/* =========================================================
   苏州鑫鸿溢网络科技 — 企业官网样式表
   设计基调：深蓝科技风（参考深信服 sales-kit 风格）
   深海军蓝首屏 · 白底内容区 · 青绿编号徽章 · 蓝色主按钮
   ========================================================= */

/* ---------- 1. Design Tokens ---------- */
:root {
  --ink: #0D1B2E;
  --ink-2: #35485E;
  --muted: #67788E;
  --brand: #1B5FD0;
  --brand-bright: #2F7BEB;
  --brand-deep: #0A2C66;
  --brand-soft: #EAF1FC;
  --accent: #0FA37F;
  --accent-soft: #E3F6EF;
  --navy: #071630;
  --navy-2: #0B2246;

  --bg: #FFFFFF;
  --surface: #F5F8FC;
  --surface-2: #ECF2F9;
  --line: #E3EAF2;
  --line-strong: #CFDCEA;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 10px rgba(10, 30, 66, .05);
  --shadow: 0 12px 34px rgba(10, 30, 66, .08);
  --shadow-lg: 0 26px 60px rgba(10, 30, 66, .14);

  --maxw: 1200px;
  --nav-h: 74px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system,
          BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.28; letter-spacing: -.01em; font-weight: 700; }
p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brand-bright); outline-offset: 3px; border-radius: 4px; }

/* ---------- 3. Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section--tint { background: var(--surface); }
/* 紧凑版区块：压缩上下留白与卡片尺寸，降低空间占用 */
.section--tight { padding: 56px 0; }
.section--tight .section-head { margin-bottom: 28px; }
.section--tight .section-head .lead { font-size: 15.5px; }
.section--tight .grid-2 { gap: 16px; }
.section--tight .biz-card { padding: 18px 18px 16px; }
.section--tight .biz-card__ico { width: 36px; height: 36px; border-radius: 10px; margin-bottom: 10px; }
.section--tight .biz-card__ico svg { width: 18px; height: 18px; }
.section--tight .biz-card h3 { font-size: 16.5px; margin-bottom: 6px; }
.section--tight .biz-card p { font-size: 13.5px; line-height: 1.6; margin-bottom: 10px; }
.section--tight .tags { gap: 6px; margin-bottom: 12px; }
.section--tight .tag { font-size: 11.5px; padding: 3px 8px; }
.section--tight .biz-card__foot { padding-top: 12px; }
.section--tight .link-arrow { font-size: 13.5px; }
/* 首页四区块：编号在左、标题与描述在右，横向紧凑排布并压缩留白 */
.sec-compact { padding: 52px 0; }
.sec-compact .section-head {
  max-width: none;
  margin-bottom: 28px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.sec-compact .sec-no { min-width: 40px; height: 40px; font-size: 15px; border-radius: 10px; margin-bottom: 0; flex: none; }
.sec-compact .section-head__txt { flex: 1; }
.sec-compact .h2 { font-size: 23px; letter-spacing: -.01em; margin-bottom: 4px; }
.sec-compact .lead { font-size: 15px; line-height: 1.65; }
@media (max-width: 640px) {
  .sec-compact .section-head { flex-direction: column; gap: 10px; }
  .sec-compact .sec-no { min-width: 36px; height: 36px; }
}
/* 四卡平铺一行 */
.biz-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.biz-row .biz-card__foot { flex-wrap: wrap; gap: 8px 12px; }
.narrow { max-width: 780px; }

/* ---------- 4. Typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .16em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--accent); display: inline-block; }
.h1 { font-size: clamp(32px, 4.6vw, 56px); font-weight: 700; letter-spacing: -.02em; }
.h2 { font-size: clamp(26px, 3.2vw, 40px); font-weight: 700; letter-spacing: -.02em; }
.h3 { font-size: 20px; font-weight: 700; }
.lead { font-size: clamp(16px, 1.4vw, 18.5px); color: var(--muted); line-height: 1.85; }
.section-head { max-width: 740px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.text-accent { color: var(--accent); }

/* 区块编号（参考站风格：01 / 一、二、三） */
.sec-no {
  display: inline-grid; place-items: center;
  min-width: 44px; height: 44px; padding: 0 10px;
  border-radius: 12px; background: var(--accent-soft);
  color: var(--accent); font-size: 17px; font-weight: 700;
  margin-bottom: 16px;
}

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 30px; border-radius: 10px;
  font-size: 15px; font-weight: 600; letter-spacing: .01em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), background .25s var(--ease),
              color .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-bright) 100%);
  color: #fff; box-shadow: 0 10px 26px rgba(27, 95, 208, .32);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(27, 95, 208, .4); }
.btn--ghost { border-color: var(--line-strong); color: var(--ink); background: #fff; }
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }
.btn--light { background: #fff; color: var(--brand-deep); }
.btn--light:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0, 0, 0, .25); }
.btn--outline-light { border-color: rgba(255, 255, 255, .4); color: #fff; background: rgba(255, 255, 255, .04); }
.btn--outline-light:hover { background: rgba(255, 255, 255, .12); border-color: #fff; transform: translateY(-2px); }
.btn--sm { padding: 10px 20px; font-size: 14px; }
.link-arrow { display: inline-flex; align-items: center; gap: 7px; font-size: 15px; font-weight: 600; color: var(--brand); }
.link-arrow svg { width: 15px; height: 15px; transition: transform .25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- 6. Header / Nav ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.header.is-stuck { border-bottom-color: var(--line); box-shadow: 0 4px 24px rgba(10, 30, 66, .06); }
.nav { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }
.logo { display: flex; align-items: center; gap: 0; }
.logo__img { display: block; height: 64px; width: auto; }
.logo__text { display: flex; flex-direction: column; justify-content: center; gap: 2px; padding-left: 14px; margin-left: 14px; border-left: 1px solid var(--line); }
.logo__text strong { font-size: 22px; font-weight: 800; color: var(--brand); letter-spacing: .06em; line-height: 1.1; }
.logo__text small { font-size: 13px; font-weight: 500; color: #4A6FB5; letter-spacing: .14em; line-height: 1; }
@media (max-width: 720px) {
  .logo { flex-shrink: 0; }
  .logo__text small { display: none; }
  .logo__text strong { font-size: 16px; white-space: nowrap; }
  .logo__img { height: 48px; }
  .logo__text { padding-left: 10px; margin-left: 10px; }
}
@media (max-width: 419px) {
  .nav__right .btn { display: none; }
}
.footer__logo { display: inline-block; background: #fff; padding: 12px 18px; border: 2.5px solid var(--brand); border-radius: 14px; box-shadow: 0 4px 18px rgba(27, 95, 208, .35); }
.footer__logo .logo__img { height: 88px; opacity: 1; }
.footer__logo .logo__img--light { filter: none; }
.footer__qr { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-top: 4px; }
.footer__qr img { display: block; width: 96px; height: 96px; border-radius: 8px; background: #fff; padding: 5px; }
.footer__qr span { font-size: 12.5px; opacity: .75; letter-spacing: .05em; }
img.wechat-qr-card { display: block; width: 108px; height: 108px; border-radius: 10px; flex: none; align-self: center; }
.logo__mark {
  width: 42px; height: 42px; border-radius: 11px; flex: none;
  background: linear-gradient(145deg, var(--brand-deep) 0%, var(--brand-bright) 100%);
  display: grid; place-items: center; color: #fff;
  font-weight: 700; font-size: 16px; letter-spacing: .02em;
  box-shadow: 0 6px 16px rgba(27, 95, 208, .3);
}
.logo__text { display: flex; flex-direction: column; line-height: 1.25; }
.logo__cn { font-size: 16.5px; font-weight: 700; letter-spacing: .02em; }
.logo__en { font-size: 10px; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; }

