/* =========================================================
   和数据官网 · 视觉系统 v2（清爽 · 国际企业风）
   原则：白底大留白、黑白灰为主、朱砂红只做点睛；无光晕、无玻璃、无渐变；
         全站黑体；细分割线、克制阴影；浅色为默认，深色可切换。
   ========================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  /* 中性色（浅色） */
  --bg: #FFFFFF;
  --bg-2: #F6F7F9;          /* 交替区块底 */
  --bg-3: #EDEFF2;          /* 图标底 / 表头 */
  --card: #FFFFFF;
  --hi: #0B0D12;            /* 标题 */
  --text: #1F2329;
  --text-2: #4B5563;
  --muted: #6B7280;
  --placeholder: #9AA1AC;
  --border: #E4E7EB;
  --border-2: #C8CDD5;
  --border-hi: #0B0D12;     /* 悬停描边 */
  /* 品牌色 */
  --red: #C0272D;
  --red-hi: #B8242A;        /* 文字链接 */
  --red-dk: #9E1F25;        /* 按钮悬停 */
  --red-tint: rgba(192, 39, 45, .08);
  --paper: #FFFFFF;
  --ok: #1E7A46;
  --err: #B8242A;
  --prose: #2A2F36;
  --tbd-bg: #FFF4D6;
  --tbd-fg: #8A5A00;
  --tbd-line: rgba(138, 90, 0, .35);
  --shadow-sm: 0 1px 2px rgba(11, 13, 18, .04), 0 2px 8px rgba(11, 13, 18, .04);
  --shadow: 0 8px 24px rgba(11, 13, 18, .08);
  --shadow-lg: 0 16px 48px rgba(11, 13, 18, .12);
  /* 插画 */
  --art-text: #1F2329;
  --art-dim: #6B7280;
  --art-line: rgba(11, 13, 18, .18);
  --art-line-2: rgba(11, 13, 18, .42);
  --art-box: #FFFFFF;
  --art-cell: #F1F3F6;
  --art-core: #FFFFFF;
  --art-alt: #0B0D12;
  --art-off: #D4D8DF;
  --art-fill: rgba(11, 13, 18, .04);
  --art-accent: #C0272D;
  --art-glow: rgba(11, 13, 18, .035);
  /* 几何 */
  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;
  --container: 1200px;
  --header-h: 64px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "Segoe UI", Inter, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

/* 深色：中性深底，同样克制 */
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0B0E14; --bg-2: #10141C; --bg-3: #1A202B; --card: #11151E;
  --hi: #F5F6F8; --text: #D7DBE2; --text-2: #A3ABB8; --muted: #7D8695; --placeholder: #5E6673;
  --border: rgba(255, 255, 255, .09); --border-2: rgba(255, 255, 255, .18); --border-hi: rgba(255, 255, 255, .6);
  --red-hi: #F0686D; --red-dk: #A8232A; --red-tint: rgba(240, 104, 109, .1);
  --ok: #6FCF97; --err: #F0686D; --prose: #CBD0D8;
  --tbd-bg: rgba(251, 191, 36, .1); --tbd-fg: #FBBF24; --tbd-line: rgba(251, 191, 36, .4);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3); --shadow: 0 8px 24px rgba(0, 0, 0, .4); --shadow-lg: 0 16px 48px rgba(0, 0, 0, .5);
  --art-text: #E6E9EE; --art-dim: #8B94A3; --art-line: rgba(255, 255, 255, .16); --art-line-2: rgba(255, 255, 255, .4);
  --art-box: #11151E; --art-cell: #1A202B; --art-core: #FFFFFF; --art-alt: #F5F6F8; --art-off: #2A313D; --art-fill: rgba(255, 255, 255, .04); --art-accent: #E5484D; --art-glow: rgba(255, 255, 255, .03);
  color-scheme: dark;
} }
:root[data-theme="dark"] {
  --bg: #0B0E14; --bg-2: #10141C; --bg-3: #1A202B; --card: #11151E;
  --hi: #F5F6F8; --text: #D7DBE2; --text-2: #A3ABB8; --muted: #7D8695; --placeholder: #5E6673;
  --border: rgba(255, 255, 255, .09); --border-2: rgba(255, 255, 255, .18); --border-hi: rgba(255, 255, 255, .6);
  --red-hi: #F0686D; --red-dk: #A8232A; --red-tint: rgba(240, 104, 109, .1);
  --ok: #6FCF97; --err: #F0686D; --prose: #CBD0D8;
  --tbd-bg: rgba(251, 191, 36, .1); --tbd-fg: #FBBF24; --tbd-line: rgba(251, 191, 36, .4);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3); --shadow: 0 8px 24px rgba(0, 0, 0, .4); --shadow-lg: 0 16px 48px rgba(0, 0, 0, .5);
  --art-text: #E6E9EE; --art-dim: #8B94A3; --art-line: rgba(255, 255, 255, .16); --art-line-2: rgba(255, 255, 255, .4);
  --art-box: #11151E; --art-cell: #1A202B; --art-core: #FFFFFF; --art-alt: #F5F6F8; --art-off: #2A313D; --art-fill: rgba(255, 255, 255, .04); --art-accent: #E5484D; --art-glow: rgba(255, 255, 255, .03);
  color-scheme: dark;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); background: var(--bg); }
body { margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: var(--red-hi); text-decoration: none; transition: color .15s; }
a:hover { color: var(--red-dk); }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.2; color: var(--hi); font-weight: 600; letter-spacing: -.015em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
strong { font-weight: 600; }
::selection { background: rgba(192, 39, 45, .18); }
:focus-visible { outline: 2px solid var(--hi); outline-offset: 3px; border-radius: 2px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }
@media (min-width: 768px) { .container { padding: 0 32px; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--hi); color: var(--bg); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

