/* ==========================================================================
   青岛栖湖数据科技服务有限公司 · 公司门户
   设计基准宽度 1440px，所有尺寸、颜色、圆角与设计稿一一对应
   --------------------------------------------------------------------------
   目录
   01  设计变量（Design Tokens）
   02  基础重置与排版
   03  通用区块与栅格
   04  导航
   05  Hero 首屏
   06  信任条
   07  S01 业务全景
   08  S02 产品体系
   08b S03 电商商城（商城入口）
   09  S04 生态协作
   10  S05 服务能力
   11  S06 海外布局
   12  S07 服务商集群
   13  S08 落地路径
   14  S09 数商协同
   15  S10 合作 CTA
   16  Footer
   17  动效与无障碍
   18  响应式
   ========================================================================== */

/* ==========================================================================
   01  设计变量
   ========================================================================== */
:root {
  /* —— 颜色 —— */
  --ink: #0b0b0c;
  --ink-panel: #16161a;
  --ink-line: #26262b;
  --txt: #3d3d42;
  --txt-muted: #6b6b70;
  --txt-faint: #8a8a90;
  --line: #e7e7ea;
  --line-soft: #dddde1;
  --surface: #f5f5f7;
  --surface-hover: #f1f1f4;
  --accent: #0c6e79;
  --accent-soft: #5fd0c6;
  --accent-mint: #7fd8d0;
  --chip: #f2f7f7;
  --paper: #ffffff;
  --wordmark: #ededef;
  --dark-muted: #a8a8ae;
  --dark-faint: #9a9aa0;
  --dark-line: #3a3a40;

  /* —— 版心与间距 —— */
  --page: 1440px;
  --gutter: clamp(20px, 8.333vw, 120px);
  --panel-gutter: clamp(10px, 1.667vw, 24px);
  --panel-inset: calc(var(--gutter) - var(--panel-gutter));

  /* —— 圆角 —— */
  --r-pill: 999px;
  --r-panel: clamp(24px, 3.333vw, 48px);
  --r-card: clamp(20px, 2.222vw, 32px);
  --r-card-sm: clamp(18px, 1.944vw, 28px);
  --r-visual: clamp(20px, 2.5vw, 36px);

  /* —— 字号 —— */
  --fs-eyebrow: 13px;
  --fs-h1: clamp(38px, 5.556vw, 80px);
  --lh-h1: clamp(46px, 6.667vw, 96px);
  --fs-h2: clamp(27px, 3.056vw, 44px);
  --lh-h2: clamp(36px, 4.028vw, 58px);
  --fs-h2-lg: clamp(30px, 3.334vw, 48px);
  --lh-h2-lg: clamp(40px, 4.445vw, 64px);
  --fs-lead: clamp(15px, 1.32vw, 19px);
  --lh-lead: clamp(27px, 2.361vw, 34px);
  --fs-desc: clamp(15px, 1.181vw, 17px);
  --lh-desc: clamp(26px, 2.083vw, 30px);

  /* —— 字体 —— */
  --font-sans: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC",
    "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-num: "Inter", "SF Pro Display", "Segoe UI Variable Display", system-ui,
    -apple-system, "Segoe UI", Roboto, sans-serif;

  /* —— 阴影 —— */
  --shadow-nav: 0 6px 18px -4px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 2px 10px -4px rgba(11, 11, 12, 0.08);
}

/* ==========================================================================
   02  基础重置与排版
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
p,
figure {
  margin: 0;
}

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

img,
svg {
  display: block;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 页面容器：以 1440 为版心居中 */
.page {
  width: 100%;
  max-width: var(--page);
  margin: 0 auto;
  background: var(--paper);
  overflow-x: clip;
}

/* 数字统一使用 Inter 的等宽数字 */
.num {
  font-family: var(--font-num);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ==========================================================================
   03  通用区块与栅格
   ========================================================================== */
.sec {
  padding: 104px var(--gutter);
}

/* 圆角面板的外层，负责留出面板两侧的 24px 呼吸位 */
.panel-wrap {
  padding: 0 var(--panel-gutter);
  background: var(--paper);
}

