: 8px 14px;
  border: 1px solid var(--mist-300);
  border-radius: 999px;
  background: #fff;
  font-size: 13.5px; font-weight: 650;
  color: var(--navy-900);
}
.modality li .mono { color: var(--signal-700); font-size: 12px; margin-left: 4px; }

/* ---------- S8 开发者 ---------- */
.devgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: center; }
.appshots { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.appshots figure { margin: 0; border-radius: var(--radius-md); overflow: hidden; border: 1px solid rgba(255, 255, 255, .14); background: rgba(255, 255, 255, .04); }
.appshots img { width: 100%; }
.appshots figcaption { padding: 10px 12px; font-size: 12.5px; line-height: 1.55; color: rgba(255, 255, 255, .68); }

.codeblock {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, .38);
  border: 1px solid rgba(255, 255, 255, .12);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .84);
  overflow-x: auto;
}
.codeblock .c { color: rgba(255, 255, 255, .48); }
.codeblock .k { color: var(--cyan-400); }

/* ---------- S9 定制能力 ---------- */
.custcol h4 { font-size: 15px; font-weight: 800; display: flex; align-items: center; gap: 9px; }
.custcol h4 i { width: 8px; height: 8px; border-radius: 50%; background: var(--signal-600); }
.custcol ul { margin-top: 15px; display: grid; gap: 10px; }
.custcol li { font-size: 13.5px; line-height: 1.7; color: var(--mist-700); padding-left: 17px; position: relative; }
.custcol li::before { content: "—"; position: absolute; left: 0; color: var(--mist-400); }

/* ---------- S11 表单 ---------- */
.formzone { display: grid; grid-template-columns: .88fr 1.12fr; gap: 40px; align-items: start; }

.formaside__title { font-size: clamp(25px, 2.8vw, 34px); font-weight: 850; }
.formaside__lead { margin-top: 16px; font-size: 15.5px; line-height: 1.82; color: rgba(255, 255, 255, .78); }
.contactlist { margin-top: 28px; display: grid; gap: 16px; }
.contactlist li { display: flex; gap: 13px; align-items: flex-start; }
.contactlist .ci {
  width: 36px; height: 36px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .16);
}
.contactlist .ci svg { width: 17px; height: 17px; }
.contactlist b { display: block; font-size: 11.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: rgba(255, 255, 255, .55); }
.contactlist span { display: block; margin-top: 3px; font-size: 14.5px; font-weight: 700; }
.contactlist a:hover span { color: var(--cyan-400); }

.promise { margin-top: 28px; padding: 20px 22px; border-radius: var(--radius-md); background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .13); }
.promise h5 { margin: 0; font-size: 13px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--cyan-400); }
.promise ul { margin-top: 13px; display: grid; gap: 9px; }
.promise li { position: relative; padding-left: 22px; font-size: 13.5px; line-height: 1.68; color: rgba(255, 255, 255, .8); }
.promise li::before { content: "✓"; position: absolute; left: 0; color: var(--cyan-400); font-weight: 800; }

.formcard { background: #fff; border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-glow); }
.formcard__t { font-size: 20px; font-weight: 830; color: var(--navy-900); }
.formcard__s { margin-top: 8px; font-size: 13.5px; color: var(--mist-600); }
.formcard .consent span { color: var(--mist-700); }
.formcard .ferr { color: var(--signal-700); }

.fgrid { margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; }
.field--full { grid-column: 1 / -1; }
.flabel { font-size: 13px; font-weight: 780; color: var(--navy-900); margin-bottom: 7px; }
.flabel em { font-style: normal; color: var(--signal-600); margin-left: 2px; }

.fctrl {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--mist-300);
  border-radius: var(--radius-sm);
  background: #fff;
  font-family: inherit;
  font-size: 14.5px;
  color: var(--navy-900);
  transition: border-color .16s ease, box-shadow .16s ease;
}
.fctrl::placeholder { color: var(--mist-400); }
.fctrl:hover { border-color: var(--mist-400); }
.fctrl:focus { outline: 0; border-color: var(--signal-600); box-shadow: 0 0 0 4px rgba(233, 87, 66, .13); }
.fctrl[aria-invalid="true"] { border-color: var(--signal-600); background: #fff8f7; }
textarea.fctrl { min-height: 112px; resize: vertical; line-height: 1.7; }
select.fctrl {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235a6b7f' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  background-size: 17px;
  padding-right: 40px;
}