.nav__menu { display: flex; align-items: center; gap: 4px; }
.nav__link {
  position: relative; padding: 9px 15px; border-radius: 8px;
  font-size: 15px; font-weight: 500; color: var(--ink-2);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav__link:hover { color: var(--brand); background: var(--brand-soft); }
.nav__link.is-active { color: var(--brand); font-weight: 600; }

/* 导航下拉菜单（解决方案） */
.nav__drop { position: relative; }
.nav__drop-menu {
  position: absolute; top: 100%; left: 15px;
  min-width: 232px; padding: 8px; background: #fff;
  border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 18px 44px rgba(7, 22, 48, .16);
  opacity: 0; visibility: hidden;
  transition: opacity .18s ease, visibility .18s;
  z-index: 80;
}
.nav__drop:hover .nav__drop-menu,
.nav__drop:focus-within .nav__drop-menu { opacity: 1; visibility: visible; }
.nav__drop:hover .caret { transform: rotate(180deg); }
.nav__drop-menu a { display: block; padding: 10px 14px; border-radius: 8px; font-size: 14.5px; color: var(--ink); white-space: nowrap; }
.nav__drop-menu a:hover { background: var(--accent-soft); color: var(--accent); }
.mm-sub { padding-left: 26px !important; font-size: 14.5px !important; font-weight: 400 !important; color: var(--muted) !important; border-bottom: none !important; }
.nav__link.is-active::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 2px;
  height: 2px; background: var(--accent); border-radius: 2px;
}
.nav__right { display: flex; align-items: center; gap: 16px; }
.nav__phone { display: inline-flex; align-items: center; gap: 7px; font-size: 14.5px; font-weight: 600; color: var(--muted); }
.nav__phone svg { width: 15px; height: 15px; color: var(--brand); }
.nav__phone b { color: var(--brand); font-weight: 700; font-size: 15.5px; }

.burger {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  background: #fff; border-radius: 10px; cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.burger span { display: block; width: 18px; height: 1.6px; background: var(--ink); border-radius: 2px; transition: .3s var(--ease); }
.burger.is-open span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

.mobile-menu {
  display: none; position: fixed; inset: var(--nav-h) 0 0 0; z-index: 99;
  background: #fff; padding: 24px; overflow-y: auto;
}
.mobile-menu.is-open { display: block; }
.mobile-menu a { display: block; padding: 16px 4px; font-size: 18px; font-weight: 500; border-bottom: 1px solid var(--line); }
.mobile-menu .btn { width: 100%; margin-top: 24px; }

/* ---------- 7. Hero（深色科技风） ---------- */
.hero {
  position: relative; padding: 96px 0 110px; overflow: hidden;
  background:
    linear-gradient(90deg, #050F24 0%, rgba(7, 22, 48, .96) 30%, rgba(7, 22, 48, .58) 52%, rgba(7, 22, 48, .04) 74%, rgba(7, 22, 48, .16) 100%),
    url("img/hero-synology.webp") 62% center / cover no-repeat,
    linear-gradient(148deg, #050F24 0%, var(--navy) 46%, var(--navy-2) 100%);
  color: #fff;
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  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);
  background-size: 72px 72px;
  mask-image: radial-gradient(74% 64% at 50% 34%, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(74% 64% at 50% 34%, #000 0%, transparent 80%);
}
.hero .container { position: relative; z-index: 2; }
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 9px; margin-bottom: 22px;
  padding: 7px 16px 7px 12px; border-radius: 999px;
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16);
  font-size: 12.5px; font-weight: 600; letter-spacing: .14em; color: #BBD2F5;
}
.hero__badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none; box-shadow: 0 0 0 4px rgba(15, 163, 127, .22); }
.hero h1 { margin-bottom: 22px; }
.hero h1 em { font-style: normal; color: #6FB4FF; position: relative; white-space: nowrap; }
.hero h1 em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 9px;
  background: rgba(111, 180, 255, .18); z-index: -1; border-radius: 3px;
}
.hero__desc { max-width: 540px; margin-bottom: 34px; color: rgba(255, 255, 255, .78); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }
.hero__points { display: flex; flex-wrap: wrap; gap: 12px 28px; }
.hero__points li { display: flex; align-items: center; gap: 9px; font-size: 14.5px; color: rgba(255, 255, 255, .82); }
.hero__points svg { width: 17px; height: 17px; color: #35D6A8; flex: none; }