/* 旧类名：原渐变文字，现为普通标题色 */
.grad-text { color: inherit; }

/* 占位标记（上线前全部替换） */
.tbd { display: inline-block; background: var(--tbd-bg) !important; color: var(--tbd-fg) !important; border: 1px dashed var(--tbd-line); border-radius: 4px; padding: 0 6px; font-weight: 500; font-size: .88em; line-height: 1.6; -webkit-text-fill-color: var(--tbd-fg); }

/* 图标 */
.ic { width: 22px; height: 22px; flex: none; }
.ic--sm { width: 18px; height: 18px; }
.ic--xs { width: 14px; height: 14px; }

/* ---------- 按钮 ---------- */
.btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 22px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; line-height: 1; border: 1px solid transparent; transition: background .15s, border-color .15s, color .15s; white-space: nowrap; }
.btn--primary { background: var(--red); color: #fff; border-color: var(--red); }
.btn--primary:hover { background: var(--red-dk); border-color: var(--red-dk); color: #fff; }
.btn--ghost, .btn--outline { background: transparent; border-color: var(--border-2); color: var(--hi); }
.btn--ghost:hover, .btn--outline:hover { border-color: var(--border-hi); color: var(--hi); }
.btn--sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn--block { width: 100%; }
.btn .ic { transition: transform .2s; }
.btn:hover .ic { transform: translateX(2px); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* 文字链接（带箭头） */
.link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--hi); }
.link .ic { transition: transform .2s; }
.link:hover { color: var(--red-hi); }
.link:hover .ic { transform: translateX(3px); }

/* ---------- 页头 ---------- */
.header { position: sticky; top: 0; z-index: 50; background: var(--bg); border-bottom: 1px solid var(--border); }
.header.is-scrolled { box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; height: var(--header-h); gap: 28px; }
.logo { display: inline-flex; align-items: center; flex: none; }
.logo img { display: block; height: 32px; width: auto; }
.logo--sm img { height: 30px; }
.logo--footer img { height: 48px; }
.nav { display: none; flex: 1; }
.nav__list { display: flex; list-style: none; gap: 4px; }
.nav__item { position: relative; }
.nav__link { position: relative; display: inline-flex; align-items: center; gap: 4px; height: var(--header-h); padding: 0 12px; white-space: nowrap; color: var(--text); font-size: 15px; font-weight: 500; }
.nav__link:hover, .nav__link.is-active { color: var(--hi); }
.nav__link.is-active::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: -1px; height: 2px; background: var(--red); }
.nav__link .ic { opacity: .5; transition: transform .2s; }
.has-menu:hover .nav__link .ic, .has-menu:focus-within .nav__link .ic { transform: rotate(180deg); opacity: 1; }

/* 分组大菜单：白底面板 + 细描边 + 柔和阴影 */
.mega { position: absolute; left: 50%; translate: -50% 0; top: 100%; display: flex; align-items: stretch; padding: 8px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(6px); transition: opacity .16s, transform .16s, visibility .16s; }
.mega::before { content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px; }
.has-menu:hover .mega, .has-menu:focus-within .mega { opacity: 1; visibility: visible; transform: none; }
.mega__groups { display: flex; gap: 4px; padding: 8px; }
.mega__group { width: 260px; }
.mega__group--2 { width: 520px; }
.mega__group--2 .mega__list { display: grid; grid-template-columns: 1fr 1fr; column-gap: 4px; }
.mega__group + .mega__group { border-left: 1px solid var(--border); padding-left: 8px; margin-left: 4px; }
.mega__title { margin: 6px 12px 6px; font-size: 12px; font-weight: 600; letter-spacing: .06em; color: var(--muted); text-transform: uppercase; }
.mega__list { list-style: none; }
.mega__link { display: flex; align-items: flex-start; gap: 12px; padding: 10px 12px; border-radius: var(--radius-sm); color: var(--text); transition: background .15s; }
.mega__link:hover, .mega__link:focus-visible { background: var(--bg-2); }
.mega__ic { display: grid; place-items: center; width: 32px; height: 32px; flex: none; margin-top: 1px; border-radius: 6px; background: var(--bg-3); color: var(--hi); transition: background .15s, color .15s; }
.mega__link:hover .mega__ic { background: var(--hi); color: var(--bg); }
.mega__body { min-width: 0; }
.mega__body strong { display: block; font-size: 15px; font-weight: 600; line-height: 1.4; color: var(--hi); }
.mega__body span { display: block; margin-top: 2px; font-size: 13px; line-height: 1.5; color: var(--muted); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.mega__aside { display: flex; flex-direction: column; gap: 8px; width: 240px; flex: none; margin: 8px 8px 8px 12px; padding: 20px; border-radius: var(--radius); color: var(--text); background: var(--bg-2); border: 1px solid transparent; transition: border-color .15s; }
.mega__aside:hover { border-color: var(--border-2); color: var(--text); }
.mega__eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .06em; color: var(--red-hi); text-transform: uppercase; }
.mega__aside strong { font-size: 17px; line-height: 1.35; color: var(--hi); font-weight: 600; }
.mega__text { font-size: 13px; line-height: 1.6; color: var(--text-2); }
.mega__cta { display: inline-flex; align-items: center; gap: 4px; margin-top: auto; padding-top: 8px; font-size: 13px; font-weight: 600; color: var(--hi); }
.mega__cta .ic { transition: transform .2s; }
.mega__aside:hover .mega__cta .ic { transform: translateX(3px); }

