/* ==========================================================================
   赢筹智能 · 官网样式表
   品牌色取自公司 LOGO：蓝 #267FFF · 橙 #FF7F00
   深色背景由 LOGO 蓝的色相（215°）加深得到，保证整站色调统一。
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 品牌色 */
  --blue: #267FFF;
  --blue-600: #1570F2;
  --blue-700: #0B5AD2;
  --blue-300: #7FB2FF;
  --blue-100: #DCE9FF;
  --blue-50: #EFF5FF;
  --orange: #FF7F00;
  --orange-600: #EC7100;
  --orange-300: #FFB066;
  --orange-100: #FFE4C9;
  --orange-50: #FFF5EB;

  /* 深色（品牌蓝加深） */
  --navy-950: #040C1C;
  --navy-900: #071631;
  --navy-850: #0A1D3E;
  --navy-800: #0E2750;
  --navy-700: #183B75;

  /* 中性色 */
  --ink: #0B1426;
  --ink-2: #3F4B5F;
  --ink-3: #697488;
  --ink-4: #9AA3B2;
  --line: #E1E6ED;
  --line-2: #ECEFF4;
  --paper: #FFFFFF;
  --mist: #F4F6F9;
  --mist-2: #E9EDF2;

  --on-dark: #FFFFFF;
  --on-dark-2: rgba(255, 255, 255, .74);
  --on-dark-3: rgba(255, 255, 255, .5);
  --line-dark: rgba(255, 255, 255, .1);

  /* 字体：中文用系统字体；数字/英文用 DIN 系（Windows 自带 Bahnschrift，苹果自带 DIN Alternate） */
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "DIN Pro", "D-DIN", "Barlow", "Roboto Condensed", "Helvetica Neue", Arial, sans-serif;

  --container: 1240px;
  --gutter: clamp(20px, 4vw, 40px);
  --section-y: clamp(84px, 10vw, 144px);
  --header-h: 76px;

  --r-sm: 10px;
  --r: 16px;
  --r-lg: 22px;
  --r-xl: 30px;

  --shadow-sm: 0 1px 2px rgba(11, 20, 38, .05), 0 4px 14px -6px rgba(11, 20, 38, .1);
  --shadow: 0 1px 2px rgba(11, 20, 38, .04), 0 18px 40px -18px rgba(11, 20, 38, .2);
  --shadow-lg: 0 2px 6px rgba(11, 20, 38, .05), 0 40px 80px -32px rgba(11, 20, 38, .34);

  --ease: cubic-bezier(.22, .8, .24, 1);
  --ease-io: cubic-bezier(.65, 0, .35, 1);

  --spark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 0c.7 5.6 1.8 7.8 3.6 9.5 1.8 1.8 4.2 2.5 8.4 2.5-4.2 0-6.6.7-8.4 2.5C13.8 16.2 12.7 18.4 12 24c-.7-5.6-1.8-7.8-3.6-9.5C6.6 12.7 4.2 12 0 12c4.2 0 6.6-.7 8.4-2.5C10.2 7.8 11.3 5.6 12 0z'/%3E%3C/svg%3E");
}

@media (max-width: 640px) {
  :root { --header-h: 64px; }
}

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.8 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
@supports (overflow: clip) { body { overflow-x: clip; } }

h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--blue); color: #fff; }
[hidden] { display: none !important; }
.js .page-view:not(.is-page-active) { display: none; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.i { width: 22px; height: 22px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.i--sm { width: 18px; height: 18px; }
.i--xs { width: 14px; height: 14px; stroke-width: 2; }
.i--lg { width: 28px; height: 28px; stroke-width: 1.5; }

.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 100;
  padding: 10px 18px; border-radius: 10px; background: var(--ink); color: #fff; font-size: 14px;
  transition: top .2s;
}
.skip-link:focus { top: 12px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; letter-spacing: .01em; }

/* ---------- 3. 布局 ---------- */
.container { width: min(100% - var(--gutter) * 2, var(--container)); margin-inline: auto; }
.container--narrow { --container: 880px; }
.section { position: relative; padding-block: var(--section-y); }
.section--mist { background: var(--mist); }
.section--dark { background: var(--navy-900); color: var(--on-dark); }
.section--tight { padding-block: clamp(56px, 7vw, 96px); }
.section + .section--flush-top { padding-top: 0; }

/* ---------- 4. 文字 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 600 12.5px/1.2 var(--font-num); letter-spacing: .2em; text-transform: uppercase;
  color: var(--orange);
}
.eyebrow::before {
  content: ""; width: 11px; height: 11px; flex: none; background: currentColor;
  -webkit-mask: var(--spark) center / contain no-repeat; mask: var(--spark) center / contain no-repeat;
}
.eyebrow--light { color: var(--orange-300); }
.eyebrow--blue { color: var(--blue); }

.h-display { font-size: clamp(42px, 5.8vw, 82px); line-height: 1.1; font-weight: 600; letter-spacing: -.02em; text-wrap: balance; }
.h-1 { font-size: clamp(36px, 4.6vw, 62px); line-height: 1.14; font-weight: 600; letter-spacing: -.015em; text-wrap: balance; }
.h-2 { font-size: clamp(29px, 3.3vw, 46px); line-height: 1.24; font-weight: 600; letter-spacing: -.01em; text-wrap: balance; }
.h-3 { font-size: clamp(20px, 1.7vw, 24px); line-height: 1.42; font-weight: 600; }
.h-4 { font-size: 18px; line-height: 1.5; font-weight: 600; }
.lead { font-size: clamp(16px, 1.25vw, 18.5px); line-height: 1.9; color: var(--ink-2); text-wrap: pretty; }
.muted { color: var(--ink-3); }
.accent { color: var(--orange); }
.accent-grad {
  background: linear-gradient(100deg, var(--orange) 0%, #FF9F2E 60%, var(--orange) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.prose p + p { margin-top: 1em; }

.sec-head { display: grid; gap: 22px; margin-bottom: clamp(44px, 5.4vw, 76px); }
.sec-head .eyebrow + .h-2 { margin-top: 20px; }
.sec-head--center .eyebrow + .h-2 { margin-top: 0; }
.sec-head--split { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: end; column-gap: clamp(32px, 6vw, 96px); }
.sec-head--split > :last-child { justify-self: end; max-width: 30em; }
.sec-head--center { justify-items: center; text-align: center; }
.sec-head--center .lead { max-width: 40em; }
.sec-head__aside { display: grid; gap: 22px; justify-items: start; }
@media (max-width: 900px) {
  .sec-head--split { grid-template-columns: 1fr; }
  .sec-head--split > :last-child { justify-self: start; }
}

/* ---------- 5. 按钮与链接 ---------- */
.btn {
  --h: 52px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--h); padding: 0 26px; border-radius: 999px;
  font-size: 15.5px; font-weight: 600; letter-spacing: .02em; white-space: nowrap;
  border: 1px solid transparent;
  transition: background-color .25s, border-color .25s, color .25s, box-shadow .3s, transform .3s var(--ease);
}
.btn .i { transition: transform .3s var(--ease); }
.btn:hover .i { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }
.btn--sm { --h: 42px; padding: 0 20px; font-size: 14.5px; }
.btn--block { width: 100%; }
.btn--primary { background: var(--orange); color: #fff; box-shadow: 0 12px 26px -12px rgba(255, 127, 0, .75); }
.btn--primary:hover { background: var(--orange-600); box-shadow: 0 16px 30px -12px rgba(255, 127, 0, .85); }
.btn--dark { background: var(--navy-900); color: #fff; }
.btn--dark:hover { background: var(--navy-800); }
.btn--outline { border-color: rgba(11, 20, 38, .16); color: var(--ink); background: rgba(255, 255, 255, .6); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.btn--outline:hover { border-color: var(--ink); background: #fff; }
.btn--ghost-light { border-color: rgba(255, 255, 255, .28); color: #fff; }
.btn--ghost-light:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 15px; color: var(--blue);
}
.link-arrow .i { transition: transform .3s var(--ease); }
.link-arrow:hover .i, a:hover > .link-arrow .i { transform: translateX(4px); }
.link-arrow--light { color: #fff; }
.link-arrow--ink { color: var(--ink); }

/* ---------- 6. 页头导航 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 60; height: var(--header-h);
  color: var(--ink);
  transition: background-color .35s var(--ease), color .35s, box-shadow .35s;
}
.site-header::after {
  content: ""; position: absolute; inset: auto 0 0; height: 1px; background: var(--line);
  opacity: 0; transition: opacity .35s;
}
.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(255, 255, 255, .86);
  -webkit-backdrop-filter: saturate(1.6) blur(18px); backdrop-filter: saturate(1.6) blur(18px);
}
.site-header.is-open { background: #fff; }
.site-header.is-scrolled::after, .site-header.is-open::after { opacity: 1; }
.hero-dark .site-header:not(.is-scrolled):not(.is-open) { color: #fff; }

.site-header__inner { height: 100%; display: flex; align-items: center; gap: 28px; }

.brand { display: flex; align-items: center; gap: 12px; flex: none; color: inherit; }
.brand__mark { width: 48px; height: auto; aspect-ratio: 221.6 / 143.4; }
.brand__text { display: flex; flex-direction: column; gap: 6px; }
.brand__word { width: 88px; height: auto; aspect-ratio: 185.5 / 45.9; }
.brand__sub { font-size: 10.5px; line-height: 1; letter-spacing: .42em; opacity: .62; white-space: nowrap; }
.brand--light { color: #fff; }

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__link {
  position: relative; display: inline-flex; align-items: center; gap: 4px;
  height: 40px; padding: 0 14px; border-radius: 999px;
  font-size: 15px; font-weight: 500; opacity: .84;
  transition: opacity .2s, background-color .2s;
}
.nav__link:hover { opacity: 1; background: rgba(11, 20, 38, .05); }
.hero-dark .site-header:not(.is-scrolled):not(.is-open) .nav__link:hover { background: rgba(255, 255, 255, .1); }
.nav__link.is-active { opacity: 1; }
.nav__link::after {
  content: ""; position: absolute; left: 50%; bottom: 2px; width: 5px; height: 5px; margin-left: -2.5px;
  border-radius: 50%; background: var(--orange); opacity: 0; transform: scale(.4);
  transition: opacity .25s, transform .35s var(--ease);
}
.nav__link.is-active::after { opacity: 1; transform: scale(1); }
.nav__link .i { transition: transform .3s var(--ease); }
.nav__item--mega { position: relative; }
.nav__item--mega:hover .nav__link .i,
.nav__item--mega:focus-within .nav__link .i { transform: rotate(180deg); }