/* Hero 科技面板 */
.hero__visual { position: relative; display: grid; place-items: center; }
.tech-panel {
  position: relative; width: min(100%, 480px); aspect-ratio: 10 / 8.6;
  border-radius: 20px; padding: 30px;
  background: linear-gradient(160deg, rgba(20, 48, 100, .55), rgba(9, 24, 54, .85));
  border: 1px solid rgba(120, 170, 255, .22);
  box-shadow: 0 34px 80px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .08);
  display: grid; grid-template-rows: auto 1fr auto; gap: 18px;
}
.tech-panel__title { text-align: center; font-size: 17px; font-weight: 700; letter-spacing: .06em; color: #EAF2FF; }
.tech-panel__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; align-content: center; }
.tech-cell {
  display: flex; align-items: center; gap: 12px; padding: 14px 15px;
  border-radius: 12px; background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(120, 170, 255, .14);
}
.tech-cell svg { width: 22px; height: 22px; color: #4FC9A4; flex: none; }
.tech-cell .t { font-size: 13.5px; font-weight: 600; color: #fff; line-height: 1.35; }
.tech-cell .d { font-size: 11.5px; color: rgba(255, 255, 255, .55); line-height: 1.4; }
.tech-panel__stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; border-top: 1px solid rgba(120, 170, 255, .16); padding-top: 16px; }
.tech-panel__stats .n { font-size: 21px; font-weight: 700; color: #6FB4FF; text-align: center; }
.tech-panel__stats .l { font-size: 11.5px; color: rgba(255, 255, 255, .6); text-align: center; margin-top: 2px; }

/* ---------- 8. Stats ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
}
.stat { background: #fff; padding: 34px 26px; text-align: center; }
.stat__n { font-size: clamp(28px, 3.2vw, 40px); font-weight: 700; color: var(--brand); letter-spacing: -.02em; line-height: 1.15; font-variant-numeric: tabular-nums; }
.stat__n span { font-size: .58em; font-weight: 600; margin-left: 2px; }
.stat__l { font-size: 14px; color: var(--muted); margin-top: 6px; }
.stat__src { font-size: 11.5px; color: #9AAABD; margin-top: 4px; }

/* ---------- 9. Cards: business ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

.biz-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 34px 30px 30px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  overflow: hidden; display: flex; flex-direction: column;
}
.biz-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease);
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.biz-card:hover::before { transform: scaleX(1); }
.biz-card__ico {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); margin-bottom: 20px;
}
.biz-card__ico svg { width: 25px; height: 25px; }
.biz-card h3 { margin-bottom: 12px; }
.biz-card p { color: var(--muted); font-size: 15px; margin-bottom: 18px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tag { font-size: 12.5px; padding: 5px 11px; border-radius: 6px; background: var(--surface); color: var(--ink-2); border: 1px solid var(--line); }
.biz-card__foot { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }

/* ---------- 10. Advantage ---------- */
.adv {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden;
}
.adv__item { background: #fff; padding: 32px 28px; transition: background .3s var(--ease); }
.adv__item:hover { background: var(--surface); }
.adv__n { font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: .1em; margin-bottom: 14px; }
.adv__item h3 { font-size: 17.5px; margin-bottom: 10px; }
.adv__item p { font-size: 14.5px; color: var(--muted); }

/* ---------- 11. Process ---------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.process__step { position: relative; padding: 8px 28px 0 0; }
.process__step:not(:last-child)::after {
  content: ""; position: absolute; top: 26px; right: 14px; width: 28px; height: 1px; background: var(--line-strong);
}
.process__n {
  width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center;
  background: #fff; border: 1px solid var(--line-strong); color: var(--brand);
  font-size: 17px; font-weight: 700; margin-bottom: 20px;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.process__step:hover .process__n { background: var(--brand); color: #fff; border-color: var(--brand); }
.process__step h3 { font-size: 17.5px; margin-bottom: 9px; }
.process__step p { font-size: 14.5px; color: var(--muted); }

/* ---------- 12. Quote callout（参考站风格金句） ---------- */
.quote {
  display: flex; gap: 20px; align-items: flex-start;
  background: #fff; border: 1.5px solid rgba(15, 163, 127, .35);
  border-radius: 999px; padding: 26px 40px; max-width: 960px; margin: 48px auto 0;
}
.quote svg { width: 30px; height: 30px; color: var(--accent); flex: none; margin-top: 4px; }
.quote p { font-size: clamp(15.5px, 1.5vw, 18px); font-weight: 600; color: var(--brand-deep); line-height: 1.8; }

/* ---------- 13. Video / demo cards ---------- */
.video-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.video-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.video-card__frame { position: relative; background: #0A1428; aspect-ratio: 16 / 9; }
.video-card__frame video, .video-card__frame img { width: 100%; height: 100%; object-fit: cover; }
.video-card__body { padding: 20px 24px 24px; }
.video-card__body h3 { font-size: 17px; margin-bottom: 8px; }
.video-card__body p { font-size: 14px; color: var(--muted); }
.video-note { font-size: 12.5px; color: #9AAABD; margin-top: 10px; }

/* ---------- 14. CTA band ---------- */
.cta-band {
  position: relative; overflow: hidden; padding: 78px 0; color: #fff;
  background:
    radial-gradient(60% 130% at 86% 50%, rgba(15, 163, 127, .3) 0%, rgba(15, 163, 127, 0) 60%),
    linear-gradient(140deg, var(--navy) 0%, var(--navy-2) 100%);
}
.cta-band__inner { position: relative; display: grid; grid-template-columns: 1.3fr auto; gap: 40px; align-items: center; }
.cta-band h2 { margin-bottom: 14px; }
.cta-band .lead { color: rgba(255, 255, 255, .75); }
.cta-band__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-band__phone { display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; font-size: 15px; color: rgba(255, 255, 255, .85); }
.cta-band__phone svg { width: 17px; height: 17px; color: #35D6A8; }
.cta-band__phone b { font-size: 21px; color: #fff; letter-spacing: .02em; }

/* ---------- 15. Footer ---------- */
.footer { background: #050D1E; color: rgba(255, 255, 255, .68); padding: 72px 0 0; font-size: 14.5px; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 44px; padding-bottom: 48px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 20px; letter-spacing: .04em; }
.footer li { margin-bottom: 11px; }
.footer a:hover { color: #4FC9A4; }
.footer__logo { margin-bottom: 18px; }
.footer__desc { max-width: 330px; line-height: 1.85; }
.footer__contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer__contact svg { width: 16px; height: 16px; color: #4FC9A4; flex: none; margin-top: 4px; }
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .09); padding: 22px 0 26px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255, 255, 255, .45);
}
.footer__bottom a { color: inherit; }
.footer__bottom a:hover { color: #4FC9A4; }