.header__actions { display: flex; align-items: center; gap: 8px; margin-left: auto; flex: none; }
.header__phone { display: none; align-items: center; gap: 6px; margin-right: 8px; color: var(--hi); font-weight: 600; font-size: 15px; font-variant-numeric: tabular-nums; }
.header__actions .btn { display: none; }
.icon-btn { display: inline-grid; place-items: center; width: 38px; height: 38px; border: 1px solid transparent; border-radius: var(--radius-sm); background: transparent; color: var(--text); }
.icon-btn:hover { background: var(--bg-2); color: var(--hi); }
@media (min-width: 1180px) {
  .nav { display: block; }
  .header__menu { display: none; }
  .header__actions .btn { display: inline-flex; }
}
@media (min-width: 1480px) { .header__phone { display: inline-flex; } }

/* 移动抽屉 */
.drawer { position: fixed; inset: 0; z-index: 80; background: rgba(11, 13, 18, .4); }
.drawer[hidden] { display: none; }
.drawer__panel { position: absolute; right: 0; top: 0; bottom: 0; width: min(88vw, 380px); background: var(--bg); border-left: 1px solid var(--border); padding: 12px 24px 28px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }
.drawer__head { display: flex; justify-content: space-between; align-items: center; height: 44px; }
.drawer__list { list-style: none; flex: 1; }
.drawer__list > li { border-bottom: 1px solid var(--border); }
.drawer__list a, .drawer__list summary { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; color: var(--hi); font-weight: 600; list-style: none; cursor: pointer; }
.drawer__list summary::-webkit-details-marker { display: none; }
.drawer__list summary .ic { transition: transform .2s; color: var(--muted); }
.drawer__list details[open] summary .ic { transform: rotate(180deg); }
.drawer__list ul { list-style: none; padding: 0 0 10px 12px; }
.drawer__list ul a { font-weight: 400; padding: 10px 0; color: var(--text-2); }

/* 面包屑 */
.crumbs { position: absolute; left: 0; right: 0; z-index: 3; }
.crumbs ol { display: flex; flex-wrap: wrap; list-style: none; gap: 6px; padding: 20px 0 0; font-size: 13px; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 6px; opacity: .4; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--hi); }
main { position: relative; }

/* ---------- 首页首屏 ---------- */
.hero { position: relative; border-bottom: 1px solid var(--border); }
.hero__inner { position: relative; padding: 64px 0 48px; display: grid; gap: 32px; align-items: center; }
.hero h1 { font-size: clamp(36px, 4.8vw, 60px); line-height: 1.12; letter-spacing: -.025em; margin-bottom: .4em; font-weight: 600; }
.hero .lead { color: var(--text-2); font-size: clamp(16px, 1.4vw, 19px); line-height: 1.7; max-width: 32em; }
.hero__visual { display: none; }
.br-lg { display: none; }
@media (min-width: 768px) { .br-lg { display: inline; } }
@media (min-width: 1000px) {
  .hero__inner { grid-template-columns: 1.1fr .9fr; padding: 96px 0 64px; min-height: 600px; gap: 48px; }
  .hero__visual { display: block; }
}
.art--stack { width: 100%; max-width: 540px; margin-left: auto; }
.stk-layer { opacity: 0; transform: translateY(-10px); animation: stkIn .7s cubic-bezier(.2, .8, .2, 1) forwards; animation-delay: calc(var(--d) + .15s); }
@keyframes stkIn { to { opacity: 1; transform: none; } }
.float-chip { animation: floaty 6s ease-in-out infinite; animation-delay: var(--d); }
@keyframes floaty { 50% { transform: translateY(-5px); } }

.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; color: var(--red-hi); letter-spacing: .02em; margin-bottom: 20px; }
.eyebrow::before { content: ""; width: 20px; height: 2px; background: var(--red); }

/* 关键数字：顶部细线 + 大数字（企业官网常见做法） */
.stats { position: relative; display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px 24px; margin-bottom: 64px; }
.stats__item { position: relative; padding-top: 18px; border-top: 1px solid var(--border-2); }
.stats__value { font-size: clamp(28px, 3vw, 40px); font-weight: 600; line-height: 1.1; letter-spacing: -.02em; color: var(--hi); font-variant-numeric: tabular-nums; }
.stats__value .tbd { font-size: 15px; vertical-align: middle; }
.stats__label { color: var(--muted); font-size: 14px; margin-top: 6px; }
@media (min-width: 768px) { .stats { grid-template-columns: repeat(4, 1fr); gap: 32px; } }