.panel-wrap--top {
  padding-top: var(--panel-gutter);
}

/* 圆角面板本体 */
.panel {
  padding: var(--panel-inset);
  border-radius: var(--r-panel);
  background: var(--surface);
}

.panel--dark {
  background: var(--ink);
}

/* 区块标题组：eyebrow / 标题 / 说明 */
.sec-head {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.eyebrow {
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.panel--dark .eyebrow,
.sec--cta .eyebrow {
  color: var(--accent-mint);
}

.sec-title {
  font-size: var(--fs-h2);
  line-height: var(--lh-h2);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.panel--dark .sec-title,
.sec--cta .sec-title {
  color: var(--paper);
}

.sec-desc {
  max-width: 820px;
  font-size: var(--fs-desc);
  line-height: var(--lh-desc);
  color: var(--txt-muted);
}

.panel--dark .sec-desc,
.sec--cta .sec-desc {
  color: var(--dark-muted);
}

/* 区块标题组下方进入子页面的入口 */
.sec-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--accent);
  transition: gap 0.22s ease, color 0.22s ease;
}

.sec-more:hover {
  gap: 10px;
  color: var(--ink);
}

.panel--dark .sec-more {
  color: var(--accent-mint);
}

.panel--dark .sec-more:hover {
  color: var(--paper);
}

/* 栅格 */
.grid {
  display: grid;
  gap: 20px;
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* 基础卡片 */
.card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 240px;
  padding: 28px;
  border-radius: var(--r-card-sm);
  background: var(--surface);
  transition: background-color 0.25s ease, transform 0.25s ease;
}

.card--white {
  background: var(--paper);
}

.card--dark {
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
}

.card__idx {
  font-size: 13px;
  color: var(--accent);
}

.card__title {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
  color: var(--ink);
}

.card__desc {
  font-size: 14px;
  line-height: 24px;
  color: var(--txt-muted);
}

.card__meta {
  font-size: 13px;
  line-height: 22px;
  color: var(--txt-faint);
}

.card--dark .card__title {
  color: var(--paper);
}

.card--dark .card__desc {
  font-size: 13px;
  line-height: 22px;
  color: var(--dark-faint);
}

.card--dark .card__name {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
  color: var(--paper);
}

.card--dark .card__tag {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-mint);
}

/* 小标签 chip */
.chip {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  background: var(--chip);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--accent);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 32px;
  border: 0;
  border-radius: var(--r-pill);
  font-family: inherit;
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.22s ease, background-color 0.22s ease,
    border-color 0.22s ease, color 0.22s ease, box-shadow 0.22s ease;
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
}

.btn--ghost {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid #dcdce0;
}

.btn--light {
  background: var(--paper);
  color: var(--ink);
}

.btn--outline-dark {
  color: var(--paper);
  border: 1px solid var(--dark-line);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary:hover,
.btn--light:hover {
  box-shadow: 0 8px 22px -8px rgba(11, 11, 12, 0.45);
}

.btn--ghost:hover {
  border-color: #bfbfc6;
  background: #fafafa;
}

.btn--outline-dark:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: #56565e;
}

.btn:active {
  transform: translateY(0);
}

/* ==========================================================================
   04  导航
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 24px var(--gutter);
  background: var(--paper);
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.78);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 10px 10px 24px;
  border-radius: var(--r-pill);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-nav);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand__mark {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
}

.brand__name {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  position: relative;
  font-size: 15px;
  color: var(--txt);
  transition: color 0.2s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--ink);
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
  transform: scaleX(1);
}

.nav-cta {
  flex: 0 0 auto;
  padding: 11px 22px;
  font-size: 15px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--r-pill);
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  position: relative;
  display: block;
  width: 18px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.28s ease, opacity 0.2s ease;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.28s ease;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.site-header.is-open .nav-toggle span {
  background: transparent;
}

.site-header.is-open .nav-toggle span::before {
  transform: translateY(6px) rotate(45deg);
}