.mega {
  position: absolute; top: 100%; left: 50%; width: min(840px, calc(100vw - 48px)); padding-top: 16px;
  transform: translate(-44%, 10px); opacity: 0; visibility: hidden; color: var(--ink);
  transition: opacity .25s, transform .35s var(--ease), visibility 0s linear .35s;
}
.nav__item--mega:hover .mega,
.nav__item--mega:focus-within .mega {
  opacity: 1; visibility: visible; transform: translate(-44%, 0); transition-delay: 0s;
}
.mega__panel {
  display: grid; grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr); gap: 8px; padding: 10px;
  background: #fff; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-lg);
}
.mega__grid { display: grid; grid-template-columns: 1fr 1fr; align-content: start; gap: 2px; }
.mega__item { display: flex; gap: 14px; padding: 14px; border-radius: 14px; transition: background-color .2s; }
.mega__item:hover, .mega__item[aria-current] { background: var(--mist); }
.mega__icon {
  flex: none; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px;
  background: var(--blue-50); color: var(--blue); transition: background-color .25s, color .25s;
}
.mega__item:hover .mega__icon { background: var(--blue); color: #fff; }
.mega__item b { display: block; font-size: 15px; font-weight: 600; line-height: 1.4; }
.mega__item small { display: block; margin-top: 3px; font-size: 12.5px; line-height: 1.5; color: var(--ink-3); }
.mega__promo {
  position: relative; overflow: hidden; display: flex; align-items: flex-end;
  min-height: 236px; border-radius: 16px; background: var(--navy-900); color: #fff; isolation: isolate;
}
.mega__promo img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2;
  object-position: 50% 28%;
  transition: transform 1.2s var(--ease);
}
.mega__promo::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(to top, rgba(4, 12, 28, .92) 20%, rgba(4, 12, 28, .25));
}
.mega__promo:hover img { transform: scale(1.06); }
.mega__promo-body { display: grid; gap: 6px; padding: 22px; }
.mega__promo-body b { font-size: 18px; font-weight: 600; line-height: 1.4; }
.mega__promo-body small { font-size: 13px; color: var(--on-dark-2); }
.mega__promo-body .link-arrow { margin-top: 8px; font-size: 14px; }

.site-header__actions { display: flex; align-items: center; gap: 18px; margin-left: 8px; }
.header-cta .num { font: 600 15.5px/1 var(--font-num); letter-spacing: .04em; }

.menu-btn { display: none; position: relative; width: 44px; height: 44px; border-radius: 12px; }
.menu-btn span {
  position: absolute; left: 12px; right: 12px; height: 1.8px; border-radius: 2px; background: currentColor;
  transition: transform .35s var(--ease), top .35s var(--ease);
}
.menu-btn span:first-child { top: 17px; }
.menu-btn span:last-child { top: 25px; }
.site-header.is-open .menu-btn span { top: 21px; }
.site-header.is-open .menu-btn span:first-child { transform: rotate(45deg); }
.site-header.is-open .menu-btn span:last-child { transform: rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: var(--header-h) 0 0; z-index: 59; overflow-y: auto; overscroll-behavior: contain;
  display: flex; flex-direction: column; justify-content: space-between; gap: 32px;
  padding: 18px var(--gutter) calc(28px + env(safe-area-inset-bottom));
  background: #fff; opacity: 0; transform: translateY(-10px);
  transition: opacity .3s, transform .35s var(--ease);
}
.mobile-menu.is-open { opacity: 1; transform: none; }
.mobile-menu__nav { display: grid; }
.mobile-menu__link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 2px; font-size: 20px; font-weight: 600; border-bottom: 1px solid var(--line-2);
}
.mobile-menu__link.is-active { color: var(--orange); }
.mobile-menu__label { padding: 18px 2px 8px; font-size: 13px; color: var(--ink-3); letter-spacing: .1em; }
.mobile-menu__services { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding-bottom: 18px; border-bottom: 1px solid var(--line-2); }
.mobile-menu__services a {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px;
  background: var(--mist); font-size: 15px; font-weight: 500;
}
.mobile-menu__services .i { color: var(--blue); width: 20px; height: 20px; }
.mobile-menu__foot { display: grid; gap: 10px; }

@media (max-width: 1180px) {
  .nav__link { padding: 0 11px; }
}
@media (max-width: 1040px) {
  .nav { display: none; }
  .menu-btn { display: block; }
  .site-header__actions { margin-left: auto; gap: 10px; }
}
@media (max-width: 640px) {
  .header-cta { display: none; }
  .brand__mark { width: 42px; }
  .brand__word { width: 78px; }
}

/* ---------- 7. 装饰：轨道、网格、5S 定位角 ---------- */
.orbit { position: absolute; pointer-events: none; }
svg.orbit { height: auto; aspect-ratio: 1; overflow: visible; }
html:has(.subnav) { scroll-padding-top: calc(var(--header-h) + 76px); }
.orbit ellipse, .orbit circle { fill: none; }
.orbit .orbit__line { stroke: rgba(38, 127, 255, .28); stroke-width: 1; }
.orbit .orbit__line--dash { stroke-dasharray: 2 7; stroke: rgba(38, 127, 255, .35); }
.orbit .orbit__star { fill: var(--orange); filter: drop-shadow(0 0 6px rgba(255, 127, 0, .7)); }

.bp-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(14, 39, 80, .065) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14, 39, 80, .065) 1px, transparent 1px);
  background-size: 64px 64px;
}
.bp-grid--dark {
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .045) 1px, transparent 1px);
}

/* 5S 定置定位角标：工厂地面“四角定位”胶带的抽象 */
.corners {
  --c: var(--orange); --l: 22px; --t: 3px;
  position: absolute; inset: 14px; z-index: 2; pointer-events: none;
  background:
    linear-gradient(var(--c), var(--c)) top left / var(--l) var(--t),
    linear-gradient(var(--c), var(--c)) top left / var(--t) var(--l),
    linear-gradient(var(--c), var(--c)) top right / var(--l) var(--t),
    linear-gradient(var(--c), var(--c)) top right / var(--t) var(--l),
    linear-gradient(var(--c), var(--c)) bottom left / var(--l) var(--t),
    linear-gradient(var(--c), var(--c)) bottom left / var(--t) var(--l),
    linear-gradient(var(--c), var(--c)) bottom right / var(--l) var(--t),
    linear-gradient(var(--c), var(--c)) bottom right / var(--t) var(--l);
  background-repeat: no-repeat;
}
.corners--white { --c: #fff; }
.corners--yellow { --c: #FFC21A; }

/* ---------- 8. 首页 Hero ---------- */
.hero {
  --hero-bg: #EAEDF0;
  position: relative; isolation: isolate; overflow: hidden;
  background: var(--hero-bg);
  padding-top: calc(var(--header-h) + clamp(20px, 4vw, 56px));
}
.hero__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero__bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 640px at 8% 0%, rgba(255, 255, 255, .92), rgba(255, 255, 255, 0) 70%),
    radial-gradient(700px 520px at 100% 100%, rgba(38, 127, 255, .10), transparent 70%);
}
.hero__bg .bp-grid {
  -webkit-mask-image: radial-gradient(1100px 620px at 22% 38%, #000 10%, transparent 72%);
  mask-image: radial-gradient(1100px 620px at 22% 38%, #000 10%, transparent 72%);
}
.hero__inner {
  display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.1fr);
  align-items: center; gap: clamp(16px, 3vw, 40px);
}
.hero__copy { position: relative; z-index: 3; padding-block: clamp(20px, 3vw, 40px) clamp(28px, 4vw, 56px); }
.hero__title { margin-top: 26px; }
.hero__title .accent-grad { padding-right: .06em; }
.hero__lead { margin-top: 26px; max-width: 32em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.hero__trust { display: flex; align-items: center; gap: 12px; margin-top: 34px; font-size: 13.5px; color: var(--ink-3); }
.hero__trust .i { color: var(--blue); }

.hero__visual { position: relative; min-width: 0; padding: 14px 0 30px 8px; }
.hero__photo { position: relative; isolation: isolate; overflow: hidden; aspect-ratio: 1.16; border-radius: 24px; background: var(--navy-900); box-shadow: var(--shadow-lg); }
.hero__slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .9s var(--ease), visibility 0s linear .9s; }
.hero__slide.is-active { opacity: 1; visibility: visible; transition-delay: 0s; }
.hero__slide > img { width: 100%; height: 100%; object-fit: cover; object-position: 48% center; transform: scale(1.035); transition: transform 6.5s linear; }
.hero__slide.is-active > img { transform: scale(1); }
.hero__slide::after { content: ""; position: absolute; z-index: 0; inset: 0; background: linear-gradient(180deg, rgba(4,12,28,.08), transparent 45%, rgba(4,12,28,.82)); }
.hero__photo-tag { position: absolute; z-index: 1; top: 24px; left: 24px; padding: 7px 14px; border: 1px solid rgba(255,255,255,.45); border-radius: 30px; background: rgba(7,22,49,.5); color: #fff; font-size: 12px; letter-spacing: .08em; backdrop-filter: blur(8px); }
.hero__photo-caption { position: absolute; z-index: 1; left: 30px; right: 28px; bottom: 78px; display: grid; gap: 10px; color: #fff; transform: translateY(12px); transition: transform .8s var(--ease); }
.hero__slide.is-active .hero__photo-caption { transform: none; }
.hero__photo-caption > span { color: #FFD1A3; font: 500 11px/1.4 var(--font-num); letter-spacing: .16em; }
.hero__photo-caption b { font-size: clamp(22px, 2.2vw, 30px); line-height: 1.4; font-weight: 600; }
.hero__photo-controls { position: absolute; z-index: 2; left: 24px; right: 24px; bottom: 18px; display: none; justify-content: space-between; align-items: center; color: #fff; }
.js .hero__photo-controls { display: flex; }
.hero__dots { display: flex; gap: 2px; }
.hero__dots button { width: 40px; height: 40px; display: grid; place-items: center; }
.hero__dots span { width: 7px; height: 7px; border-radius: 8px; background: rgba(255,255,255,.45); transition: width .4s var(--ease), background-color .4s; }
.hero__dots [aria-pressed="true"] span { width: 30px; background: #fff; }
.hero__pause { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid rgba(255,255,255,.4); border-radius: 50%; background: rgba(7,22,49,.25); }
.hero__pause span { width: 10px; height: 12px; border-inline: 3px solid currentColor; }
.hero__pause[aria-pressed="true"] span { width: 0; height: 0; margin-left: 3px; border: 6px solid transparent; border-left: 10px solid currentColor; border-right: 0; }
.hero__photo button:focus-visible { outline-color: #fff; }