/* ---------- 内页首屏 ---------- */
.page-hero { position: relative; border-bottom: 1px solid var(--border); background: var(--bg); }
.page-hero__inner { padding: 88px 20px 56px; display: grid; gap: 32px; align-items: center; }
.page-hero h1 { font-size: clamp(32px, 4.2vw, 52px); letter-spacing: -.025em; line-height: 1.12; }
.page-hero .lead { color: var(--text-2); font-size: 17px; line-height: 1.7; max-width: 36em; margin: 0; }
.page-hero__art { display: none; }
@media (min-width: 768px) { .page-hero__inner { padding: 112px 32px 72px; } }
@media (min-width: 1000px) {
  .page-hero__inner.has-aside { grid-template-columns: 1.15fr .85fr; gap: 56px; }
  .page-hero__art { display: block; }
  .page-hero__art .art { width: 100%; max-width: 440px; margin-left: auto; }
}
.hero-aside { display: grid; gap: 10px; padding: 24px; border-radius: var(--radius); background: var(--bg-2); border: 1px solid var(--border); }
.hero-aside h2 { font-size: 13px; color: var(--muted); font-weight: 600; letter-spacing: .04em; margin: 0 0 4px; }

/* ---------- 区块 ---------- */
.section { position: relative; padding: 72px 0; }
.section--alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section--alt + .section--alt { border-top: 0; }
.section--glow::before { display: none; }
.section__head { position: relative; max-width: 720px; margin-bottom: 48px; }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section__kicker { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .12em; color: var(--red-hi); text-transform: uppercase; margin-bottom: 14px; }
.section__head h2 { font-size: clamp(26px, 3vw, 38px); letter-spacing: -.02em; line-height: 1.2; }
.section__head p { color: var(--text-2); font-size: 17px; margin: 0; line-height: 1.7; }
@media (min-width: 768px) { .section { padding: 104px 0; } }

/* ---------- 卡片 ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}
.card { position: relative; display: flex; flex-direction: column; padding: 28px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); color: var(--text); overflow: hidden; transition: border-color .2s, box-shadow .2s, transform .2s; }
.card::before { display: none; }
.card h3 { font-size: 18px; margin-bottom: 8px; line-height: 1.35; }
.card p { color: var(--text-2); font-size: 15px; margin: 0; line-height: 1.65; }
.card--link:hover { color: var(--text); border-color: var(--border-2); box-shadow: var(--shadow); transform: translateY(-2px); }
.card__icon { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: var(--radius-sm); margin-bottom: 20px; color: var(--hi); background: var(--bg-3); }
.card--new .card__icon { color: var(--hi); background: var(--bg-3); }
.card > .checklist { margin-top: 14px; }
.card__num { font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 12px; letter-spacing: .08em; }
.card__more { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 22px; color: var(--hi); font-size: 14px; font-weight: 600; }
.card__more .ic { transition: transform .2s; }
.card--link:hover .card__more { color: var(--red-hi); }
.card--link:hover .card__more .ic { transform: translateX(4px); }
.badge { position: absolute; top: 24px; right: 24px; font-size: 12px; font-weight: 600; color: var(--text-2); background: var(--bg-2); border: 1px solid var(--border); padding: 2px 10px; border-radius: 999px; line-height: 1.6; }
.section--alt .card { box-shadow: var(--shadow-sm); border-color: transparent; }
.section--alt .card--link:hover { border-color: var(--border-2); }
.section--alt .badge, .section--alt .card__icon { background: var(--bg-3); }

/* 首页业务 bento */
.bento { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .bento { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .bento { grid-template-columns: repeat(3, 1fr); } }
.bento .card { min-height: 236px; }
.bento .card > p { max-width: 72%; }
@media (min-width: 1000px) { .bento .card > p { max-width: 66%; } }
.bento .card__art { position: absolute; right: -28px; bottom: -40px; width: 200px; opacity: .7; -webkit-mask-image: radial-gradient(circle at 65% 65%, #000 20%, transparent 70%); mask-image: radial-gradient(circle at 65% 65%, #000 20%, transparent 70%); pointer-events: none; transition: opacity .3s; }
.bento .card:hover .card__art { opacity: 1; }
@media (min-width: 700px) and (max-width: 999.98px) { .bento .card:last-child:nth-child(odd) { grid-column: span 2; } }
@media (min-width: 1000px) { .bento .card--wide { grid-column: span 2; } }

/* ---------- 数据中心节点区 ---------- */
.map-split { display: grid; gap: 40px; align-items: center; }
@media (min-width: 1000px) { .map-split { grid-template-columns: .9fr 1.1fr; gap: 64px; } }
.art--map { width: 100%; }
.city-list { display: grid; border-top: 1px solid var(--border-2); }
.city { position: relative; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 18px 4px; border-bottom: 1px solid var(--border); color: var(--text); transition: background .15s, padding .2s; }
.city:hover { color: var(--text); background: var(--bg-2); padding-left: 10px; }
.city__dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--red); }
.city__name { font-size: 17px; font-weight: 600; margin: 0; color: var(--hi); }
.city__tag { color: var(--muted); font-size: 14px; margin: 0; }
.city .ic { color: var(--muted); transition: transform .2s, color .2s; }
.city:hover .ic { color: var(--hi); transform: translateX(3px); }
.cities { display: grid; gap: 16px; }
@media (min-width: 768px) { .cities { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 768px) { .cities.cities--2 { grid-template-columns: repeat(2, 1fr); } }
.city-card { display: flex; flex-direction: column; gap: 12px; padding: 28px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); color: var(--text); transition: border-color .2s, box-shadow .2s, transform .2s; }
.city-card:hover { border-color: var(--border-2); box-shadow: var(--shadow); color: var(--text); transform: translateY(-2px); }
.city-card h3 { display: flex; align-items: center; gap: 12px; font-size: 20px; margin: 0; }
.city-card .city__tag { margin: 0; }