/* ---------- 16. Inner page hero ---------- */
.page-hero {
  position: relative; padding: 72px 0 60px; overflow: hidden; color: #fff;
  background:
    radial-gradient(56% 120% at 82% 0%, rgba(47, 123, 235, .32) 0%, rgba(47, 123, 235, 0) 62%),
    linear-gradient(148deg, #050F24 0%, var(--navy) 52%, var(--navy-2) 100%);
}
.page-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 80% at 50% 20%, #000 0%, transparent 82%);
  -webkit-mask-image: radial-gradient(70% 80% at 50% 20%, #000 0%, transparent 82%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { margin-bottom: 14px; }
.page-hero .lead { color: rgba(255, 255, 255, .75); max-width: 720px; }
.breadcrumb { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: rgba(255, 255, 255, .55); margin-bottom: 20px; }
.breadcrumb a:hover { color: #6FB4FF; }
.breadcrumb span { opacity: .5; }

/* ---------- 17. Solutions page ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 44px; }
.tab {
  padding: 12px 24px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: #fff; font-size: 14.5px; font-weight: 500; cursor: pointer; color: var(--ink-2);
  transition: all .25s var(--ease);
}
.tab:hover { border-color: var(--brand); color: var(--brand); }
.tab.is-active { background: var(--brand); border-color: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(27, 95, 208, .28); }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeUp .45s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.sol-block { margin-bottom: 72px; }
.sol-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
.sol-head h2 { font-size: clamp(24px, 2.8vw, 33px); }
.sol-head .src { font-size: 13px; color: var(--muted); }
.sol-intro { max-width: 820px; color: var(--muted); margin-bottom: 30px; }

.pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 36px; }
.pain-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 22px; }
.pain-card__n {
  display: inline-grid; place-items: center; width: 34px; height: 34px;
  border-radius: 10px; background: var(--accent-soft); color: var(--accent);
  font-size: 14px; font-weight: 700; margin-bottom: 12px;
}
.pain-card h3 { font-size: 15.5px; margin-bottom: 6px; }
.pain-card p { font-size: 13.5px; color: var(--muted); }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 36px; }
.feat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px 24px; }
.feat-card h3 { font-size: 17px; margin-bottom: 10px; }
.feat-card p { font-size: 14px; color: var(--muted); }
.feat-card b { color: var(--brand); }
/* 四卡一行版：卡片更紧凑，四列并排 */
.feature-grid--4 { grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 28px; }
.feature-grid--4 .feat-card { padding: 20px 18px; }
.feature-grid--4 .feat-card h3 { font-size: 16px; margin-bottom: 8px; }
.feature-grid--4 .feat-card p { font-size: 13.5px; line-height: 1.65; }
/* 两卡一行版（FAQ 等） */
.feature-grid--2 { grid-template-columns: repeat(2, 1fr); }

.table-wrap { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
.table-scroll { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 14.5px; }
table.data thead th {
  background: var(--surface-2); text-align: left; padding: 15px 20px;
  font-size: 13px; font-weight: 700; color: var(--ink-2); letter-spacing: .04em;
  border-bottom: 1px solid var(--line); white-space: nowrap;
}
table.data tbody td { padding: 15px 20px; border-bottom: 1px solid var(--line); color: var(--ink-2); vertical-align: top; }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: var(--surface); }
table.data .code { font-weight: 700; color: var(--brand); white-space: nowrap; }
table.data .hlb { font-variant-numeric: tabular-nums; white-space: nowrap; }

.case-box {
  background: var(--brand-soft); border-left: 3px solid var(--brand);
  border-radius: var(--radius-sm); padding: 24px 28px; margin-top: 32px;
}
.case-box h3 { font-size: 16px; margin-bottom: 10px; color: var(--brand-deep); }
.case-box p { font-size: 14.5px; color: var(--ink-2); }
.case-box b { color: var(--brand); }

.note {
  display: flex; gap: 14px; padding: 20px 24px; background: var(--surface);
  border-left: 3px solid var(--accent); border-radius: var(--radius-sm);
  font-size: 14px; color: var(--ink-2); margin-top: 28px;
}
.note b { color: var(--ink); }
.note svg { width: 20px; height: 20px; flex: none; margin-top: 3px; color: var(--accent); }

/* ---------- 17.6 VMware 替代 · 产品配图 ---------- */
.sol-fig { margin: 26px 0 0; }
.sol-fig img { display: block; width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: 0 12px 32px -14px rgba(5, 15, 36, .18); }
.sol-fig figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); text-align: center; }
.sol-fig-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 26px; }
.sol-fig-row figure { margin: 0; }
.sol-fig-row img { display: block; width: 100%; height: 240px; object-fit: cover; border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: 0 12px 32px -14px rgba(5, 15, 36, .18); }
.sol-fig-row figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); text-align: center; }
@media (max-width: 760px) { .sol-fig-row { grid-template-columns: 1fr; } .sol-fig-row img { height: auto; } }