.hero__stats {
  position: relative; z-index: 3; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(8px, 2vw, 24px); border-top: 1px solid rgba(11, 20, 38, .1);
}
.stat { position: relative; padding: 26px 20px 38px 0; }
.stat + .stat { padding-left: clamp(18px, 2.4vw, 32px); border-left: 1px solid rgba(11, 20, 38, .08); }
.stat__num { display: flex; align-items: baseline; gap: 4px; font: 600 clamp(34px, 3.5vw, 52px)/1 var(--font-num); letter-spacing: -.01em; }
.stat__num small { font-family: var(--font-sans); font-size: .34em; font-weight: 600; color: var(--ink-2); letter-spacing: 0; }
.stat__num sup { align-self: flex-start; margin-top: -.04em; font-size: .52em; line-height: 1; font-weight: 600; color: var(--orange); }
.stat__label { margin-top: 12px; font-size: 14px; line-height: 1.5; color: var(--ink-3); }

@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { padding: 0 0 20px; }
  .hero__photo { aspect-ratio: 16 / 10; }
  .hero__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .stat:nth-child(n + 3) { border-top: 1px solid rgba(11, 20, 38, .08); }
  .stat { padding: 22px 16px 26px 0; }
}
@media (max-width: 480px) {
  .hero__photo { aspect-ratio: 1.15; border-radius: 18px; }
  .hero__photo-caption { left: 22px; right: 18px; bottom: 68px; gap: 7px; }
  .hero__photo-caption b { font-size: 21px; }
  .hero__photo-tag { left: 18px; top: 18px; font-size: 11px; }
  .hero__photo-controls { left: 16px; right: 18px; bottom: 12px; }
}

/* ---------- 9. 认证滚动条 ---------- */
.ticker {
  position: relative; display: flex; align-items: center; gap: 28px; overflow: hidden;
  padding-block: 22px; background: var(--navy-900); color: #fff;
}
.ticker__label {
  flex: none; padding-left: max(var(--gutter), calc((100vw - var(--container)) / 2));
  font-size: 13px; line-height: 1.5; color: var(--on-dark-3); letter-spacing: .12em; white-space: nowrap;
}
.ticker__viewport {
  flex: 1; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.ticker__track { display: flex; width: max-content; animation: marquee 60s linear infinite; }
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__list { display: flex; align-items: center; }
.ticker__list li {
  display: flex; align-items: center; gap: 30px; padding-right: 30px;
  font: 500 17px/1 var(--font-num); letter-spacing: .05em; color: rgba(255, 255, 255, .8); white-space: nowrap;
}
.ticker__list li::after {
  content: ""; width: 9px; height: 9px; background: var(--orange);
  -webkit-mask: var(--spark) center / contain no-repeat; mask: var(--spark) center / contain no-repeat;
}
@keyframes marquee { to { transform: translateX(-50%); } }
@media (max-width: 640px) { .ticker__label { display: none; } .ticker { padding-block: 18px; } }

/* ---------- 10. 首页：关于 ---------- */
.intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr); gap: clamp(48px, 7vw, 112px); align-items: center; }
.intro__copy .h-2 { margin-top: 20px; }
.intro__copy .lead { margin-top: 26px; }
.intro__copy p + p { margin-top: 14px; }
.values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 40px; border-top: 1px solid var(--line); }
.value { padding: 24px 18px 0 0; }
.value + .value { padding-left: 20px; border-left: 1px solid var(--line); }
.value b { display: flex; align-items: center; gap: 8px; font-size: 21px; font-weight: 600; line-height: 1.3; }
.value b::before {
  content: ""; width: 9px; height: 9px; background: var(--orange);
  -webkit-mask: var(--spark) center / contain no-repeat; mask: var(--spark) center / contain no-repeat;
}
.value span { display: block; margin-top: 8px; font-size: 13.5px; line-height: 1.7; color: var(--ink-3); }
.intro__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; margin-top: 40px; }

.intro__media { position: relative; padding: 0 0 12% 10%; }
.frame { position: relative; overflow: hidden; border-radius: var(--r-lg); background: var(--mist-2); }
.frame > img { width: 100%; height: 100%; object-fit: cover; }
.intro__main { aspect-ratio: 4 / 3.3; box-shadow: var(--shadow-lg); }
.intro__sub {
  position: absolute; left: 0; bottom: 0; width: 46%; aspect-ratio: 4 / 3;
  border: 6px solid #fff; border-radius: 20px; box-shadow: var(--shadow-lg);
}
.intro__badge {
  position: absolute; right: -3%; bottom: 4%; z-index: 3;
  display: grid; gap: 4px; padding: 20px 24px; border-radius: 18px;
  background: var(--navy-900); color: #fff; box-shadow: var(--shadow-lg);
}
.intro__badge b { font: 600 34px/1 var(--font-num); }
.intro__badge b small { font-size: 15px; margin-left: 3px; color: var(--orange-300); }
.intro__badge span { font-size: 13px; color: var(--on-dark-2); }
@media (max-width: 900px) {
  .intro { grid-template-columns: 1fr; }
  .intro__media { max-width: 640px; }
}
@media (max-width: 560px) {
  .values { grid-template-columns: 1fr; }
  .value + .value { padding-left: 0; border-left: 0; }
  .value { padding: 18px 0; border-bottom: 1px solid var(--line); }
  .intro__badge { right: 0; padding: 14px 16px; }
  .intro__badge b { font-size: 26px; }
}

/* ---------- 11. 首页：业务交互列表 ---------- */
.svc { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(36px, 6vw, 96px); align-items: start; }
.svc__list { border-top: 1px solid var(--line); }
.svc__item { border-bottom: 1px solid var(--line); }
.svc__head {
  display: grid; grid-template-columns: 58px minmax(0, 1fr) auto; align-items: center; gap: 12px;
  width: 100%; padding: 26px 0; text-align: left;
}
.svc__no { font: 600 15px/1 var(--font-num); letter-spacing: .06em; color: var(--ink-4); transition: color .3s; }
.svc__name { display: grid; gap: 6px; }
.svc__title { font-size: clamp(20px, 1.9vw, 26px); font-weight: 600; line-height: 1.3; transition: color .3s; }
.svc__en { font: 500 11.5px/1 var(--font-num); letter-spacing: .18em; text-transform: uppercase; color: var(--ink-4); }
.svc__toggle {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--line); color: var(--ink-2);
  transition: background-color .3s, border-color .3s, color .3s, transform .45s var(--ease);
}
.svc__item:hover .svc__toggle { border-color: var(--ink); color: var(--ink); }
.svc__item.is-active .svc__no { color: var(--orange); }
.svc__item.is-active .svc__toggle { background: var(--orange); border-color: var(--orange); color: #fff; transform: rotate(-45deg); }
.svc__body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .55s var(--ease); }
.svc__item.is-active .svc__body { grid-template-rows: 1fr; }
.svc__body > div { overflow: hidden; min-height: 0; padding-left: 70px; }
.svc__desc { color: var(--ink-2); font-size: 15.5px; }
.svc__more { display: inline-flex; margin: 22px 0 30px; }
.svc__mimg { display: none; margin-top: 18px; border-radius: var(--r); overflow: hidden; aspect-ratio: 16 / 10; }
.svc__mimg img { width: 100%; height: 100%; object-fit: cover; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag {
  display: inline-flex; align-items: center; height: 30px; padding: 0 12px; border-radius: 999px;
  font-size: 13px; color: var(--ink-2); background: var(--mist); border: 1px solid var(--line-2); white-space: nowrap;
}
.tag--blue { background: var(--blue-50); border-color: var(--blue-100); color: var(--blue-700); }
.tag--dark { background: rgba(255, 255, 255, .06); border-color: var(--line-dark); color: var(--on-dark-2); }

.svc__media {
  position: sticky; top: calc(var(--header-h) + 32px);
  aspect-ratio: 4 / 3.7; border-radius: var(--r-xl); overflow: hidden; background: var(--navy-900);
  box-shadow: var(--shadow-lg);
}
.svc__fig { position: absolute; inset: 0; margin: 0; opacity: 0; transform: scale(1.05); transition: opacity .7s var(--ease), transform 1.4s var(--ease); }
.svc__fig.is-active { opacity: 1; transform: none; }
.svc__fig > img { width: 100%; height: 100%; object-fit: cover; }
.svc__fig::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to top, rgba(4, 12, 28, .62), rgba(4, 12, 28, 0) 48%);
}
.svc__cap {
  position: absolute; left: 26px; right: 26px; bottom: 24px; z-index: 2;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; color: #fff;
}
.svc__cap b { display: block; font-size: 18px; font-weight: 600; }
.svc__cap small { display: block; margin-top: 2px; font-size: 13px; color: var(--on-dark-2); }
.svc__cap .num { font-size: 44px; font-weight: 600; line-height: .9; color: rgba(255, 255, 255, .9); }

.cert-stack {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: radial-gradient(120% 90% at 50% 0%, #2A62B8 0%, #0B1F44 62%, #071631 100%);
}
.cert-stack img {
  position: absolute; width: 34%; border-radius: 6px; background: #fff;
  box-shadow: 0 30px 60px -18px rgba(0, 0, 0, .55);
}
.cert-stack img:nth-child(1) { transform: translate(-58%, 6%) rotate(-9deg); }
.cert-stack img:nth-child(2) { transform: translate(58%, 6%) rotate(9deg); }
.cert-stack img:nth-child(3) { z-index: 2; width: 38%; transform: translateY(-3%); }
.svc__fig .dash { position: absolute; inset: 0; display: grid; place-items: center; padding: 8%; background: radial-gradient(120% 90% at 30% 0%, #16366E 0%, #071631 62%); }
.svc__fig .dash svg { width: 100%; height: auto; filter: drop-shadow(0 30px 50px rgba(0, 0, 0, .45)); }