/* ---------- 打包方案 ---------- */
.bundle { position: relative; display: grid; gap: 36px; padding: 40px 28px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--bg-2); }
.bundle::before { display: none; }
.bundle h2 { font-size: clamp(24px, 2.8vw, 34px); letter-spacing: -.02em; }
.bundle p { color: var(--text-2); margin: 0; }
.flow { position: relative; display: grid; gap: 8px; list-style: none; counter-reset: f; }
.flow::before { content: ""; position: absolute; left: 19px; top: 24px; bottom: 24px; width: 1px; background: var(--border-2); }
.flow li { position: relative; counter-increment: f; display: flex; align-items: center; gap: 16px; padding: 8px 0; font-weight: 600; font-size: 16px; color: var(--hi); }
.flow li::before { content: counter(f, decimal-leading-zero); flex: none; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--bg); border: 1px solid var(--border-2); color: var(--hi); font-family: var(--mono); font-size: 12px; }
@media (min-width: 1000px) { .bundle { grid-template-columns: 1fr 1fr; align-items: center; padding: 64px; } }

/* ---------- 列表 ---------- */
.checklist { list-style: none; display: grid; gap: 10px; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-2); font-size: 15px; }
.checklist .ic { flex: none; width: 18px; height: 18px; margin-top: 4px; color: var(--red-hi); }

/* ---------- 步骤 ---------- */
.steps { position: relative; list-style: none; display: grid; gap: 20px; counter-reset: s; }
@media (min-width: 900px) {
  .steps { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 24px; }
  .steps::before { content: ""; position: absolute; left: 0; right: 0; top: 22px; height: 1px; background: var(--border-2); }
}
.steps__item { position: relative; display: flex; gap: 16px; padding: 4px 0; }
@media (min-width: 900px) { .steps__item { flex-direction: column; align-items: flex-start; gap: 20px; } }
.steps__num { flex: none; position: relative; z-index: 1; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--bg); border: 1px solid var(--border-2); color: var(--hi); font-family: var(--mono); font-weight: 600; font-size: 13px; }
.section--alt .steps__num { background: var(--bg-2); }
.steps__item h3 { font-size: 17px; margin-bottom: 4px; }
.steps__item p { margin: 0; color: var(--text-2); font-size: 14px; line-height: 1.65; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { padding: 14px 20px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
thead th { background: var(--bg-2); font-size: 13px; color: var(--muted); font-weight: 600; letter-spacing: .02em; white-space: nowrap; }
tbody tr:hover { background: var(--bg-2); }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
tbody th { font-weight: 600; color: var(--hi); white-space: nowrap; }
td { color: var(--text-2); }
.table-note { font-size: 14px; color: var(--muted); margin: 14px 0 0; }

.kv { display: grid; margin: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--card); }
@media (min-width: 768px) { .kv--2 { grid-template-columns: 1fr 1fr; } .kv--2 .kv__row:nth-child(odd) { border-right: 1px solid var(--border); } }
.kv__row { display: grid; grid-template-columns: 7.5em 1fr; border-bottom: 1px solid var(--border); }
.kv__row:last-child { border-bottom: 0; }
.kv dt { padding: 14px 20px; color: var(--muted); font-weight: 500; font-size: 14px; background: var(--bg-2); }
.kv dd { margin: 0; padding: 14px 20px; font-size: 15px; color: var(--text); }

/* ---------- 分栏 ---------- */
.split { display: grid; gap: 32px; }
@media (min-width: 1000px) { .split { grid-template-columns: 1fr 1fr; gap: 64px; } .split--wide { grid-template-columns: 1.3fr 1fr; } .split--center { align-items: center; } }
.lead-text { font-size: 18px; color: var(--text-2); line-height: 1.8; }

/* 架构层 */
.layers { display: grid; gap: 8px; }
.layers__item { position: relative; display: grid; grid-template-columns: 7.5em 1fr auto; align-items: center; gap: 20px; padding: 18px 24px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); color: var(--text); }
.layers__item strong { font-size: 16px; color: var(--hi); }
.layers__item span { color: var(--text-2); font-size: 15px; }
a.layers__item { transition: border-color .2s, box-shadow .2s; }
a.layers__item:hover { color: var(--text); border-color: var(--border-2); box-shadow: var(--shadow); }
a.layers__item .ic { color: var(--muted); }
a.layers__item:hover .ic { color: var(--hi); }
.layers__item.is-current { border-color: var(--hi); }
.layers:not(:has(.is-current)) .layers__item:last-child { background: var(--bg-2); }
.layers__tag { font-style: normal; font-size: 12px; color: var(--hi); border: 1px solid var(--border-2); border-radius: 999px; padding: 1px 8px; }
@media (max-width: 560px) { .layers__item { grid-template-columns: 1fr auto; } .layers__item span { grid-column: 1 / -1; grid-row: 2; } }

/* FAQ：手风琴列表，只用分割线 */
.faq { display: grid; max-width: 880px; border-top: 1px solid var(--border-2); }
.faq__item { border-bottom: 1px solid var(--border); }
.faq__item summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 4px; font-weight: 600; font-size: 16px; cursor: pointer; list-style: none; color: var(--hi); }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--red-hi); }
.faq__item summary .ic { color: var(--muted); transition: transform .25s; flex: none; }
.faq__item[open] summary .ic { transform: rotate(180deg); }
.faq__a { padding: 0 4px 22px; color: var(--text-2); max-width: 64em; }
.faq__a p { margin: 0; }