.ferr { margin-top: 6px; font-size: 12.5px; font-weight: 700; color: var(--signal-700); display: none; }
.ferr.is-on { display: block; }

.consent {
  grid-column: 1 / -1;
  display: flex; gap: 12px; align-items: flex-start;
  padding: 16px;
  background: var(--mist-50);
  border: 1px solid var(--mist-200);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.consent input { margin: 3px 0 0; width: 17px; height: 17px; flex-shrink: 0; accent-color: var(--signal-600); }
.consent span { font-size: 13px; line-height: 1.7; color: var(--mist-700); }
.consent a { color: var(--navy-900); font-weight: 700; text-decoration: underline; }

.fstatus { margin-top: 18px; padding: 15px 17px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 700; line-height: 1.68; display: none; }
.fstatus.is-on { display: block; }
.fstatus--ok { background: #dcfce7; color: #14532d; }
.fstatus--err { background: var(--signal-100); color: var(--signal-700); }

/* ---------- 页脚 ---------- */
.footer { background: var(--navy-950); color: #fff; padding: 62px 0 0; }
.footer__top { display: grid; grid-template-columns: 1.5fr repeat(3, .85fr); gap: 40px; }
.footer__brand .brand__mark { background: #fff; color: var(--navy-900); }
.footer__note { margin-top: 22px; max-width: 420px; font-size: 13px; line-height: 1.78; color: rgba(255, 255, 255, .56); }
.footcol h5 { margin: 0 0 16px; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: rgba(255, 255, 255, .92); }
.footcol a { display: block; padding: 5px 0; font-size: 14px; color: rgba(255, 255, 255, .62); transition: color .16s ease; }
.footcol a:hover { color: #fff; }
.footer__bottom {
  margin-top: 48px;
  padding: 22px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  display: flex; flex-wrap: wrap; gap: 8px 22px;
  font-size: 12.5px; color: rgba(255, 255, 255, .46);
}

/* ---------- 移动端固定 CTA ---------- */
.mcta {
  position: fixed; inset-inline: 0; bottom: 0; z-index: 80;
  padding: 11px 16px calc(11px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--mist-200);
  transform: translateY(100%);
  transition: transform .28s ease;
  display: none;
}
.mcta.is-on { transform: translateY(0); }

/* ---------- 滚动入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .62s ease, transform .62s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .btn:hover, .card--hover:hover { transform: none; }
}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width: 1180px) {
  .mainnav a { padding: 9px 10px; font-size: 14px; }
  .brand__tag { display: none; }
}

@media (max-width: 1024px) {
  .mainnav, .masthead__aside .tel-link, .masthead__aside .btn { display: none; }
  .navtoggle { display: flex; margin-left: auto; }
  .masthead__aside { margin-left: 0; }

  .hero__inner { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; }
  .hero__figure { order: -1; max-width: 560px; }
  .metricbar { grid-template-columns: 1fr 1fr; margin-top: 44px; }
  .metric { padding: 24px 20px 26px; }
  .metric:nth-child(2) { border-right: 0; padding-right: 0; }
  .metric:nth-child(3) { padding-left: 0; border-top: 1px solid rgba(255, 255, 255, .1); }
  .metric:nth-child(4) { border-top: 1px solid rgba(255, 255, 255, .1); }

  .flagship__top { grid-template-columns: 1fr; }
  .flagship__info { padding: 30px 26px; }
  .evd-grid, .devgrid, .formzone, .platgrid { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .labgrid { grid-template-columns: 1fr 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .mcta { display: block; }
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .section--tight { padding: 48px 0; }
  .shell { padding: 0 18px; }

  .hero__inner { padding-top: 44px; }
  .metricbar { grid-template-columns: 1fr; margin-top: 36px; }
  .metric { padding: 22px 0; border-right: 0; border-top: 1px solid rgba(255, 255, 255, .1); }
  .metric:first-child { border-top: 0; }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .flow, .scenestrip, .labgrid, .appshots { grid-template-columns: 1fr; }
  .fgrid { grid-template-columns: 1fr; }
  .specrow { grid-template-columns: 1fr; gap: 5px; }
  .flagship__thumbs { grid-template-columns: 1fr; }
  .formcard { padding: 24px 20px; }
  .callout { padding: 24px 22px; }
  .footer__top { grid-template-columns: 1fr; }
  .hero__badge { position: static; margin-top: 16px; }
  body { padding-bottom: 74px; }
}

@media print {
  .masthead, .mcta, .drawer { display: none; }
  .section--dark, .hero { background: #fff !important; color: #000 !important; }
}