/* ---------- 全站悬浮联系：一键电话 + 加微信 ---------- */
.fc-wrap {
  position: fixed; right: 18px; bottom: 26px; z-index: 980;
  display: flex; flex-direction: column; gap: 12px;
}
.fc-btn {
  position: relative; width: 54px; height: 54px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  border: none; cursor: pointer; text-decoration: none;
  color: #fff; box-shadow: 0 10px 26px rgba(10, 30, 66, .30);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.fc-btn svg { width: 24px; height: 24px; }
.fc-btn:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 16px 34px rgba(10, 30, 66, .38); }
.fc-btn--phone { background: linear-gradient(135deg, var(--brand) 0%, var(--brand-bright) 100%); }
.fc-btn--wx { background: linear-gradient(135deg, #09BB07 0%, #2FC79E 100%); }
.fc-cta {
  align-self: flex-end;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 12px 18px; border: none; cursor: pointer; border-radius: 999px;
  font-size: 14px; font-weight: 700; letter-spacing: .02em; color: #fff;
  background: linear-gradient(100deg, var(--brand) 0%, var(--brand-bright) 55%, var(--accent) 135%);
  box-shadow: 0 12px 30px rgba(27, 95, 208, .38);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.fc-cta svg { width: 16px; height: 16px; }
.fc-cta:hover { transform: translateY(-3px); box-shadow: 0 18px 38px rgba(27, 95, 208, .46); }
.fc-cta:active { transform: translateY(-1px) scale(.98); }
.fc-tip {
  position: absolute; right: 64px; top: 50%; transform: translateY(-50%) translateX(6px);
  background: var(--brand-deep); color: #fff; font-size: 12px; line-height: 1.5;
  padding: 7px 12px; border-radius: 10px; white-space: nowrap; text-align: center;
  opacity: 0; pointer-events: none; transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.fc-tip b { font-size: 13px; letter-spacing: .02em; }
.fc-btn:hover .fc-tip, .fc-btn:focus-visible .fc-tip { opacity: 1; transform: translateY(-50%) translateX(0); }
.fc-tip::after {
  content: ""; position: absolute; right: -5px; top: 50%; transform: translateY(-50%);
  border: 5px solid transparent; border-left-color: var(--brand-deep); border-right: 0;
}
.fc-modal { position: fixed; inset: 0; z-index: 990; display: none; }
.fc-modal.is-open { display: block; }
.fc-modal__mask { position: absolute; inset: 0; background: rgba(10, 30, 66, .58); backdrop-filter: blur(3px); }
.fc-modal__card {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: min(320px, calc(100vw - 40px)); background: #fff; border-radius: 18px;
  padding: 26px 26px 22px; text-align: center;
  box-shadow: 0 40px 90px -30px rgba(10, 30, 66, .55);
  animation: fc-pop .28s var(--ease);
}
@keyframes fc-pop { from { opacity: 0; transform: translate(-50%, -47%) scale(.94); } to { opacity: 1; transform: translate(-50%, -50%) scale(1); } }
.fc-modal__close {
  position: absolute; right: 12px; top: 10px; width: 32px; height: 32px;
  border: none; background: #F1F5FA; color: var(--muted); font-size: 20px; line-height: 1;
  border-radius: 50%; cursor: pointer; transition: background .2s var(--ease), color .2s var(--ease);
}
.fc-modal__close:hover { background: #E3EAF2; color: var(--ink); }
.fc-modal__head { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.fc-modal__head svg { width: 34px; height: 34px; color: #09BB07; }
.fc-modal__head h3 { font-size: 17px; color: var(--brand-deep); margin: 6px 0 0; }
.fc-modal__head p { font-size: 12.5px; color: var(--muted); margin: 0; }
.fc-modal__qr {
  width: 200px; height: 200px; margin: 14px auto 12px; display: block;
  border: 1px solid var(--line); border-radius: 12px; padding: 8px; background: #fff;
}
.fc-modal__wxrow {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--brand-soft); border: 1px dashed #B9CFF0; border-radius: 10px;
  padding: 10px 12px;
}
.fc-modal__wxid { font-size: 15.5px; font-weight: 700; color: var(--brand-deep); letter-spacing: .02em; }
.fc-modal__copy {
  border: none; cursor: pointer; border-radius: 8px; padding: 7px 14px;
  font-size: 13px; font-weight: 600; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-bright));
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.fc-modal__copy:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(27, 95, 208, .35); }
.fc-modal__copy.is-done { background: linear-gradient(135deg, var(--accent), #2FC79E); }
.fc-modal__hint { font-size: 12px; color: #9AAABD; margin: 10px 0 0; }
@media (max-width: 640px) {
  .fc-wrap { right: 12px; bottom: 18px; }
  .fc-btn { width: 48px; height: 48px; }
  .fc-btn svg { width: 22px; height: 22px; }
  .fc-tip { display: none; }
  .fc-cta { padding: 10px 14px; font-size: 13px; gap: 6px; }
  .fc-cta svg { width: 14px; height: 14px; }
}

/* ---------- 17.5 VMware 替代 · 厂商信任板块 ---------- */
.trust-block {
  --tb-grad: linear-gradient(120deg, #1B5FD0 0%, #2F7BEB 42%, #0FA37F 100%);
  position: relative; margin: 38px 0 0; padding: 32px 34px 30px;
  border: 2px solid transparent; border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, #F2F7FF 0%, #FFFFFF 60%) padding-box,
    var(--tb-grad) border-box;
  box-shadow: 0 26px 60px -30px rgba(27, 95, 208, .5), 0 0 0 5px rgba(27, 95, 208, .05);
  overflow: hidden;
}
.trust-block::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px;
  background: var(--tb-grad);
}
.trust-block::after {
  content: ""; position: absolute; right: -30px; bottom: -30px; width: 220px; height: 220px;
  background: radial-gradient(circle at 100% 100%, rgba(15, 163, 127, .16) 0%, rgba(47, 123, 235, .1) 42%, transparent 70%);
  pointer-events: none;
}
.trust-block__tag {
  display: inline-flex; align-items: center; font-size: 11.5px; font-weight: 700; letter-spacing: .08em;
  color: #fff; background: var(--tb-grad);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 14px;
  box-shadow: 0 8px 18px -8px rgba(27, 95, 208, .6);
}
.trust-block__title { font-size: 20px; line-height: 1.45; margin: 0 0 10px; color: var(--brand-deep); }
.trust-block__lead { font-size: 14px; color: var(--muted); line-height: 1.85; margin-bottom: 24px; }

.trust-quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 20px; }
.trust-quote {
  position: relative; overflow: hidden; background: #fff;
  border: 1px solid #DCE6F6; border-top: 3px solid var(--qc, #D64545); border-radius: var(--radius);
  padding: 20px 24px 20px;
  box-shadow: 0 10px 24px -18px rgba(10, 30, 66, .3);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.trust-quote:nth-child(1) { --qc: #D64545; }
.trust-quote:nth-child(2) { --qc: #D97706; }
.trust-quote::before {
  content: "风险案例"; position: absolute; top: 16px; right: 14px;
  font-size: 10.5px; font-weight: 700; letter-spacing: .06em; color: #fff;
  background: var(--qc); padding: 3px 9px; border-radius: 999px; opacity: .92;
}
.trust-quote:hover { transform: translateY(-3px); box-shadow: 0 20px 38px -20px rgba(27, 95, 208, .45); border-color: #BFD5F3; }
.trust-quote h4 { font-size: 15.5px; margin-bottom: 10px; padding-right: 72px; color: var(--brand-deep); }
.trust-quote p { font-size: 13.8px; color: var(--muted); line-height: 1.8; }
.trust-quote b { color: var(--brand); }