/* 相关链接 */
.related { display: grid; gap: 12px; }
@media (min-width: 640px) { .related { grid-template-columns: repeat(3, 1fr); } }
.related__item { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; border: 1px solid var(--border); border-radius: var(--radius); color: var(--hi); font-weight: 600; background: var(--card); transition: border-color .2s, box-shadow .2s; }
.related__item:hover { border-color: var(--border-2); color: var(--hi); box-shadow: var(--shadow); }
.related__item .ic { color: var(--muted); transition: transform .2s, color .2s; }
.related__item:hover .ic { transform: translateX(4px); color: var(--red-hi); }

/* ---------- 转化区与表单 ---------- */
.cta-band { position: relative; padding: 80px 0; background: var(--bg-2); border-top: 1px solid var(--border); }
.cta-band::before { display: none; }
.cta-band__inner { display: grid; gap: 40px; align-items: start; }
.cta-band h2 { font-size: clamp(28px, 3.2vw, 40px); letter-spacing: -.02em; }
.cta-band p { color: var(--text-2); font-size: 17px; }
.cta-band__list { list-style: none; display: grid; gap: 14px; margin-top: 28px; }
.cta-band__list li { display: flex; align-items: center; gap: 12px; color: var(--text-2); }
.cta-band__list a { color: var(--hi); font-weight: 600; font-size: 20px; font-variant-numeric: tabular-nums; }
.cta-band__list .ic { width: 40px; height: 40px; padding: 10px; border-radius: var(--radius-sm); color: var(--hi); background: var(--bg-3); }
@media (min-width: 1000px) { .cta-band { padding: 112px 0; } .cta-band__inner { grid-template-columns: 1fr 1.1fr; gap: 80px; } }

.inquiry { position: relative; padding: 32px; border-radius: var(--radius-lg); background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow); }
.inquiry::before { display: none; }
.inquiry__title { font-size: 20px; margin-bottom: 20px; }
.inquiry__grid { display: grid; gap: 16px; }
@media (min-width: 640px) { .inquiry__grid { grid-template-columns: 1fr 1fr; } .field--full { grid-column: 1 / -1; } }
.field { display: grid; gap: 8px; font-size: 13px; font-weight: 600; color: var(--text-2); }
.field em { color: var(--err); font-style: normal; }
.field input, .field select, .field textarea { width: 100%; font: inherit; font-weight: 400; font-size: 15px; color: var(--text); padding: 11px 14px; border: 1px solid var(--border-2); border-radius: var(--radius-sm); background: var(--bg); transition: border-color .15s, box-shadow .15s; }
.field input::placeholder, .field textarea::placeholder { color: var(--placeholder); }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.field select option { background: var(--bg); color: var(--text); }
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--hi); box-shadow: 0 0 0 3px rgba(11, 13, 18, .08); }
.field.is-invalid input, .field.is-invalid select { border-color: var(--err); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.agree { display: flex; gap: 8px; align-items: flex-start; margin: 16px 0; font-size: 13px; color: var(--muted); }
.agree input { margin-top: 4px; accent-color: var(--red); }
.inquiry__msg { margin: 12px 0 0; font-size: 14px; min-height: 1em; }
.inquiry__msg.is-ok { color: var(--ok); }
.inquiry__msg.is-err { color: var(--err); }
.inquiry__alt { margin: 4px 0 0; font-size: 13px; color: var(--muted); }

/* ---------- 文章 ---------- */
.article-list { display: grid; gap: 16px; }
.article-card { position: relative; display: block; padding: 28px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); color: var(--text); transition: border-color .2s, box-shadow .2s, transform .2s; }
.article-card:hover { border-color: var(--border-2); color: var(--text); box-shadow: var(--shadow); transform: translateY(-2px); }
.article-card h2, .article-card h3 { font-size: 18px; margin-bottom: 8px; line-height: 1.4; }
.article-card:hover h3, .article-card:hover h2 { color: var(--red-hi); }
.article-card p { color: var(--text-2); margin: 0 0 14px; font-size: 15px; }
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; font-size: 13px; color: var(--muted); }
.tag { display: inline-block; padding: 2px 10px; border-radius: 999px; background: var(--bg-2); border: 1px solid var(--border); color: var(--text-2); font-size: 12px; }
.article-head { padding: 104px 0 16px; max-width: 780px; }
.article-head h1 { font-size: clamp(28px, 3.4vw, 42px); letter-spacing: -.02em; }
.prose { max-width: 780px; font-size: 17px; line-height: 1.9; color: var(--prose); padding-bottom: 40px; }
.prose h2 { font-size: 26px; margin: 1.8em 0 .6em; }
.prose h3 { font-size: 20px; margin: 1.5em 0 .5em; }
.prose strong { color: var(--hi); }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 1.2em; }
.prose li { margin: .35em 0; }
.prose li::marker { color: var(--muted); }
.prose blockquote { margin: 1.4em 0; padding: 6px 22px; border-left: 2px solid var(--red); color: var(--text-2); }
.prose code { background: var(--bg-3); padding: 2px 6px; border-radius: 4px; font-size: .88em; font-family: var(--mono); }
.prose .table-wrap { margin: 1.4em 0; }
.prose a { text-decoration: underline; text-decoration-color: rgba(192, 39, 45, .4); text-underline-offset: 3px; }