.site-header.is-open .nav-toggle span::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* ==========================================================================
   05  Hero 首屏
   ========================================================================== */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  padding: 56px var(--gutter) 40px;
  background: var(--paper);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 20px 9px 16px;
  border-radius: var(--r-pill);
  background: var(--surface);
  font-size: 14px;
  color: var(--txt);
}

.hero__badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.hero__title {
  width: 100%;
  font-size: var(--fs-h1);
  line-height: var(--lh-h1);
  font-weight: 500;
  text-align: center;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.hero__sub {
  max-width: 780px;
  font-size: var(--fs-lead);
  line-height: var(--lh-lead);
  text-align: center;
  color: var(--txt-muted);
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.hero__stage {
  position: relative;
  width: 100%;
}

.hero__visual {
  position: relative;
  width: 100%;
  height: clamp(280px, 36.111vw, 520px);
  border-radius: var(--r-visual);
  overflow: hidden;
  background: var(--ink);
}

.hero__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 毛玻璃数据浮层 */
.hero__stats {
  position: absolute;
  left: 40px;
  bottom: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  width: 540px;
  max-width: calc(100% - 80px);
  padding: 20px 30px;
  border-radius: var(--r-card-sm);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.9);
  -webkit-backdrop-filter: blur(28px);
  backdrop-filter: blur(28px);
  box-shadow: 0 10px 30px -18px rgba(0, 0, 0, 0.35);
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.hero__stat dt {
  font-size: 22px;
  line-height: 1.15;
  color: var(--ink);
}

.hero__stat dd {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--txt-muted);
  white-space: nowrap;
}

/* ==========================================================================
   06  信任条
   ========================================================================== */
.trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 4px var(--gutter) 64px;
  background: var(--paper);
}

.trust li {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--txt-faint);
}

.trust li:not(:last-child)::after {
  content: "";
  width: 1px;
  height: 14px;
  background: var(--line-soft);
}

/* ==========================================================================
   07  S01 业务全景
   ========================================================================== */
.sec--portfolio {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 96px var(--gutter) 110px;
}

.sec--portfolio .card {
  min-height: 240px;
}

/* ==========================================================================
   08  S02 产品体系
   ========================================================================== */
.panel--products,
.panel--services,
.panel--global,
.panel--roadmap {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.panel--global,
.panel--roadmap {
  gap: 48px;
}

.panel--products .card,
.panel--global .card {
  min-height: 280px;
}

.panel--global .card {
  min-height: 226px;
}

.panel--products .card {
  padding: 32px;
  border-radius: var(--r-card);
}

.sec--products .card__title,
.sec--services .card__title {
  font-size: 22px;
  line-height: 30px;
}

/* ==========================================================================
   08b  S03 电商商城（商城入口）
   ========================================================================== */
.sec--store {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 104px var(--gutter);
}

/* 深色入口卡：把零售场景从门户的黑白灰里"拎"出来 */
.store-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(28px, 3vw, 56px);
  padding: clamp(28px, 3.4vw, 52px);
  border-radius: var(--r-panel);
  background: var(--ink);
}

.store-entry__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.store-entry__chip {
  padding: 6px 14px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--ink-line);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--accent-mint);
}

.store-entry__title {
  font-size: clamp(26px, 2.6vw, 38px);
  line-height: 1.32;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.store-entry__desc {
  max-width: 520px;
  font-size: 15px;
  line-height: 27px;
  color: var(--dark-muted);
}

.store-entry__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.store-entry__actions .btn {
  padding: 13px 26px;
  font-size: 15px;
}

.store-entry__meta {
  font-size: 13px;
  color: #6e6e74;
}

.store-entry__thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.store-entry__thumbs li {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 10px;
  border-radius: 20px;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.store-entry__thumbs li:hover {
  transform: translateY(-3px);
  border-color: #33333a;
}

.store-entry__thumbs img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  background: #f4eee3;
}

.store-entry__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 0 2px 2px;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
}

/* 深底上的价格色需提亮，否则红色发闷 */
.store-entry__price span {
  font-size: 15px;
  font-weight: 600;
  color: #f28b7f;
}