.trust-asks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.trust-ask {
  --tc: var(--brand);
  background: #fff; border: 1px solid #DCE6F6; border-top: 3px solid var(--tc);
  border-radius: var(--radius); padding: 16px 18px 14px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.trust-ask:nth-child(1) { --tc: #1B5FD0; }
.trust-ask:nth-child(2) { --tc: #0FA37F; }
.trust-ask:nth-child(3) { --tc: #7C5CE0; }
.trust-ask:nth-child(4) { --tc: #D97706; }
.trust-ask:hover { transform: translateY(-3px); box-shadow: 0 16px 30px -20px rgba(10, 30, 66, .5); }
.trust-ask__n { font-size: 20px; font-weight: 800; color: var(--tc); display: block; margin-bottom: 4px; font-variant-numeric: tabular-nums; }
.trust-ask__n::after { content: ""; display: block; width: 22px; height: 3px; border-radius: 2px; background: var(--tc); opacity: .45; margin-top: 5px; }
.trust-ask p { font-size: 13.5px; color: var(--ink-2); font-weight: 600; line-height: 1.6; }
.case-box--answer {
  border: 1px solid #BFE8D9; border-left: 4px solid var(--accent); border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #F0FBF6 0%, #FFFFFF 72%);
  box-shadow: 0 16px 36px -26px rgba(15, 163, 127, .55);
}
.case-box--answer h3 { color: #0B6B54; }
.case-box--answer b { color: #0B8A6A; }
@media (max-width: 960px) {
  .trust-quotes { grid-template-columns: 1fr; }
  .trust-asks { grid-template-columns: repeat(2, 1fr); }
  .trust-block { padding: 26px 22px 24px; }
}
@media (max-width: 640px) {
  .trust-asks { grid-template-columns: 1fr; }
}

/* ---------- 18. About page ---------- */
.about-grid { display: grid; grid-template-columns: minmax(0, 620px); gap: 64px; align-items: center; }
.value-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; height: 100%; }
.value-card__ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); margin-bottom: 16px; }
.value-card__ico svg { width: 21px; height: 21px; }
.value-card h3 { font-size: 17.5px; margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--muted); }

.svc-card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px 28px; overflow: hidden; }
.svc-card__n { position: absolute; right: 22px; top: 14px; font-size: 58px; font-weight: 700; color: var(--surface-2); line-height: 1; letter-spacing: -.04em; }
.svc-card h3 { font-size: 19px; margin-bottom: 12px; position: relative; }
.svc-card p { font-size: 14.5px; color: var(--muted); margin-bottom: 18px; position: relative; }
.svc-card ul { position: relative; display: grid; gap: 9px; }
.svc-card li { display: flex; gap: 9px; font-size: 14px; color: var(--ink-2); }
.svc-card li svg { width: 15px; height: 15px; color: var(--accent); flex: none; margin-top: 5px; }

/* ---------- 19. Contact page ---------- */
.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: start; }
.info-card {
  display: flex; gap: 16px; padding: 24px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.info-card:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.info-card__ico { width: 46px; height: 46px; border-radius: 12px; flex: none; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); }
.info-card__ico svg { width: 21px; height: 21px; }
.info-card__l { font-size: 13px; color: var(--muted); letter-spacing: .04em; }
.info-card__v { font-size: 16.5px; font-weight: 600; margin-top: 3px; word-break: break-all; }
.info-card__v a:hover { color: var(--accent); }
.info-card__s { font-size: 13px; color: var(--muted); margin-top: 5px; }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 36px 34px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field-group { margin-bottom: 20px; }
.field-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.field-group label span { color: #D9534F; margin-left: 2px; }
.field-group input, .field-group select, .field-group textarea {
  width: 100%; padding: 12px 15px; border: 1px solid var(--line-strong);
  border-radius: 10px; background: #fff; font-size: 15px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field-group input::placeholder, .field-group textarea::placeholder { color: #A8B6C4; }
.field-group input:focus, .field-group select:focus, .field-group textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(27, 95, 208, .12);
}
.field-group textarea { min-height: 128px; resize: vertical; }
.field-group.has-error input, .field-group.has-error select, .field-group.has-error textarea { border-color: #D9534F; }
.field-error { display: none; font-size: 12.5px; color: #D9534F; margin-top: 6px; }
.field-group.has-error .field-error { display: block; }
.form-check { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--muted); margin-bottom: 22px; }
.form-check input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--brand); flex: none; }
.form-submit { width: 100%; }
.form-ok {
  display: none; padding: 18px 22px; border-radius: var(--radius);
  background: var(--accent-soft); color: #0B7A5E; font-size: 15px; align-items: center; gap: 12px;
}
.form-ok.is-show { display: flex; }
.form-ok svg { width: 20px; height: 20px; flex: none; }

.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 22px 40px 22px 0; font-size: 16.5px; font-weight: 600; position: relative;
  transition: color .2s var(--ease);
}
.faq__q:hover { color: var(--brand); }
.faq__q::after {
  content: ""; position: absolute; right: 6px; top: 50%; width: 11px; height: 11px;
  border-right: 2px solid var(--brand); border-bottom: 2px solid var(--brand);
  transform: translateY(-70%) rotate(45deg); transition: transform .3s var(--ease);
}
.faq__item.is-open .faq__q::after { transform: translateY(-30%) rotate(225deg); }
.faq__a { display: none; padding: 0 40px 22px 0; color: var(--muted); font-size: 15px; }
.faq__item.is-open .faq__a { display: block; }

/* ---------- 20. Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .09s; }
.reveal-d2 { transition-delay: .18s; }
.reveal-d3 { transition-delay: .27s; }
.reveal-d4 { transition-delay: .36s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 21. Responsive ---------- */
@media (max-width: 1080px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .section { padding: 76px 0; }
  .section--tight { padding: 52px 0; }
  .hero { padding: 60px 0 80px; }
  .hero__grid { grid-template-columns: 1fr; gap: 52px; }
  .hero__visual { order: 2; }
  .tech-panel { width: min(100%, 420px); }
  .nav__menu, .nav__phone { display: none; }
  .burger { display: flex; }
  .grid-2, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .biz-row { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); gap: 34px 0; }
  .process__step:not(:last-child)::after { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta-band__inner { grid-template-columns: 1fr; }
  .quote { border-radius: var(--radius); padding: 24px 26px; }
}
@media (max-width: 640px) {
  body { font-size: 15.5px; }
  .container { padding: 0 20px; }
  .section { padding: 60px 0; }
  .section--tight { padding: 44px 0; }
  .section--tight .section-head { margin-bottom: 26px; }
  .section--tight .grid-2 { gap: 16px; }
  .grid-2, .grid-3, .grid-4, .feature-grid, .pain-grid { grid-template-columns: 1fr; }
  .biz-row { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 24px 16px; }
  .process { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 26px 22px; }
  .footer__grid { grid-template-columns: 1fr; gap: 30px; }
  .biz-card, .svc-card, .feat-card { padding: 26px 22px; }
  .hero__actions .btn { width: 100%; }
  .tech-panel { padding: 20px; }
  .tech-panel__grid { grid-template-columns: 1fr; }
  .table-wrap { border-radius: var(--radius); }
}