@media (max-width: 900px) {
  .svc { grid-template-columns: 1fr; }
  .svc__media { display: none; }
  .svc__mimg { display: block; }
  .svc__body > div { padding-left: 0; }
  .svc__head { grid-template-columns: 44px minmax(0, 1fr) auto; }
}

/* ---------- 12. 深色区块：为什么选择赢筹 ---------- */
.dark-block { position: relative; overflow: hidden; background: var(--navy-900); color: #fff; isolation: isolate; }
.dark-block .lead { color: var(--on-dark-2); }
.dark-block__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.dark-block__bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 520px at 85% -10%, rgba(38, 127, 255, .28), transparent 70%),
    radial-gradient(600px 420px at 0% 110%, rgba(255, 127, 0, .10), transparent 70%);
}
.dark-block__bg .bp-grid {
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 80%);
  mask-image: linear-gradient(to bottom, #000, transparent 80%);
}
.dark-block__bg .orbit { right: -18%; top: -30%; width: 80%; opacity: .9; }
.dark-block__bg .orbit .orbit__line { stroke: rgba(127, 178, 255, .16); }

.why-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.why-card {
  position: relative; overflow: hidden; display: flex; flex-direction: column;
  padding: 30px 28px 32px; border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, .065), rgba(255, 255, 255, .02));
  border: 1px solid var(--line-dark);
  transition: border-color .35s, transform .5s var(--ease), background-color .35s;
}
.why-card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .4s;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 0%), rgba(38, 127, 255, .2), transparent 62%);
}
.why-card__icon {
  display: grid; place-items: center; width: 50px; height: 50px; border-radius: 14px;
  background: rgba(38, 127, 255, .16); color: var(--blue-300);
}
.why-card__no { position: absolute; right: 20px; top: 14px; font: 600 64px/1 var(--font-num); color: rgba(255, 255, 255, .05); }
.why-card h3 { margin-top: 30px; font-size: 20px; font-weight: 600; line-height: 1.4; }
.why-card p { margin: 12px 0 26px; font-size: 14.5px; line-height: 1.85; color: var(--on-dark-2); }
.why-card .why-card__fact {
  margin: auto 0 0; padding-top: 22px; display: flex; align-items: baseline; gap: 10px;
  border-top: 1px solid var(--line-dark); font-size: 13px; line-height: 1.6; color: var(--on-dark-3);
}
.why-card__fact b { flex: none; white-space: nowrap; font: 600 26px/1 var(--font-num); color: #fff; }
.why-card__fact b small { font-size: 14px; color: var(--orange-300); margin-left: 2px; }
@media (max-width: 1080px) { .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .why-grid { grid-template-columns: 1fr; } }

.honors-strip {
  display: grid; grid-template-columns: minmax(0, 240px) minmax(0, 1fr); gap: clamp(28px, 4vw, 56px); align-items: center;
  margin-top: clamp(56px, 7vw, 96px); padding-top: clamp(40px, 5vw, 56px); border-top: 1px solid var(--line-dark);
}
.honors-strip h3 { font-size: 22px; font-weight: 600; margin-top: 14px; }
.honors-strip p:not(.eyebrow) { margin-top: 10px; font-size: 14px; color: var(--on-dark-3); }
.honors-strip__list { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.honor { display: grid; gap: 12px; text-align: center; }
.honor__img {
  position: relative; aspect-ratio: 4 / 3.2; border-radius: 12px;
  background: linear-gradient(180deg, #fff, #F2F4F8); box-shadow: 0 20px 40px -24px rgba(0, 0, 0, .8);
  transition: transform .5s var(--ease);
}
.honor__img img { position: absolute; inset: 10px; width: calc(100% - 20px); height: calc(100% - 20px); object-fit: contain; }
.honor figcaption { font-size: 12.5px; line-height: 1.55; color: var(--on-dark-2); }
@media (max-width: 1080px) {
  .honors-strip { grid-template-columns: 1fr; }
  .honors-strip__list { grid-template-columns: repeat(5, minmax(120px, 1fr)); overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; }
  .honor { scroll-snap-align: start; }
}

/* ---------- 13. 案例 ---------- */
.bento { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 16px; }
.bento > * { min-width: 0; }
.bento__ba { grid-column: span 7; grid-row: span 2; display: flex; flex-direction: column; gap: 16px; }
.bento__side { grid-column: span 5; }
.bento__third { grid-column: span 4; min-height: 300px; }
.bento__side { min-height: 250px; }
.bento__ba .ba-card { height: 100%; grid-template-rows: minmax(0, 1fr) auto; }
.bento__ba .ba { aspect-ratio: auto; min-height: 320px; }
@media (max-width: 980px) {
  .bento__ba, .bento__side, .bento__third { grid-column: 1 / -1; grid-row: auto; }
  .bento__ba .ba { aspect-ratio: 657 / 367; min-height: 0; }
}

.case {
  position: relative; display: block; overflow: hidden; isolation: isolate;
  min-height: 280px; height: 100%; border-radius: var(--r-lg); background: var(--navy-800); color: #fff;
}
.case > img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.case::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(to top, rgba(4, 12, 28, .86) 0%, rgba(4, 12, 28, .25) 52%, rgba(4, 12, 28, 0) 75%);
}
.case:hover > img { transform: scale(1.06); }
.case .corners { opacity: 0; inset: 26px; transition: opacity .35s, inset .6s var(--ease); }
.case:hover .corners { opacity: 1; inset: 16px; }
.case__body { position: absolute; left: 26px; right: 26px; bottom: 24px; display: grid; justify-items: start; }
.case__title, .case__desc { display: block; }
.case__cat {
  display: inline-flex; align-items: center; height: 26px; padding: 0 11px; border-radius: 999px;
  font-size: 12px; background: rgba(255, 255, 255, .16); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.case__title { margin-top: 12px; font-size: 19px; font-weight: 600; line-height: 1.45; }
.case__desc { margin-top: 6px; font-size: 13.5px; line-height: 1.7; color: var(--on-dark-2); }
.case__go {
  position: absolute; right: 22px; top: 22px; display: grid; place-items: center; width: 42px; height: 42px;
  border-radius: 50%; background: rgba(255, 255, 255, .16); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  opacity: 0; transform: translateY(6px); transition: opacity .35s, transform .45s var(--ease);
}
.case:hover .case__go { opacity: 1; transform: none; }

/* 改善前后对比滑块 */
.ba {
  --pos: 50%;
  position: relative; overflow: hidden; border-radius: var(--r-lg); aspect-ratio: 657 / 367;
  background: var(--navy-900); user-select: none; -webkit-user-select: none; touch-action: pan-y;
}
.ba--tall { aspect-ratio: 657 / 421; }
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.ba__before { position: absolute; inset: 0; z-index: 1; clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.ba__line { position: absolute; top: 0; bottom: 0; left: var(--pos); z-index: 2; width: 2px; margin-left: -1px; background: #fff; box-shadow: 0 0 12px rgba(0, 0, 0, .25); pointer-events: none; }
.ba__knob {
  position: absolute; top: 50%; left: var(--pos); z-index: 2; display: grid; grid-auto-flow: column; place-items: center;
  width: 56px; height: 56px; margin: -28px 0 0 -28px; border-radius: 50%; pointer-events: none;
  background: #fff; color: var(--ink); box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
  transition: transform .3s var(--ease);
}
.ba__knob .i { width: 16px; height: 16px; stroke-width: 2.2; }
.ba:hover .ba__knob { transform: scale(1.06); }
.ba__range { position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.ba:has(.ba__range:focus-visible) .ba__knob { outline: 2px solid var(--blue); outline-offset: 4px; }
.ba__tag {
  position: absolute; top: 18px; z-index: 2; display: inline-flex; align-items: center; height: 30px; padding: 0 13px;
  border-radius: 999px; font-size: 13px; font-weight: 600; color: #fff; pointer-events: none;
  background: rgba(4, 12, 28, .62); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.ba__tag--before { left: 18px; }
.ba__tag--after { right: 18px; background: var(--orange); }
.ba-card { display: grid; gap: 18px; padding: 16px; border-radius: calc(var(--r-lg) + 8px); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.ba-card .ba { border-radius: var(--r); }
.ba-card__meta { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; padding: 0 8px 6px; }
.ba-card__meta h3 { font-size: 19px; font-weight: 600; line-height: 1.45; }
.ba-card__meta p { margin-top: 4px; font-size: 14px; color: var(--ink-3); }
.ba-card__hint { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-3); white-space: nowrap; }
.ba-card__hint .i { width: 16px; height: 16px; color: var(--orange); }

/* ---------- 14. 流程步骤 ---------- */
.steps { --cols: 6; display: grid; grid-template-columns: repeat(var(--cols), minmax(0, 1fr)); gap: 0; counter-reset: step; }
.step { position: relative; padding-right: 22px; }
.step::before {
  content: ""; position: absolute; top: 28px; left: 64px; right: 10px; height: 1px;
  background: repeating-linear-gradient(90deg, var(--ink-4) 0 5px, transparent 5px 10px);
  transform-origin: left; transform: scaleX(0); transition: transform 1s var(--ease);
  transition-delay: calc(var(--i, 0) * .12s + .2s);
}
.steps.is-in .step::before, .no-js .step::before { transform: scaleX(1); }
.step:last-child::before { display: none; }
.step__dot {
  position: relative; z-index: 1; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  font: 600 17px/1 var(--font-num); color: var(--ink);
  transition: background-color .3s, color .3s, border-color .3s, transform .4s var(--ease);
}
.step h3 { margin-top: 26px; font-size: 18px; font-weight: 600; line-height: 1.4; }
.step p { margin-top: 8px; font-size: 14px; line-height: 1.75; color: var(--ink-3); }
.step ul { margin-top: 10px; padding: 0; list-style: none; display: grid; gap: 4px; }
.step li { position: relative; padding-left: 14px; font-size: 13.5px; line-height: 1.7; color: var(--ink-3); }
.step li::before { content: ""; position: absolute; left: 0; top: .72em; width: 5px; height: 5px; border-radius: 50%; background: var(--blue); }
.section--dark .step__dot, .dark-block .step__dot { background: var(--navy-850); border-color: var(--line-dark); color: #fff; box-shadow: none; }
.section--dark .step p, .dark-block .step p, .section--dark .step li, .dark-block .step li { color: var(--on-dark-2); }
.section--dark .step::before, .dark-block .step::before { background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .3) 0 5px, transparent 5px 10px); }
@media (max-width: 1080px) {
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 44px; }
  .step:nth-child(3n)::before { display: none; }
}
@media (max-width: 600px) {
  .steps { grid-template-columns: 1fr; row-gap: 0; }
  .step { display: grid; grid-template-columns: 56px minmax(0, 1fr); column-gap: 18px; padding: 0 0 30px; }
  .step::before, .step:nth-child(3n)::before {
    display: block; top: 64px; bottom: 6px; left: 28px; right: auto; width: 1px; height: auto;
    background: repeating-linear-gradient(180deg, var(--ink-4) 0 5px, transparent 5px 10px);
    transform-origin: top; transform: scaleY(0);
  }
  .steps.is-in .step::before { transform: scaleY(1); }
  .step:last-child::before { display: none; }
  .step__dot { grid-row: span 3; }
  .step h3 { margin-top: 14px; }
}