.store-entry__price s {
  font-family: var(--font-sans);
  font-size: 11px;
  color: #74747a;
}

/* 卡片内的文字入口 */
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  transition: gap 0.22s ease, color 0.22s ease;
}

.card__link:hover {
  gap: 10px;
  color: var(--ink);
}

/* ==========================================================================
   09  S04 生态协作
   ========================================================================== */
.sec--ecosystem {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 104px var(--gutter);
}

.flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 20px;
}

.flow__arrow {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
}

.step {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 240px;
  padding: 32px;
  border-radius: var(--r-card);
  background: var(--surface);
}

.step__idx {
  font-size: 13px;
  color: var(--accent);
}

.step__title {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
  color: var(--ink);
}

.step__desc {
  font-size: 14px;
  line-height: 24px;
  color: var(--txt-muted);
}

.streams {
  display: flex;
  align-items: center;
  gap: 32px;
}

.stream {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 0;
  min-width: 0;
}

.stream__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

.stream__value {
  font-size: 15px;
  line-height: 26px;
  color: var(--txt);
}

.streams__divider {
  flex: 0 0 auto;
  width: 1px;
  height: 44px;
  background: var(--line);
}

.sec__caption {
  font-size: 14px;
  text-align: center;
  color: var(--txt-faint);
}

/* ==========================================================================
   10  S05 服务能力
   ========================================================================== */
.sec--services .card {
  min-height: 300px;
  padding: 32px;
  border-radius: var(--r-card);
}

.notice {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 40px 44px;
  border-radius: var(--r-card);
  background: var(--ink);
}

.notice__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.notice__icon {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
}

.notice__title {
  font-size: 22px;
  line-height: 30px;
  font-weight: 600;
  color: var(--paper);
}

.notice__desc {
  font-size: 15px;
  line-height: 26px;
  color: var(--dark-muted);
}

.svc-list .card {
  min-height: 156px;
  padding: 28px;
  gap: 10px;
}

.svc-list .card__title {
  font-size: 17px;
  line-height: 26px;
}

/* ==========================================================================
   11  S06 海外布局
   ========================================================================== */
.panel--global {
  background: var(--ink);
}

.panel--global .sec-desc {
  max-width: 880px;
}

.globe {
  width: 100%;
  height: clamp(220px, 26.389vw, 380px);
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--ink-panel);
}

.globe img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.panel--global .card {
  gap: 12px;
}

/* ==========================================================================
   12  S07 服务商集群
   ========================================================================== */
.sec--cluster {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 104px var(--gutter);
}

.sec--cluster .card__title {
  font-size: 19px;
  line-height: 28px;
}

.roles {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.roles__title {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
  color: var(--ink);
}

.roles__row {
  display: flex;
  align-items: flex-start;
  gap: 32px;
}

.role {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1 1 0;
  min-width: 0;
}

.role__title {
  font-size: 16px;
  line-height: 26px;
  font-weight: 600;
  color: var(--ink);
}

.role__desc {
  font-size: 14px;
  line-height: 24px;
  color: var(--txt-muted);
}

.roles__divider {
  flex: 0 0 auto;
  width: 1px;
  height: 64px;
  margin-top: 4px;
  background: var(--line);
}

.roles__note {
  font-size: 14px;
  text-align: center;
  color: var(--txt-faint);
}

/* ==========================================================================
   13  S08 落地路径
   ========================================================================== */
.panel--roadmap {
  background: var(--surface);
}

.roadmap {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 16px;
}

.roadmap__arrow {
  width: 20px;
  height: 20px;
}

.roadmap .step {
  min-height: 250px;
  gap: 12px;
  padding: 28px;
  background: var(--paper);
}

.compliance {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.compliance__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--txt);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.chips li {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--paper);
  border: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.4;
  color: var(--txt);
}

/* ==========================================================================
   14  S09 数商协同
   ========================================================================== */
.sec--settlement {
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding: 104px var(--gutter);
}