/* 首页动态图片滚动（参考群晖官网） */
.syno-marquee { overflow: hidden; border-radius: var(--radius); }
.syno-marquee__track { display: flex; gap: 20px; width: max-content; animation: syno-scroll 30s linear infinite; }
.syno-marquee:hover .syno-marquee__track { animation-play-state: paused; }
.syno-marquee__track img { height: 230px; width: auto; border-radius: 12px; display: block; box-shadow: 0 8px 24px rgba(7, 22, 48, .10); }
@keyframes syno-scroll { from { transform: translateX(0); } to { transform: translateX(calc(-50% - 10px)); } }
@media (max-width: 640px) {
  .syno-marquee__track img { height: 150px; }
}

/* 首页群晖方案视频面板（视频在上 · 文字在下） */
.syno-video {
  position: relative; margin-top: 24px;
  border-radius: var(--radius-lg); overflow: hidden;
  background: #fff;
  border: 2px solid transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(120deg, var(--brand) 0%, var(--brand-bright) 42%, var(--accent) 100%) border-box;
  box-shadow: 0 24px 56px -32px rgba(10, 30, 66, .38);
}
.syno-video::before {
  content: ""; display: block; height: 4px;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-bright) 48%, var(--accent) 100%);
}
.syno-video__frame { position: relative; background: #0A1428; aspect-ratio: 16 / 9; }
.syno-video__frame video { width: 100%; height: 100%; object-fit: contain; background: #0A1428; }
.syno-video__body { padding: 24px 30px 26px; }
.syno-video__head {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.syno-video__title { display: flex; flex-direction: column; align-items: flex-start; }
.syno-video__title h3 { font-size: 21px; color: var(--brand-deep); margin: 0; line-height: 1.4; }
.syno-video__cta { flex-shrink: 0; }
.syno-video__desc {
  font-size: 14.5px; color: var(--muted); line-height: 1.85; margin: 14px 0 0;
  padding-top: 16px; border-top: 1px solid var(--line);
}
@media (max-width: 960px) {
  .syno-video__body { padding: 20px 20px 22px; }
  .syno-video__head { flex-direction: column; align-items: flex-start; gap: 14px; }
}

/* 关于我们 - 联系信息列表 */
.qc-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.qc-list li { display: flex; align-items: flex-start; gap: 12px; color: var(--ink); font-size: 16px; line-height: 1.6; }
.qc-list li svg { width: 18px; height: 18px; flex: none; margin-top: 3px; color: var(--accent); }

/* =========================================================
   中 / 英文 语言切换控件
   ========================================================= */
.lang-switch {
  display: inline-flex; align-items: center; gap: 2px; flex: none;
  padding: 3px; border: 1px solid var(--line-strong); border-radius: 999px;
  background: var(--surface); cursor: pointer; font: inherit; line-height: 1;
  -webkit-tap-highlight-color: transparent; transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.lang-switch:hover { border-color: var(--brand); box-shadow: 0 2px 10px rgba(27,95,208,.14); }
.lang-switch:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.lang-switch__opt {
  padding: 5px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 700;
  color: var(--muted); white-space: nowrap; letter-spacing: .02em;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.lang-switch__opt[data-lang="en"] { font-size: 11.5px; letter-spacing: .08em; }
/* 中文态（默认） */
.lang-switch__opt[data-lang="zh"] { background: var(--brand); color: #fff; }
.lang-switch__opt[data-lang="en"] { background: transparent; color: var(--muted); }
/* 英文态 */
html[data-lang="en"] .lang-switch__opt[data-lang="zh"] { background: transparent; color: var(--muted); }
html[data-lang="en"] .lang-switch__opt[data-lang="en"] { background: var(--brand); color: #fff; }

/* 深色背景（404 页）变体 */
.lang-switch--onDark { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.3); }
.lang-switch--onDark:hover { border-color: rgba(255,255,255,.6); box-shadow: none; }
.lang-switch--onDark .lang-switch__opt[data-lang="zh"] { background: var(--brand-bright); color: #fff; }
.lang-switch--onDark .lang-switch__opt[data-lang="en"] { background: transparent; color: rgba(255,255,255,.72); }
html[data-lang="en"] .lang-switch--onDark .lang-switch__opt[data-lang="zh"] { background: transparent; color: rgba(255,255,255,.72); }
html[data-lang="en"] .lang-switch--onDark .lang-switch__opt[data-lang="en"] { background: var(--brand-bright); color: #fff; }

/* 切换提示 */
.lang-toast {
  position: fixed; left: 50%; bottom: 104px; z-index: 9999;
  transform: translate(-50%, 12px); opacity: 0; pointer-events: none;
  background: rgba(13,27,46,.94); color: #fff; font-size: 13.5px; font-weight: 500;
  padding: 10px 18px; border-radius: 999px; white-space: nowrap;
  box-shadow: 0 8px 24px rgba(7,22,48,.28);
  transition: opacity .28s var(--ease), transform .28s var(--ease);
}
.lang-toast.is-show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1080px) {
  .nav__right { gap: 12px; }
}
@media (max-width: 960px) {
  .nav__right { gap: 10px; }
  .lang-switch__opt { padding: 5px 9px; font-size: 12px; }
}
@media (max-width: 419px) {
  .lang-switch__opt { padding: 5px 8px; font-size: 11.5px; }
}