/* ---------- 17. 页脚 ---------- */
.site-footer { position: relative; overflow: hidden; isolation: isolate; background: var(--navy-950); color: var(--on-dark-2); font-size: 14.5px; padding-top: clamp(64px, 8vw, 104px); }
.site-footer__orbit { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.site-footer__orbit svg { width: 100%; height: 100%; }
.site-footer__orbit ellipse { fill: none; stroke: rgba(127, 178, 255, .07); stroke-width: 1; }
.footer__top { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, .8fr)) minmax(0, 1.4fr); gap: clamp(32px, 4vw, 56px); padding-bottom: 56px; border-bottom: 1px solid var(--line-dark); }
.footer__slogan { margin-top: 24px; max-width: 24em; line-height: 1.9; }
.footer__qrs { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 16px; margin-top: 28px; }
.qr.qr--wechat img { width: 116px; height: 116px; padding: 4px; }
.footer__title a { padding: 0; color: inherit; }
.qr { display: grid; gap: 8px; justify-items: center; }
.qr img { width: 96px; height: 96px; padding: 7px; border-radius: 12px; background: #fff; object-fit: contain; }
.qr figcaption { font-size: 12px; color: var(--on-dark-3); }
.footer__title { margin-bottom: 18px; font-size: 14px; font-weight: 600; letter-spacing: .08em; color: #fff; }
.footer__col a { display: inline-block; padding: 5px 0; transition: color .2s; }
.footer__col a:hover { color: #fff; }
.footer__contact li { display: flex; gap: 12px; padding: 6px 0; }
.footer__contact .i { margin-top: 5px; color: var(--orange-300); }
.footer__contact span { display: grid; font-size: 12.5px; color: var(--on-dark-3); line-height: 1.6; }
.footer__contact span a, .footer__contact em { padding: 0; font-style: normal; font-size: 15px; color: #fff; }
.footer__contact span a.num { font-size: 16px; letter-spacing: .03em; }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-block: 24px calc(32px + env(safe-area-inset-bottom)); font-size: 13px; color: var(--on-dark-3); }
.footer__bottom a:hover { color: #fff; }
.footer__dot { margin: 0 10px; }
@media (max-width: 1080px) {
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__brand, .footer__contact { grid-column: 1 / -1; }
}
@media (max-width: 760px) { .site-footer { padding-bottom: 64px; } }

/* ---------- 18. 右侧快捷栏 / 移动端底栏 ---------- */
.dock {
  position: fixed; right: 18px; bottom: 28px; z-index: 55;
  display: grid; gap: 4px; padding: 6px; border-radius: 999px;
  background: rgba(255, 255, 255, .88); border: 1px solid rgba(11, 20, 38, .06);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); box-shadow: var(--shadow);
}
.dock__btn {
  position: relative; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%;
  color: var(--ink-2); transition: background-color .2s, color .2s;
}
.dock__btn:hover, .dock__btn:focus-visible { background: var(--orange); color: #fff; }
.dock__tip {
  position: absolute; right: calc(100% + 16px); top: 50%; display: grid; gap: 2px; padding: 12px 16px;
  border-radius: 14px; background: #fff; color: var(--ink); box-shadow: var(--shadow-lg); white-space: nowrap; text-align: left;
  opacity: 0; visibility: hidden; transform: translate(8px, -50%); pointer-events: none;
  transition: opacity .25s, transform .35s var(--ease), visibility 0s linear .35s;
}
.dock__tip small { font-size: 12px; color: var(--ink-3); }
.dock__tip b { font-size: 16px; font-weight: 600; }
.dock__tip--qr { justify-items: center; gap: 8px; padding: 14px; }
.dock__tip--qr img { width: 160px; height: auto; }
.dock__tip--qr b { margin-top: 2px; }
.dock__btn:hover .dock__tip, .dock__btn:focus-visible .dock__tip { opacity: 1; visibility: visible; transform: translate(0, -50%); transition-delay: 0s; }
.dock__top { display: none; }
.dock.show-top .dock__top { display: grid; }

.mbar { display: none; }
@media (max-width: 760px) {
  .dock { display: none; }
  .mbar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 55; display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px;
    padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, .94); border-top: 1px solid var(--line);
    -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  }
  .mbar__btn { display: flex; align-items: center; justify-content: center; gap: 8px; height: 46px; border-radius: 999px; font-size: 15px; font-weight: 600; border: 1px solid var(--line); }
  .mbar__btn--primary { background: var(--orange); border-color: var(--orange); color: #fff; }
}

/* ---------- 19. 子页面页头 ---------- */
.page-hero {
  position: relative; overflow: hidden; isolation: isolate; background: var(--navy-900); color: #fff;
  padding-top: calc(var(--header-h) + clamp(40px, 6vw, 88px)); padding-bottom: clamp(64px, 8vw, 112px);
}
.page-hero__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.page-hero__bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(1000px 560px at 88% -10%, rgba(38, 127, 255, .36), transparent 68%),
    radial-gradient(700px 420px at -10% 120%, rgba(255, 127, 0, .12), transparent 70%);
}
.page-hero__bg .bp-grid {
  -webkit-mask-image: radial-gradient(1000px 520px at 30% 30%, #000, transparent 75%);
  mask-image: radial-gradient(1000px 520px at 30% 30%, #000, transparent 75%);
}
.page-hero__bg .orbit { right: -12%; top: -34%; width: 70%; }
.page-hero__bg .orbit .orbit__line { stroke: rgba(127, 178, 255, .2); }
.page-hero__inner { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); gap: clamp(36px, 5vw, 80px); align-items: center; }
.page-hero__inner--solo { grid-template-columns: minmax(0, 1fr); max-width: 860px; }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--on-dark-3); }
.crumbs a:hover { color: #fff; }
.crumbs .i { width: 12px; height: 12px; stroke-width: 2; }
.page-hero .eyebrow { margin-top: 30px; }
.page-hero .h-1 { margin-top: 18px; }
.page-hero .lead { margin-top: 22px; max-width: 34em; color: var(--on-dark-2); }
.page-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.page-hero__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.page-hero__media {
  position: relative; aspect-ratio: 5 / 4; border-radius: var(--r-xl);
  background: var(--navy-800); box-shadow: 0 50px 90px -40px rgba(0, 0, 0, .7);
}
.page-hero__media > img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; }
.page-hero__media > .cert-stack, .page-hero__media > .dash { border-radius: inherit; overflow: hidden; }
.page-hero__media--model { background: #E9ECEF; }
.page-hero__float {
  position: absolute; left: -28px; bottom: 28px; z-index: 3; display: flex; align-items: center; gap: 14px;
  padding: 16px 20px; border-radius: 16px; background: #fff; color: var(--ink); box-shadow: var(--shadow-lg);
}
.page-hero__float b { display: block; font: 600 28px/1 var(--font-num); }
.page-hero__float > span > small { display: block; margin-top: 4px; font-size: 12.5px; color: var(--ink-3); }
.page-hero__float b small { margin-left: 3px; font-family: var(--font-sans); font-size: 14px; font-weight: 600; color: var(--orange); }
.page-hero__float .why-card__icon { background: var(--orange-50); color: var(--orange); width: 44px; height: 44px; }
@media (max-width: 900px) {
  .page-hero__inner { grid-template-columns: 1fr; }
  .page-hero__float { left: 16px; }
}

/* 页内锚点导航（服务页） */
.subnav {
  position: sticky; top: var(--header-h); z-index: 40;
  background: rgba(255, 255, 255, .9); border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.subnav__inner { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.subnav__inner::-webkit-scrollbar { display: none; }
.subnav a {
  position: relative; flex: none; padding: 16px 16px; font-size: 14.5px; font-weight: 500; color: var(--ink-3);
  transition: color .2s;
}
.subnav a:hover { color: var(--ink); }
.subnav a.is-active { color: var(--ink); }
.subnav a.is-active::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: -1px; height: 2px; background: var(--orange); border-radius: 2px; }

/* ---------- 20. 通用内容组件 ---------- */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 96px); align-items: center; }
.split--wide-media { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
.split__media { position: relative; }
.split__media .frame { aspect-ratio: 4 / 3; box-shadow: var(--shadow-lg); }
.split__copy .h-2 { margin-top: 18px; }
.split__copy .lead { margin-top: 22px; }
.split__copy .prose { margin-top: 18px; color: var(--ink-2); }
@media (max-width: 900px) {
  .split, .split--wide-media { grid-template-columns: 1fr; }
  .split--reverse-sm .split__media { order: -1; }
}

.checklist { display: grid; gap: 12px; margin-top: 26px; padding: 0; list-style: none; }
.checklist li { display: flex; gap: 12px; line-height: 1.7; color: var(--ink-2); }
.checklist li::before {
  content: ""; flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%;
  background: var(--blue-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23267FFF' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12.5 4 4L18 8'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.checklist--2 { grid-template-columns: 1fr 1fr; column-gap: 28px; }
@media (max-width: 560px) { .checklist--2 { grid-template-columns: 1fr; } }