/* ---------- 空状态与提示 ---------- */
.empty { position: relative; padding: 56px 24px; text-align: center; border: 1px dashed var(--border-2); border-radius: var(--radius); color: var(--text-2); background: var(--bg-2); }
.empty h2 { font-size: 20px; }
.empty .art { width: 220px; margin: 0 auto 8px; opacity: .8; }
.note { padding: 18px 22px; border-radius: var(--radius-sm); background: var(--bg-2); border-left: 2px solid var(--red); color: var(--text-2); font-size: 15px; }
.note a { color: var(--hi); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--border-2); }
.note a:hover { color: var(--red-hi); }

/* 时间线 */
.timeline { list-style: none; display: grid; border-left: 1px solid var(--border-2); margin-left: 8px; }
.timeline li { position: relative; padding: 0 0 28px 28px; color: var(--text-2); }
.timeline li::before { content: ""; position: absolute; left: -5px; top: 9px; width: 9px; height: 9px; border-radius: 50%; background: var(--red); }
.timeline strong { display: block; color: var(--hi); margin-bottom: 2px; }
.timeline .tl-year { display: block; font-size: 13px; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; letter-spacing: .02em; margin-bottom: 2px; }
.tl-stages { display: grid; gap: 8px; }
.tl-stage h3 { font-size: 16px; font-weight: 600; color: var(--hi); margin: 0 0 18px; }
.tl-stage h3 span { margin-left: 8px; font-size: 13px; font-weight: 400; color: var(--muted); font-variant-numeric: tabular-nums; }
.tl-stage .timeline li:last-child { padding-bottom: 24px; }
@media (min-width: 900px) { .tl-stages { grid-template-columns: repeat(2, 1fr); column-gap: 48px; } }

/* 资质 */
.creds { display: grid; gap: 12px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 900px) { .creds { grid-template-columns: repeat(4, 1fr); } }
.cred { display: flex; align-items: center; gap: 14px; padding: 20px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); font-size: 14px; color: var(--text); }
.cred .ic { width: 38px; height: 38px; padding: 8px; border-radius: var(--radius-sm); color: var(--hi); background: var(--bg-3); }

/* ---------- 页脚 ---------- */
.footer { position: relative; background: var(--bg-2); color: var(--muted); font-size: 14px; padding-bottom: 70px; border-top: 1px solid var(--border); }
.footer__grid { display: grid; gap: 36px; padding: 64px 20px 44px; grid-template-columns: repeat(2, 1fr); }
.footer__brand { grid-column: 1 / -1; }
.footer__brand p { margin: 18px 0; color: var(--text-2); max-width: 28em; text-wrap: balance; }
.footer__brand .logo + .footer__contact { margin-top: 24px; }
.footer h3 { font-size: 14px; font-weight: 600; margin-bottom: 18px; letter-spacing: .02em; }
.footer h3 a { color: var(--hi); }
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer a { color: var(--muted); }
.footer a:hover { color: var(--hi); }
/* 栏目分组：与大菜单的分组标题同款（小字、灰、加字距） */
.footer__group + .footer__group { margin-top: 22px; }
.footer__sub { margin: 0 0 10px; font-size: 12px; font-weight: 600; letter-spacing: .06em; color: var(--muted); opacity: .8; }
.footer__group li { line-height: 1.45; text-wrap: balance; word-break: keep-all; overflow-wrap: anywhere; }
.footer__group a { color: var(--text-2); }
.footer__group a:hover { color: var(--red-hi); }
.footer__col--wide { grid-column: 1 / -1; }
.footer__stacks { display: grid; grid-template-columns: 1fr 1fr; column-gap: 28px; row-gap: 22px; }
.footer__policy { display: flex; gap: 20px; }
@media (max-width: 767px) { .footer__col--wide { order: 1; } } /* 手机两列：宽栏放最后，其余栏两两成行 */
.footer__contact li { display: flex; align-items: center; gap: 8px; color: var(--text-2); }
.footer__contact .ic { color: var(--muted); }
.footer__contact .footer__addr { align-items: flex-start; font-size: 13px; line-height: 1.6; }
.footer__contact .footer__addr .ic { margin-top: 3px; flex: none; }
/* 办公地址（联系页） */
.offices { list-style: none; margin: 0; padding: 0; display: grid; border-top: 1px solid var(--border-2); }
.office { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--border); }
.office p { margin: 0; }
.office__city { font-size: 17px; font-weight: 600; color: var(--hi); }
.office__addr { color: var(--text-2); font-size: 14px; margin-top: 2px !important; }
.office__map { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; white-space: nowrap; }
.footer__legal { border-top: 1px solid var(--border); padding: 20px 0; font-size: 13px; }
.footer__legal .container { display: flex; flex-wrap: wrap; gap: 8px 20px; }
@media (min-width: 768px) { .footer__grid { padding: 80px 32px 56px; grid-template-columns: repeat(3, 1fr); } .footer__col--wide { grid-column: span 2; } }
@media (min-width: 1100px) { .footer { padding-bottom: 0; } .footer__grid { grid-template-columns: 2.2fr repeat(6, 1fr); column-gap: 28px; } .footer__brand { grid-column: auto; } .footer__policy { margin-left: auto; } }