.sec--settlement .card {
  min-height: 210px;
  gap: 12px;
}

.facts {
  display: flex;
  align-items: center;
  gap: 32px;
}

.fact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 0;
  min-width: 0;
}

.fact__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

.fact__value {
  font-size: 15px;
  line-height: 26px;
  color: var(--ink);
}

.facts__divider {
  flex: 0 0 auto;
  width: 1px;
  height: 44px;
  background: var(--line);
}

/* ==========================================================================
   15  S10 合作 CTA
   ========================================================================== */
.sec--cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 104px clamp(28px, 6.667vw, 96px);
  border-radius: var(--r-panel);
  background: var(--ink);
  text-align: center;
}

.sec--cta .sec-title {
  width: 100%;
  font-size: var(--fs-h2-lg);
  line-height: var(--lh-h2-lg);
  text-align: center;
}

.sec--cta__sub {
  max-width: 780px;
  font-size: var(--fs-desc);
  line-height: clamp(26px, 2.222vw, 32px);
  color: var(--dark-muted);
  /* 两行均衡断行，避免末行只剩一两个字 */
  text-wrap: balance;
}

.sec--cta__btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.sec--cta__btns .btn {
  padding: 16px 34px;
}

.sec--cta__info {
  font-size: 14px;
  color: #6e6e74;
}

/* 合作咨询弹层：邮箱不占版面，点按钮才浮现 */
body.is-mail-open {
  overflow: hidden;
}

.mail-dialog {
  display: none;
  width: min(452px, calc(100vw - 40px));
  max-width: none;
  margin: auto;
  padding: 44px clamp(26px, 6vw, 42px) 30px;
  border: 0;
  border-radius: 24px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 44px 90px -34px rgba(6, 6, 8, 0.6);
  overscroll-behavior: contain;
}

.mail-dialog::backdrop {
  background: rgba(6, 6, 8, 0.58);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
}

/* 入场只动 transform，不做透明度淡入：
   卡片被 showModal() 放进顶层后，若动画时间轴没推进（后台标签页、预览 iframe、
   系统关掉动效），opacity 淡入会永久停在 0 —— 表现为「点了按钮没反应」。
   只位移/缩放时，最坏情况也只是卡片静止在正常位置，始终可见。 */
.mail-dialog[open] {
  display: block;
  opacity: 1;
  animation: mailDialogIn 0.28s cubic-bezier(0.22, 0.7, 0.3, 1);
}

/* 老内核（无 <dialog>，如微信内置浏览器、iOS 15.4 以下）：
   showModal 不可用时，改由 body.is-mail-open 手动做成浮层。 */
body.is-mail-legacy.is-mail-open {
  overflow: hidden;
}

body.is-mail-legacy.is-mail-open::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(6, 6, 8, 0.58);
  -webkit-backdrop-filter: blur(7px);
  backdrop-filter: blur(7px);
}

body.is-mail-legacy.is-mail-open .mail-dialog {
  display: block;
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 1000;
  margin: 0;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  transform: translate(-50%, -50%);
  opacity: 1;
  animation: none;
}

@keyframes mailDialogIn {
  from {
    transform: translateY(12px) scale(0.965);
  }
  to {
    transform: none;
  }
}

.mail-dialog__close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--txt-faint);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.mail-dialog__close:hover {
  background: var(--surface);
  color: var(--ink);
}

.mail-dialog__close svg {
  width: 17px;
  height: 17px;
}

.mail-dialog__label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-align: center;
}

.mail-dialog__label::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 8px;
  border-radius: 50%;
  background: currentColor;
  vertical-align: 2px;
}

.mail-dialog__title {
  margin-top: 13px;
  font-size: clamp(21px, 2.4vw, 25px);
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-align: center;
}

.mail-dialog__addr {
  margin-top: 22px;
  padding: 15px 16px;
  border-radius: 14px;
  background: var(--surface);
  font-family: var(--font-num);
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.005em;
  text-align: center;
  word-break: break-all;
  user-select: all;
}

.mail-dialog__note {
  margin-top: 15px;
  font-size: 13px;
  line-height: 23px;
  color: var(--txt-muted);
  text-align: center;
  text-wrap: pretty;
}