.feature-grid { display: grid; grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr)); gap: 16px; }
.feature {
  position: relative; display: flex; flex-direction: column; padding: 30px 28px 32px; border-radius: var(--r-lg);
  background: #fff; border: 1px solid var(--line); transition: border-color .3s, box-shadow .4s, transform .5s var(--ease);
}
.feature__icon {
  display: grid; place-items: center; width: 50px; height: 50px; border-radius: 14px;
  background: var(--blue-50); color: var(--blue); transition: background-color .3s, color .3s;
}
.feature__no { position: absolute; right: 24px; top: 24px; font: 600 14px/1 var(--font-num); letter-spacing: .08em; color: var(--ink-4); }
.feature h3 { margin-top: 26px; font-size: 19px; font-weight: 600; line-height: 1.45; }
.feature p { margin-top: 10px; font-size: 14.5px; line-height: 1.85; color: var(--ink-3); }
.feature .tags { margin-top: auto; padding-top: 18px; }
.section--mist .feature { border-color: transparent; }
@media (max-width: 1080px) { .feature-grid { --cols: 2 !important; } }
@media (max-width: 600px) { .feature-grid { --cols: 1 !important; } }

/* 认证范围分组 */
.spec-groups { display: grid; gap: 16px; }
.spec-group {
  display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px);
  padding: clamp(26px, 3vw, 40px); border-radius: var(--r-lg); background: #fff; border: 1px solid var(--line);
}
.spec-group__head .feature__icon { margin-bottom: 20px; }
.spec-group__head h3 { font-size: 21px; font-weight: 600; }
.spec-group__head p { margin-top: 8px; font-size: 14px; line-height: 1.8; color: var(--ink-3); }
.spec-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px; align-content: start; }
.spec {
  display: grid; gap: 2px; padding: 14px 16px; border-radius: 12px; background: var(--mist);
  border: 1px solid transparent; transition: border-color .2s, background-color .2s;
}
.spec b { font: 600 16px/1.3 var(--font-num); letter-spacing: .02em; color: var(--ink); }
.spec span { font-size: 13px; line-height: 1.55; color: var(--ink-3); }
@media (max-width: 900px) { .spec-group { grid-template-columns: 1fr; } }

/* 精益套餐 */
.pkgs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.pkg {
  --pkg-accent: var(--navy-800); --pkg-tint: #EDF1F7;
  position: relative; display: flex; flex-direction: column; overflow: hidden; padding: 30px 26px 28px; border-radius: var(--r-lg);
  background: #fff; border: 1px solid var(--line); transition: border-color .3s;
}
.pkg:nth-child(2) { --pkg-accent: var(--blue-700); --pkg-tint: var(--blue-50); }
.pkg:nth-child(3) { --pkg-accent: #087B68; --pkg-tint: #EAF7F2; }
.pkg:nth-child(4) { --pkg-accent: #D36100; --pkg-tint: var(--orange-50); }
.pkg__head { display: flex; align-items: center; justify-content: space-between; }
.pkg__icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 16px; background: var(--pkg-tint); color: var(--pkg-accent); }
.pkg__icon .i { width: 28px; height: 28px; stroke-width: 1.6; }
.pkg__letter { font: 500 13px/1 var(--font-num); color: var(--ink-4); border: 1px solid var(--line); padding: 7px 9px; border-radius: 8px; }
.pkg h3 { margin-top: 22px; font-size: 20px; font-weight: 600; }
.pkg__en { margin-top: 4px; font: 500 11.5px/1.3 var(--font-num); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-4); }
.pkg ul { display: grid; align-content: start; gap: 10px; margin: 22px 0 28px; padding: 20px 0 0; list-style: none; border-top: 1px solid var(--line-2); }
.pkg li { display: flex; gap: 10px; font-size: 14.5px; color: var(--ink-2); }
.pkg li::before { content: ""; flex: none; width: 5px; height: 5px; margin-top: .72em; border-radius: 50%; background: var(--pkg-accent); opacity: .75; }
.pkg__time { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin: auto -26px -28px; padding: 20px 26px; border-top: 1px solid var(--line-2); background: #F8FAFC; }
.pkg__time span { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-3); white-space: nowrap; }
.pkg__time .i { width: 15px; height: 15px; }
.pkg__time b { font: 600 22px/1 var(--font-num); }
.pkg__time b small { font-family: var(--font-sans); font-size: 13px; font-weight: 500; margin-left: 3px; color: var(--ink-3); }
@media (max-width: 1080px) { .pkgs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .pkgs { grid-template-columns: 1fr; } }

/* 目视化模块表 */
.modules { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(24px, 4vw, 56px); border-top: 1px solid var(--line); }
.module { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 16px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.module__no { font: 600 15px/1.6 var(--font-num); color: var(--orange); letter-spacing: .06em; }
.module h3 { font-size: 17.5px; font-weight: 600; line-height: 1.5; }
.module p { margin-top: 6px; font-size: 14px; line-height: 1.8; color: var(--ink-3); }
.module__out { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px; font-size: 13px; color: var(--blue-700); }
.module__out .i { width: 15px; height: 15px; }
@media (max-width: 800px) { .modules { grid-template-columns: 1fr; } }

/* 图集 + 筛选 */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.filter {
  height: 40px; padding: 0 18px; border-radius: 999px; font-size: 14.5px; font-weight: 500; color: var(--ink-2);
  background: #fff; border: 1px solid var(--line); transition: all .25s;
}
.filter:hover { border-color: var(--ink); color: var(--ink); }
.filter.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.filter sup { margin-left: 4px; font: 500 11px/1 var(--font-num); opacity: .6; top: -.5em; }

.gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.gallery--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.shot {
  position: relative; display: block; overflow: hidden; width: 100%; aspect-ratio: 4 / 3; border-radius: var(--r);
  background: var(--mist-2); cursor: zoom-in; isolation: isolate; text-align: left;
}
.shot--wide { grid-column: span 2; aspect-ratio: auto; }
.shot > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.shot--portrait > img { object-fit: contain; }
.shot--portrait { background: #152138; }
.shot:hover > img { transform: scale(1.05); }
.shot::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to top, rgba(4, 12, 28, .7), rgba(4, 12, 28, 0) 50%); opacity: .9;
}
.shot figcaption, .shot__cap {
  position: absolute; left: 18px; right: 18px; bottom: 14px; z-index: 2; color: #fff; font-size: 14px; font-weight: 500; line-height: 1.5;
}
.shot__cap small { display: block; font-size: 12px; font-weight: 400; color: var(--on-dark-2); }
.shot .corners { opacity: 0; inset: 22px; transition: opacity .3s, inset .5s var(--ease); --l: 18px; }
.shot:hover .corners { opacity: 1; inset: 12px; }
.shot__zoom {
  position: absolute; right: 12px; top: 12px; z-index: 2; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255, 255, 255, .9); color: var(--ink); opacity: 0; transform: scale(.85); transition: opacity .3s, transform .4s var(--ease);
}
.shot:hover .shot__zoom { opacity: 1; transform: none; }
.shot.is-hidden { display: none; }
.shot--contain { background: #fff; border: 1px solid var(--line); }
.shot--contain > img { object-fit: contain; padding: 12px; }
.shot--contain::after { display: none; }
@media (max-width: 900px) { .gallery, .gallery--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .gallery, .gallery--4 { grid-template-columns: 1fr; } .shot--wide { grid-column: auto; aspect-ratio: 4 / 3; } }

/* 案例卡片网格（案例页） */
.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-auto-flow: dense; gap: 16px; }
.case .cert-stack img { width: 30%; }
.case .cert-stack img:nth-child(3) { width: 34%; transform: translateY(-10%); }
.case .cert-stack img:nth-child(1) { transform: translate(-58%, -4%) rotate(-9deg); }
.case .cert-stack img:nth-child(2) { transform: translate(58%, -4%) rotate(9deg); }
.media-note { position: absolute; right: 18px; bottom: 14px; z-index: 2; font-size: 12px; color: rgba(255, 255, 255, .45); }
.case-grid .case { min-height: 360px; }
.case-grid .case--wide { grid-column: span 2; }
.case-grid .case.is-hidden { display: none; }
@media (max-width: 980px) { .case-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .case-grid { grid-template-columns: 1fr; } .case-grid .case--wide { grid-column: auto; } }

.ba-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 800px) { .ba-grid { grid-template-columns: 1fr; } }

/* 数字条 */
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric { padding: 34px 24px 34px 0; }
.metric + .metric { padding-left: 28px; border-left: 1px solid var(--line); }
.metric b { display: flex; align-items: baseline; gap: 4px; font: 600 clamp(36px, 3.6vw, 52px)/1 var(--font-num); }
.metric b small { font-size: .38em; color: var(--orange); }
.metric span { display: block; margin-top: 12px; font-size: 14px; color: var(--ink-3); }
.dark-block .metrics, .section--dark .metrics { border-color: var(--line-dark); }
.dark-block .metric + .metric, .section--dark .metric + .metric { border-color: var(--line-dark); }
.dark-block .metric span, .section--dark .metric span { color: var(--on-dark-3); }
@media (max-width: 760px) {
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric:nth-child(3) { padding-left: 0; border-left: 0; }
  .metric:nth-child(n + 3) { border-top: 1px solid var(--line); }
}

/* 引言 */
.quote-block { position: relative; padding: clamp(32px, 4vw, 48px); border-radius: var(--r-lg); background: var(--mist); }
.quote-block .i { width: 34px; height: 34px; color: var(--orange); }
.quote-block p { margin-top: 18px; font-size: clamp(18px, 1.6vw, 22px); line-height: 1.75; font-weight: 500; }
.quote-block footer { margin-top: 18px; font-size: 14px; color: var(--ink-3); }

/* 创始人 */
.founder { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(40px, 6vw, 96px); align-items: center; }
.founder__photo { position: relative; aspect-ratio: 4 / 5; border-radius: var(--r-xl); overflow: hidden; background: linear-gradient(180deg, #5F6772, #3A414B); box-shadow: var(--shadow-lg); }
.founder__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 12%; }
.founder__name { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 16px; margin-top: 18px; }
.founder__name h2 { font-size: clamp(30px, 3vw, 42px); font-weight: 600; letter-spacing: .08em; }
.founder__name span { font-size: 15px; color: var(--ink-3); }
.founder__bio { margin-top: 22px; color: var(--ink-2); }
.founder__brands { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.founder__skills { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.founder__skills div { padding: 20px 22px; border-radius: var(--r); background: var(--mist); }
.founder__skills h3 { font-size: 15px; font-weight: 600; }
.founder__skills p { margin-top: 8px; font-size: 14px; line-height: 1.8; color: var(--ink-3); }
@media (max-width: 900px) { .founder { grid-template-columns: 1fr; } .founder__photo { max-width: 420px; } }
@media (max-width: 560px) { .founder__skills { grid-template-columns: 1fr; } }