/* ---------- 悬浮条与移动底栏 ---------- */
.float { position: fixed; right: 20px; bottom: 96px; z-index: 40; display: none; flex-direction: column; gap: 2px; padding: 4px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow); }
.float__btn { position: relative; display: flex; flex-direction: column; align-items: center; gap: 3px; width: 60px; padding: 10px 0; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--text-2); font-size: 12px; transition: .15s; }
.float__btn:hover { background: var(--bg-2); color: var(--hi); }
.float__pop { position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(4px); white-space: nowrap; background: var(--card); border: 1px solid var(--border); color: var(--hi); font-style: normal; font-size: 15px; font-weight: 600; padding: 12px 16px; border-radius: var(--radius-sm); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transition: .15s; }
.float__pop--qr { padding: 10px; }
.float__btn:hover .float__pop, .float__btn:focus-visible .float__pop { opacity: 1; visibility: visible; transform: translateY(-50%); }
.float__top { display: none; border-top: 1px solid var(--border); border-radius: 0 0 var(--radius-sm) var(--radius-sm); }
.float__top.is-shown { display: flex; }
@media (min-width: 1100px) { .float { display: flex; } }

.mbar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; display: grid; grid-template-columns: 1fr 1.4fr; gap: 8px; padding: 8px 12px calc(8px + env(safe-area-inset-bottom)); background: var(--bg); border-top: 1px solid var(--border); }
.mbar a { display: flex; align-items: center; justify-content: center; gap: 6px; height: 44px; border-radius: var(--radius-sm); font-weight: 600; color: var(--hi); border: 1px solid var(--border-2); }
.mbar__primary { background: var(--red); color: #fff !important; border: 0 !important; }
@media (min-width: 1100px) { .mbar { display: none; } }

/* ---------- 滚动动效（克制） ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .6s cubic-bezier(.2, .8, .2, 1), transform .6s cubic-bezier(.2, .8, .2, 1); transition-delay: var(--rd, 0s); }
.js [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .stk-layer { opacity: 1; transform: none; }
}

/* ---------- 主题切换：按当前主题显示对应的 Logo / 图标 ---------- */
.for-dark { display: none !important; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .for-dark { display: block !important; }
  :root:not([data-theme="light"]) .for-light { display: none !important; }
}
:root[data-theme="dark"] .for-dark { display: block !important; }
:root[data-theme="dark"] .for-light { display: none !important; }
.theme-btn .ic { display: block; }

/* ---------- 算力租用页 ---------- */
.kpis { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 24px; }
.kpis__item { display: grid; gap: 4px; padding-top: 14px; border-top: 1px solid var(--border-2); }
.kpis__item strong { font-size: 22px; font-weight: 600; line-height: 1.2; color: var(--hi); letter-spacing: -.01em; }
.kpis__item span { color: var(--muted); font-size: 13px; }
@media (min-width: 1200px) { .kpis { grid-template-columns: repeat(4, 1fr); } }
.subnav { position: relative; border-bottom: 1px solid var(--border); background: var(--bg); }
.subnav .container { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding-top: 8px; padding-bottom: 8px; }
.subnav .container::-webkit-scrollbar { display: none; }
.subnav a { flex: none; padding: 6px 12px; border-radius: var(--radius-sm); color: var(--text-2); font-size: 14px; font-weight: 500; white-space: nowrap; transition: background .15s, color .15s; }
.subnav a:hover { color: var(--hi); background: var(--bg-2); }
.sku .checklist { margin: 18px 0 0; gap: 8px; }
.sku .checklist li { font-size: 14px; }
.sku__badge { align-self: flex-start; margin-bottom: 14px; font-size: 12px; font-weight: 600; letter-spacing: .04em; color: var(--text-2); background: var(--bg-2); border: 1px solid var(--border); padding: 2px 10px; border-radius: 999px; }
.sku__foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: auto; padding-top: 18px; border-top: 1px solid var(--border); }
.sku > .checklist { margin-bottom: 22px; }
.sku__price { font-weight: 600; color: var(--hi); }
.sku__price small { font-weight: 400; color: var(--muted); font-size: 13px; }
.sku__cta { display: inline-flex; align-items: center; gap: 6px; color: var(--hi); font-size: 14px; font-weight: 600; white-space: nowrap; }
.sku__cta .ic { transition: transform .2s; }
.sku__cta:hover { color: var(--red-hi); }
.sku__cta:hover .ic { transform: translateX(4px); }

/* ---------- 英文版与语言切换（2026-10-10） ---------- */
.lang-switch { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; padding: 0; border-radius: var(--radius-sm); color: var(--text); }
.lang-switch:hover { background: var(--bg-2); color: var(--hi); }
.lang-switch--drawer { align-self: flex-start; margin-bottom: 4px; }
.lang-switch--drawer:hover { background: var(--bg-2); }
html[lang="en"] { --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, "PingFang SC", "Noto Sans SC", sans-serif; }
html[lang="en"] body { line-height: 1.6; }
html[lang="en"] h1, html[lang="en"] h2, html[lang="en"] h3 { letter-spacing: -.02em; overflow-wrap: break-word; }
html[lang="en"] .nav__link, html[lang="en"] .btn, html[lang="en"] .header__phone { white-space: nowrap; }
html[lang="en"] .float__btn { width: 70px; font-size: 11px; white-space: nowrap; }
.cred { min-width: 0; } .cred span { min-width: 0; overflow-wrap: break-word; }
@media (max-width: 560px) { html[lang="en"] .creds { grid-template-columns: 1fr; } }

/* 在线客服挂件避开移动端底栏，避免挡住「获取报价」 */
@media (max-width: 1099px) {
  #aiKefuDockBtn { bottom: calc(72px + env(safe-area-inset-bottom)); }
}