.mail-dialog__acts {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

.mail-dialog__acts .btn {
  flex: 1 1 0;
  min-width: 0;
  padding: 14px 16px;
  border: 0;
  font-size: 15px;
  cursor: pointer;
}

.mail-dialog__acts .btn--ghost {
  border: 1px solid #dcdce0;
}

.mail-dialog__hint {
  min-height: 17px;
  margin-top: 11px;
  font-size: 12.5px;
  line-height: 17px;
  color: var(--accent);
  text-align: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.mail-dialog__hint.is-on {
  opacity: 1;
}

@media (max-width: 420px) {
  .mail-dialog {
    padding: 40px 20px 24px;
  }

  .mail-dialog__addr {
    padding: 13px 10px;
    font-size: 18px;
  }

  .mail-dialog__acts {
    flex-direction: column;
  }
}

/* ==========================================================================
   16  Footer
   ========================================================================== */
.site-footer {
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding: 88px var(--gutter) 36px;
  background: var(--paper);
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 80px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 340px;
  flex: 0 0 auto;
}

.footer-brand__tagline {
  font-size: 15px;
  color: var(--txt);
}

.footer-brand__desc {
  font-size: 13px;
  line-height: 22px;
  color: var(--txt-faint);
}

/* 页脚常驻邮箱：每页都可见，无需展开任何面板 */
.footer-mail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  margin-top: 2px;
  padding: 7px 15px 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 13px;
  color: var(--txt-muted);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.footer-mail:hover {
  color: var(--accent);
  border-color: rgba(12, 110, 121, 0.3);
  background: rgba(12, 110, 121, 0.05);
}

.footer-mail__ico {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

.footer-mail span {
  word-break: break-all;
}

.footer-cols {
  display: flex;
  gap: 72px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 140px;
  flex: 0 0 auto;
}

.footer-col__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.footer-col a {
  font-size: 14px;
  color: var(--txt-muted);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--ink);
}

.footer-wordmark {
  font-size: clamp(46px, 7.778vw, 112px);
  line-height: 1.09;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--wordmark);
  user-select: none;
}

.footer-hr {
  height: 1px;
  background: var(--line);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 13px;
  color: var(--txt-faint);
}

.footer-copy__sep {
  margin: 0 8px;
  color: var(--line-soft);
}

.footer-icp {
  color: var(--txt-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.footer-icp:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ==========================================================================
   17  动效与无障碍
   ========================================================================== */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: opacity, transform;
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* 卡片悬停：浅灰卡换底色，白卡轻微上浮，深色卡提亮描边 */
.card:not(.card--white):not(.card--dark):hover {
  background: var(--surface-hover);
}

.card--white:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.card--dark:hover {
  border-color: #33333a;
}

/* 锁住词组不折断（中文标题、短句用） */
.nb {
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 12px 20px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
}

.skip-link:focus {
  left: var(--gutter);
  top: 12px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ==========================================================================
   18  响应式
   ========================================================================== */

/* —— 中小屏：栅格降列 —— */
@media (max-width: 1100px) {
  :root {
    --gutter: 48px;
    --panel-gutter: 16px;
  }

  .grid--4,
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .store-entry {
    grid-template-columns: minmax(0, 1fr);
  }

  .store-entry__thumbs {
    max-width: 620px;
  }

  .nav-links {
    gap: 22px;
  }

  .flow,
  .roadmap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .flow__arrow,
  .roadmap__arrow {
    display: none;
  }