/* 服务模式演进 */
.modes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.mode { position: relative; padding: 28px 24px; border-radius: var(--r-lg); background: rgba(255, 255, 255, .04); border: 1px solid var(--line-dark); }
.mode .mode__gen { margin: 0; font: 600 12px/1 var(--font-num); letter-spacing: .16em; color: var(--on-dark-3); text-transform: uppercase; }
.mode h3 { margin-top: 16px; font-size: 22px; font-weight: 600; }
.mode p { margin-top: 12px; font-size: 14px; line-height: 1.85; color: var(--on-dark-2); }
.mode .mode__traits { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line-dark); font-size: 13px; color: var(--on-dark-3); }
.mode--ours { background: linear-gradient(160deg, rgba(38, 127, 255, .32), rgba(38, 127, 255, .08)); border-color: rgba(127, 178, 255, .4); }
.mode--ours .mode__traits { color: #fff; }
.mode__badge {
  position: absolute; right: 18px; top: 18px; display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600; background: var(--orange); color: #fff;
}
@media (max-width: 1080px) { .modes { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .modes { grid-template-columns: 1fr; } }

/* 荣誉墙 */
.honor-wall { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.honor-wall .shot { aspect-ratio: 4 / 3.3; }
@media (max-width: 900px) { .honor-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* 职位 */
.jobs { display: grid; gap: 12px; }
.job { border-radius: var(--r-lg); background: #fff; border: 1px solid var(--line); overflow: hidden; transition: box-shadow .3s, border-color .3s; }
.job[open] { box-shadow: var(--shadow); border-color: transparent; }
.job summary {
  display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 20px;
  padding: 26px 30px; cursor: pointer; list-style: none;
}
.job summary::-webkit-details-marker { display: none; }
.job summary h3 { font-size: 20px; font-weight: 600; }
.job summary p { margin-top: 4px; font-size: 14px; color: var(--ink-3); }
.job__pay { font: 600 18px/1 var(--font-num); color: var(--orange); white-space: nowrap; }
.job__pay small { font-family: var(--font-sans); font-size: 13px; font-weight: 500; color: var(--ink-3); margin-left: 4px; }
.job__toggle { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); transition: transform .4s var(--ease), background-color .3s, color .3s, border-color .3s; }
.job[open] .job__toggle { transform: rotate(45deg); background: var(--ink); border-color: var(--ink); color: #fff; }
.job__body { padding: 0 30px 30px; }
.job__body ol { display: grid; gap: 8px; margin: 0; padding: 22px 0 0 20px; border-top: 1px solid var(--line-2); color: var(--ink-2); font-size: 15px; }
@media (max-width: 600px) {
  .job summary { grid-template-columns: minmax(0, 1fr) auto; padding: 22px; }
  .job__pay { grid-column: 1; grid-row: 2; }
  .job__toggle { grid-row: 1 / span 2; grid-column: 2; }
  .job__body { padding: 0 22px 24px; }
}

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.contact-cards { display: grid; gap: 12px; }
.contact-card {
  display: grid; grid-template-columns: 50px minmax(0, 1fr); gap: 18px; align-items: center;
  padding: 22px 24px; border-radius: var(--r-lg); background: #fff; border: 1px solid var(--line); transition: border-color .25s, box-shadow .3s;
}
a.contact-card:hover { border-color: transparent; box-shadow: var(--shadow); }
.contact-card .feature__icon { width: 50px; height: 50px; }
.contact-card small { display: block; font-size: 13px; color: var(--ink-3); }
.contact-card b { display: block; margin-top: 2px; font-size: 18px; font-weight: 600; line-height: 1.5; word-break: break-all; }
.contact-card b.num { font-size: 21px; letter-spacing: .02em; }
.contact-card--hot { background: var(--navy-900); border-color: var(--navy-900); color: #fff; }
.contact-card--hot small { color: var(--on-dark-3); }
.contact-card--hot .feature__icon { background: var(--orange); color: #fff; }
.contact-card--hot b.num { font-size: 28px; }
.contact-card em { display: block; margin-top: 4px; font-style: normal; font-size: 13px; color: var(--ink-3); }
.contact-card--qr { grid-template-columns: 50px minmax(0, 1fr) auto; }
.contact-card--qr img { width: 132px; height: 132px; border-radius: 10px; }
@media (max-width: 480px) {
  .contact-card--qr { grid-template-columns: 50px minmax(0, 1fr); }
  .contact-card--qr img { grid-column: 1 / -1; justify-self: center; width: 180px; height: 180px; }
}
.map-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }

.visit-card {
  position: relative; overflow: hidden; isolation: isolate; display: flex; flex-direction: column;
  padding: clamp(28px, 4vw, 48px); border-radius: var(--r-xl); background: var(--navy-900); color: #fff; box-shadow: var(--shadow-lg);
}
.visit-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(600px 360px at 100% 0%, rgba(38, 127, 255, .35), transparent 70%);
}
.visit-card .orbit { right: -30%; top: -40%; width: 90%; z-index: -1; }
.visit-card .orbit .orbit__line { stroke: rgba(127, 178, 255, .2); }
.visit-card .h-3 { margin-top: 16px; }
.visit-card__addr { margin-top: 14px; font-size: clamp(18px, 1.7vw, 22px); line-height: 1.7; font-weight: 500; }
.visit-card .map-actions { margin-top: 22px; }
.visit-card__qrs { display: flex; flex-wrap: wrap; gap: 16px; margin-top: auto; padding-top: 36px; }
.visit-card__qrs .qr img { width: 112px; height: 112px; }
.visit-card__qrs .qr figcaption { color: var(--on-dark-2); }
.visit-card__note { margin-top: 18px; font-size: 13.5px; color: var(--on-dark-3); }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* 系统卡片（智能工厂） */
.sys-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.sys {
  position: relative; display: flex; flex-direction: column; padding: 30px 28px; border-radius: var(--r-lg);
  background: rgba(255, 255, 255, .045); border: 1px solid var(--line-dark); transition: border-color .3s, transform .5s var(--ease);
}
.sys__code { font: 600 30px/1 var(--font-num); letter-spacing: .02em; color: #fff; }
.sys__code small { display: block; margin-top: 10px; font-family: var(--font-sans); font-size: 16px; font-weight: 600; letter-spacing: 0; color: var(--on-dark-2); }
.sys p { margin-top: 16px; font-size: 14.5px; line-height: 1.85; color: var(--on-dark-2); }
.sys ul { display: grid; gap: 6px; margin: 18px 0 0; padding: 16px 0 0; list-style: none; border-top: 1px solid var(--line-dark); }
.sys li { display: flex; gap: 10px; font-size: 13.5px; color: var(--on-dark-2); }
.sys li::before { content: ""; flex: none; width: 5px; height: 5px; margin-top: .75em; border-radius: 50%; background: var(--blue-300); }
@media (max-width: 1000px) { .sys-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .sys-grid { grid-template-columns: 1fr; } }

/* 课程 */
.course-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.course-group { display: flex; flex-direction: column; padding: 32px; border-radius: var(--r-lg); background: #fff; border: 1px solid var(--line); }
.course-group__head { display: flex; align-items: center; gap: 16px; }
.course-group__head h3 { font-size: 20px; font-weight: 600; }
.course-group__head p { font-size: 13px; color: var(--ink-3); }
.course-list { display: grid; margin: 22px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-2); }
.course-list li { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px dashed var(--line); font-size: 15px; }
.course-list li:last-child { border-bottom: 0; }
.course-list li span { font-size: 12.5px; color: var(--ink-4); white-space: nowrap; font-family: var(--font-num); letter-spacing: .04em; }
@media (max-width: 800px) { .course-groups { grid-template-columns: 1fr; } }

/* 配套服务 */
.extras { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.extra { display: flex; align-items: center; gap: 14px; padding: 18px 20px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); font-size: 15px; font-weight: 500; }
.extra .i { color: var(--blue); }

/* 子页补充组件 */
.cert-stack--light { background: radial-gradient(120% 95% at 50% 0%, #FFFFFF 0%, #E4EAF3 60%, #CBD6E6 100%); }
.cert-stack--light img { box-shadow: 0 30px 60px -22px rgba(7, 22, 49, .45); }
.page-hero__media .dash { position: absolute; inset: 0; display: grid; place-items: center; padding: 7%; background: radial-gradient(120% 90% at 30% 0%, #1D4A94 0%, #0B1F44 62%, #081936 100%); }
.page-hero__media .dash svg { width: 100%; height: auto; filter: drop-shadow(0 30px 50px rgba(0, 0, 0, .45)); }
.page-hero__stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: clamp(40px, 5vw, 64px); border-top: 1px solid var(--line-dark); }
.page-hero__stats .stat + .stat { border-left-color: var(--line-dark); }
.page-hero__stats .stat__label { color: var(--on-dark-3); }
.page-hero__stats .stat__num small { color: var(--on-dark-2); }
@media (max-width: 760px) {
  .page-hero__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-hero__stats .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .page-hero__stats .stat:nth-child(n + 3) { border-top: 1px solid var(--line-dark); }
}

.steps--5 { --cols: 5; row-gap: 48px; }
.steps--5 .step:nth-child(5n)::before { display: none; }
@media (max-width: 1080px) {
  .steps--5 { --cols: 3; }
  .steps--5 .step:nth-child(5n)::before { display: block; }
  .steps--5 .step:nth-child(3n)::before { display: none; }
}
@media (max-width: 600px) {
  .steps--5 .step:nth-child(n)::before { display: block; }
  .steps--5 .step:last-child::before { display: none; }
}

.case__hit { position: absolute; inset: 0; z-index: 4; border-radius: inherit; }
.case__hit:focus-visible { outline-offset: -4px; }
.case__count {
  position: absolute; left: 22px; top: 22px; z-index: 2; display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 11px;
  border-radius: 999px; font-size: 12px; color: #fff; background: rgba(4, 12, 28, .5); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.case__count .i { width: 14px; height: 14px; }

.chip-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-cloud span {
  display: inline-flex; align-items: center; gap: 10px; height: 46px; padding: 0 20px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); font-size: 15px; font-weight: 500;
}
.chip-cloud span::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--orange); }