  .streams,
  .facts,
  .roles__row {
    flex-wrap: wrap;
    gap: 24px;
  }

  .streams__divider,
  .facts__divider,
  .roles__divider {
    display: none;
  }

  .stream,
  .fact,
  .role {
    flex: 1 1 calc(50% - 12px);
  }

  .footer-top {
    flex-direction: column;
    gap: 48px;
  }

  .footer-brand {
    width: 100%;
    max-width: 420px;
  }
}

/* —— 平板竖屏 / 移动端 —— */
@media (max-width: 860px) {
  :root {
    --gutter: 24px;
    --panel-gutter: 10px;
    --fs-h1: 40px;
    --lh-h1: 50px;
  }

  html {
    scroll-padding-top: 96px;
  }

  .site-header {
    padding: 14px var(--gutter);
  }

  .navbar {
    padding: 8px 8px 8px 18px;
  }

  /* 导航折叠 */
  .nav-toggle {
    display: inline-flex;
  }

  .nav-cta {
    display: none;
  }

  .nav-links {
    position: absolute;
    left: var(--gutter);
    right: var(--gutter);
    top: calc(100% - 10px);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px;
    border-radius: 24px;
    background: var(--paper);
    border: 1px solid var(--line);
    box-shadow: 0 18px 40px -20px rgba(11, 11, 12, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  }

  .site-header.is-open .nav-links {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 12px 14px;
    border-radius: 14px;
    font-size: 16px;
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links a:hover,
  .nav-links a.is-active {
    background: var(--surface);
  }

  /* 区块间距收敛 */
  .sec,
  .sec--store,
  .sec--portfolio,
  .sec--ecosystem,
  .sec--cluster,
  .sec--settlement {
    gap: 32px;
    padding: 56px var(--gutter);
  }

  .store-entry {
    gap: 24px;
    padding: 24px;
    border-radius: 28px;
  }

  .store-entry__thumbs {
    gap: 8px;
  }

  .store-entry__thumbs li {
    gap: 7px;
    padding: 8px;
    border-radius: 16px;
  }

  .store-entry__price span {
    font-size: 13px;
  }

  .store-entry__actions {
    width: 100%;
  }

  .store-entry__actions .btn {
    flex: 1 1 auto;
    padding: 13px 18px;
  }

  .panel--products,
  .panel--services,
  .panel--global,
  .panel--roadmap {
    gap: 32px;
  }

  .hero {
    gap: 24px;
    padding: 32px var(--gutter) 24px;
  }

  .trust {
    gap: 14px 20px;
    padding: 0 var(--gutter) 40px;
  }

  .trust li {
    gap: 20px;
  }

  .hero__visual {
    height: 320px;
  }

  /* 数据浮层改为图片下方的独立卡片，避免被主图裁切 */
  .hero__stage {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .hero__stats {
    position: static;
    width: 100%;
    max-width: 100%;
    padding: 18px 20px;
    gap: 12px;
    background: var(--surface);
    border-color: var(--line);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    box-shadow: none;
  }

  .hero__stat dd {
    white-space: normal;
  }

  .grid--4,
  .grid--3,
  .grid--2,
  .flow,
  .roadmap {
    grid-template-columns: minmax(0, 1fr);
  }

  .card,
  .step {
    min-height: 0;
  }

  .stream,
  .fact,
  .role {
    flex: 1 1 100%;
  }

  .sec--cta {
    padding: 56px 24px;
  }

  /* 窄屏放开词组锁定，交给浏览器自然断行 */
  .sec--cta__sub .nb {
    white-space: normal;
  }

  .footer-cols {
    flex-wrap: wrap;
    gap: 32px 48px;
  }

  /* 字标在窄屏降到不溢出的字号，避免被 overflow 裁掉 */
  .footer-wordmark {
    font-size: clamp(26px, 7.4vw, 46px);
    line-height: 1.16;
  }

  .footer-col {
    width: auto;
    min-width: 120px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  /* 窄屏版权与备案号各占一行，避免分隔点落在行尾 */
  .footer-copy__sep {
    display: none;
  }

  .footer-icp {
    display: block;
    margin-top: 4px;
  }
}

@media (max-width: 480px) {
  .hero__ctas,
  .sec--cta__btns {
    width: 100%;
    flex-direction: column;
  }

  .hero__ctas .btn,
  .sec--cta__btns .btn {
    width: 100%;
  }

  .hero__stats {
    flex-wrap: wrap;
  }

  .hero__stat {
    flex: 1 1 0;
    min-width: 0;
  }
}

/* —— 打印 —— */
@media print {
  .site-header {
    position: static;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}