.mv-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.mv {
  position: relative; overflow: hidden; isolation: isolate; padding: 34px 32px 40px; border-radius: var(--r-lg); background: #fff; border: 1px solid var(--line);
}
.mv .mv__label { margin: 0; font: 600 12px/1 var(--font-num); letter-spacing: .2em; color: var(--orange); text-transform: uppercase; }
.mv h3 { margin-top: 16px; font-size: 26px; font-weight: 600; }
.mv p { margin-top: 14px; font-size: 15.5px; line-height: 1.85; color: var(--ink-2); }
.mv__big { position: absolute; right: 18px; top: 18px; z-index: -1; font: 600 64px/1 var(--font-num); color: var(--mist-2); pointer-events: none; }
@media (max-width: 900px) { .mv-grid { grid-template-columns: 1fr; } }

.role-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.role { padding: 28px 26px; border-radius: var(--r-lg); background: var(--mist); }
.role .feature__icon { background: #fff; }
.role h3 { margin-top: 22px; font-size: 18px; font-weight: 600; }
.role p { margin-top: 8px; font-size: 14px; line-height: 1.8; color: var(--ink-3); }
@media (max-width: 1000px) { .role-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .role-grid { grid-template-columns: 1fr; } }

.partner {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: clamp(28px, 4vw, 56px); margin-top: 16px;
  padding: clamp(28px, 4vw, 48px); border-radius: var(--r-xl); background: var(--navy-900); color: #fff;
}
.partner h3 { margin-top: 16px; font-size: 26px; font-weight: 600; }
.partner p:not(.eyebrow) { margin-top: 12px; color: var(--on-dark-2); font-size: 15px; }
.partner__cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.partner__cols h4 { font-size: 15px; font-weight: 600; margin-bottom: 10px; }
.partner__cols ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; font-size: 14px; color: var(--on-dark-2); }
.partner__cols li { display: flex; gap: 10px; }
.partner__cols li::before { content: ""; flex: none; width: 5px; height: 5px; margin-top: .75em; border-radius: 50%; background: var(--orange); }
@media (max-width: 900px) { .partner, .partner__cols { grid-template-columns: 1fr; } }

.qr-row { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 12px; }
.qr-card { display: grid; gap: 10px; justify-items: center; padding: 18px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); }
.qr-card img { width: 124px; height: 124px; object-fit: contain; }
.qr-card small { font-size: 13px; color: var(--ink-3); }

.page-hero--404 { min-height: 78vh; display: flex; align-items: center; }
.page-hero--404 .container { width: min(100% - var(--gutter) * 2, var(--container)); }

/* 业务服务总览页 */
.svc-rows { display: grid; gap: clamp(72px, 9vw, 128px); }
.svc-row { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(36px, 6vw, 96px); align-items: center; }
.svc-row:nth-child(even) .svc-row__media { order: 2; }
.svc-row__media { position: relative; overflow: hidden; aspect-ratio: 4 / 3; border-radius: var(--r-xl); background: var(--navy-900); box-shadow: var(--shadow-lg); }
.svc-row__media > img { width: 100%; height: 100%; object-fit: cover; }
.svc-row__media .dash { position: absolute; inset: 0; display: grid; place-items: center; padding: 7%; background: radial-gradient(120% 90% at 30% 0%, #1D4A94 0%, #0B1F44 62%, #081936 100%); }
.svc-row__media .dash svg { width: 100%; height: auto; filter: drop-shadow(0 30px 50px rgba(0, 0, 0, .45)); }
.svc-row__no { font: 600 13px/1 var(--font-num); letter-spacing: .16em; text-transform: uppercase; color: var(--orange); }
.svc-row h2 { margin-top: 16px; font-size: clamp(30px, 3vw, 42px); font-weight: 600; line-height: 1.2; }
.svc-row .lead { margin-top: 18px; }
.svc-row .checklist { margin-top: 26px; }
.svc-row .btn { margin-top: 34px; }
@media (max-width: 900px) {
  .svc-row { grid-template-columns: 1fr; }
  .svc-row:nth-child(even) .svc-row__media { order: 0; }
}

/* ---------- 21. 灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; height: 100%; height: 100dvh;
  display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr) auto; place-items: center; gap: 14px;
  padding: 72px 80px 28px; background: rgba(4, 12, 28, .96); color: #fff;
  overflow: hidden; overscroll-behavior: contain; opacity: 0; transition: opacity .25s;
}
.lightbox.is-open { opacity: 1; }
.lightbox__stage { position: relative; width: 100%; height: 100%; min-width: 0; min-height: 0; display: grid; place-items: center; }
.lightbox__img { display: block; width: 100%; height: 100%; min-width: 0; min-height: 0; object-fit: contain; }
.lightbox.is-loading .lightbox__img, .lightbox.has-error .lightbox__img { opacity: 0; }
.lightbox__status { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; padding: 24px; font-size: 14px; color: var(--on-dark-2); pointer-events: none; }
.lightbox__cap { max-width: 900px; max-height: 20vh; max-height: 20dvh; overflow-y: auto; overflow-wrap: anywhere; font-size: 14px; line-height: 1.6; color: var(--on-dark-2); text-align: center; }
.lightbox__cap b { color: #fff; font-weight: 600; margin-right: 10px; }
.lightbox__btn {
  position: absolute; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255, 255, 255, .1); color: #fff; transition: background-color .2s;
}
.lightbox__btn:hover { background: rgba(255, 255, 255, .22); }
.lightbox__close { right: 20px; top: 20px; }
.lightbox__prev { left: 16px; top: 50%; margin-top: -24px; }
.lightbox__next { right: 16px; top: 50%; margin-top: -24px; }
.lightbox__count { position: absolute; left: 24px; top: 30px; font: 500 14px/1 var(--font-num); color: var(--on-dark-3); letter-spacing: .08em; }
@media (max-width: 640px) {
  .lightbox { padding: calc(68px + env(safe-area-inset-top)) 14px calc(82px + env(safe-area-inset-bottom)); gap: 12px; }
  .lightbox__cap { font-size: 13px; }
  .lightbox__cap b { display: block; margin: 0 0 4px; }
  .lightbox__prev, .lightbox__next { top: auto; bottom: calc(18px + env(safe-area-inset-bottom)); margin: 0; }
  .lightbox__prev { left: calc(50% - 64px); }
  .lightbox__next { right: calc(50% - 64px); }
  .lightbox__close { top: calc(12px + env(safe-area-inset-top)); right: 14px; }
  .lightbox__count { top: calc(29px + env(safe-area-inset-top)); left: 18px; }
}

/* 业务总览与可展开详情 */
.service-section { scroll-margin-top: calc(var(--header-h) + 76px); }
.service-section .svc-row { scroll-margin-top: 64px; }
.service-section:nth-of-type(odd) { background: var(--mist); }
.service-section:nth-of-type(odd) .svc-row__media { order: 2; }
.service-details { margin-top: 38px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: clip; transition: border-color .3s, box-shadow .3s; }
.service-details:hover { border-color: #B9CEEA; box-shadow: var(--shadow-sm); }
.service-details > summary { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 24px 28px; cursor: pointer; list-style: none; border-bottom: 1px solid transparent; transition: background-color .3s, border-color .3s; }
.service-details > summary:hover { background: var(--blue-50); }
.service-details > summary::-webkit-details-marker { display: none; }
.service-details > summary b { display: block; font-size: 17px; font-weight: 600; }
.service-details > summary small { display: block; margin-top: 4px; color: var(--ink-3); font-size: 13px; }
.service-details__action { display: flex; flex: none; align-items: center; gap: 12px; color: var(--blue-700); font-size: 13px; font-weight: 500; }
.service-details__icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--blue-50); transition: color .3s, background-color .3s; }
.service-details__icon .i { width: 18px; height: 18px; transition: transform .4s var(--ease); }
.service-details__less { display: none; }
.service-details[open] > summary { border-bottom-color: var(--line); }
.service-details[open] .service-details__more { display: none; }
.service-details[open] .service-details__less { display: inline; }
.service-details[open] .service-details__icon { color: #fff; background: var(--blue); }
.service-details[open] .service-details__icon .i { transform: rotate(45deg); }
.js .service-details:not(.is-expanded) .service-details__icon .i { transform: none; }
.js .service-details:not(.is-expanded) .service-details__more { display: inline; }
.js .service-details:not(.is-expanded) .service-details__less { display: none; }
.service-details__hint { display: flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--ink-3); font-size: 13px; }
.service-details__hint .i { width: 16px; height: 16px; color: var(--blue); }
.service-details__body > .section { padding-block: clamp(40px, 5vw, 72px); }
.service-details__body .container { width: auto; max-width: none; margin-inline: 0; padding-inline: clamp(20px, 3vw, 40px); }
.service-details__body .h-2 { font-size: clamp(26px, 3vw, 38px); }
.service-details__body [id] { scroll-margin-top: 64px; }
@media (max-width: 900px) {
  .service-section:nth-of-type(odd) .svc-row__media { order: 0; }
  .service-details > summary { padding: 20px; }
}
@media (max-width: 480px) {
  .service-details > summary { gap: 12px; padding: 20px 16px; }
  .service-details__action { flex-direction: column-reverse; gap: 4px; font-size: 11px; }
  .service-details > summary small { max-width: 18em; font-size: 12px; }
}

/* ---------- 22. 动效 ---------- */
/* 信息卡片仅有轻微明暗反馈，不暗示整张卡片可点击。 */
@media (hover: hover) {
  .why-card:hover { border-color: rgba(255, 255, 255, .16); }
  .feature:hover, .pkg:hover, .spec:hover { border-color: #CCD5E1; }
  .sys:hover { border-color: rgba(127, 178, 255, .24); }
}
.js [data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform 1s var(--ease); transition-delay: calc(var(--d, 0) * 90ms); }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js [data-reveal="fade"] { transform: none; }
.js [data-reveal="scale"] { transform: scale(.96); }
.js [data-reveal="left"] { transform: translateX(-28px); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .ticker__track { animation: none; }
}

/* ---------- 23. 打印 ---------- */
@media print {
  .site-header, .dock, .mbar, .mobile-menu, .ticker { display: none !important; }
  .page-hero, .hero { padding-top: 24px; }
  body { color: #000; }
}