/* 英文态排版修正：避免导航/电话/Logo 折行 */
.nav__phone { white-space: nowrap; }
html[data-lang="en"] .nav__link { white-space: nowrap; }
html[data-lang="en"] .logo__text strong,
html[data-lang="en"] .logo__text small { white-space: nowrap; }
@media (max-width: 1200px) {
  html[data-lang="en"] .nav__phone { display: none; }
}
@media (max-width: 1080px) {
  html[data-lang="en"] .nav__link { font-size: 13.5px; padding: 8px 9px; }
}
@media (max-width: 480px) {
  /* 英文 Logo 文案较宽，小屏仅保留图形标识（图内已含品牌名） */
  html[data-lang="en"] .logo__text { display: none; }
  html[data-lang="en"] .logo__img { height: 46px; }
  html[data-lang="en"] .nav__right { gap: 8px; }
  .lang-switch__opt { padding: 5px 7px; font-size: 11.5px; }
}

/* 英文态页头：防止 Logo 文案溢出与导航重叠 */
html[data-lang="en"] .logo { flex-shrink: 0; }
html[data-lang="en"] .logo__text strong { font-size: 18px; }
html[data-lang="en"] .logo__text small { font-size: 11px; }
@media (max-width: 1279px) {
  html[data-lang="en"] .nav__phone { display: none; }
}
@media (max-width: 1080px) {
  html[data-lang="en"] .nav__link { font-size: 13.5px; padding: 8px 9px; }
}
@media (min-width: 481px) { html[data-lang="en"] .logo__img { height: 40px; } }
html[data-lang="en"] .logo__text strong { font-size: 17px; }
html[data-lang="en"] .logo__text small { font-size: 10.5px; }
@media (max-width: 1299px) { html[data-lang="en"] .nav__phone { display: none; } }
@media (max-width: 1080px) { html[data-lang="en"] .nav__link { font-size: 12.5px; padding: 7px; } }
/* —— 英文态页头最终规则（覆盖上方临时值）—— */
@media (max-width: 1180px) {
  html[data-lang="en"] .nav__link { font-size: 12.5px; padding: 7px; }
}
@media (max-width: 1439px) {
  html[data-lang="en"] .nav__phone { display: none; }
}
@media (max-width: 1080px) {
  html[data-lang="en"] .nav__right .btn { display: none; }
}
/* ===== 英文态页头（最终版，置于文件末尾以覆盖上方临时值）===== */
html[data-lang="en"] .logo { flex-shrink: 0; }
@media (min-width: 481px) { html[data-lang="en"] .logo__img { height: 36px; } }
html[data-lang="en"] .logo__text strong { font-size: 15.5px; }
html[data-lang="en"] .logo__text small { font-size: 10px; }
html[data-lang="en"] .nav__right { gap: 12px; }
html[data-lang="en"] .nav__link { font-size: 13.5px; padding: 8px 11px; white-space: nowrap; }
@media (max-width: 1180px) { html[data-lang="en"] .nav__link { font-size: 12.5px; padding: 7px; } }
@media (max-width: 1080px) { html[data-lang="en"] .nav__right .btn { display: none; } }
html[data-lang="en"] .nav__phone { display: none; }
/* 英文态导航较宽，头部电话常驻隐藏（浮层一键电话仍可用） */
/* 中文态：导航与 Logo 文案不折行（语言切换按钮占位后的补偿） */
.nav__link { white-space: nowrap; }
.logo__text strong, .logo__text small { white-space: nowrap; }
/* —— 页头空间补偿（语言切换按钮加入后）—— */
.header .logo, .header .nav__menu, .header .nav__right { flex-shrink: 0; }
@media (min-width: 721px) { .logo__img { height: 56px; } }
.nav__link { font-size: 14px; padding: 9px 12px; }
@media (min-width: 961px) { .nav__right { gap: 12px; } }
.lang-switch__opt { padding: 4px 8px; }
@media (max-width: 1180px) { .nav__phone { display: none; } }
.nav__link { padding: 9px 10px; }

/* =========================================================
   新闻资讯模块
   ========================================================= */
.news-wrap { padding: 64px 24px 96px; }
.news-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 26px;
}
.news-card {
  display: flex; flex-direction: column; text-decoration: none; color: inherit;
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.news-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow);
  border-color: var(--brand-soft);
}
.news-card__media {
  aspect-ratio: 16 / 9; background: linear-gradient(135deg, var(--brand-deep), var(--brand));
  display: flex; align-items: center; justify-content: center; overflow: hidden; flex: none;
}
.news-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-card__ph span {
  color: rgba(255,255,255,.85); font-weight: 800; letter-spacing: .3em; font-size: 20px;
}
.news-card__body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.news-card__date {
  font-size: 12.5px; font-weight: 700; color: var(--brand);
  background: var(--brand-soft); border-radius: 999px; padding: 3px 12px; align-self: flex-start;
  letter-spacing: .04em;
}
.news-card__title {
  font-size: 17.5px; line-height: 1.45; color: var(--ink); margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card__summary {
  font-size: 13.5px; line-height: 1.7; color: var(--muted); margin: 0; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card__more {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 2px;
  font-size: 13.5px; font-weight: 700; color: var(--brand);
}
.news-card:hover .news-card__more svg { transform: translateX(3px); }
.news-card__more svg { transition: transform .25s var(--ease); }

.news-empty {
  grid-column: 1 / -1; text-align: center; padding: 90px 20px;
  color: var(--muted); font-size: 15px;
  background: var(--surface); border: 1px dashed var(--line-strong); border-radius: var(--radius);
}

/* 详情 */
.news-article {
  max-width: 860px; margin: 0 auto; background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: 40px 46px 44px;
}
.news-back {
  display: inline-block; font-size: 13.5px; font-weight: 600; color: var(--brand);
  text-decoration: none; margin-bottom: 18px;
}
.news-back:hover { text-decoration: underline; }
.news-article__title { font-size: 26px; line-height: 1.4; color: var(--ink); margin: 12px 0 22px; }
.news-article__body { font-size: 15px; line-height: 1.9; color: var(--ink-2); }
.news-article__body p { margin: 0 0 16px; }
.news-article__body p:last-child { margin-bottom: 0; }
.news-figure { margin: 22px 0; }
.news-figure img {
  width: 100%; border-radius: 10px; border: 1px solid var(--line); display: block;
}
.news-figure--cover { margin: 0 0 26px; }
.news-article__foot {
  margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; gap: 12px; flex-wrap: wrap;
}

@media (max-width: 720px) {
  .news-wrap { padding: 40px 16px 72px; }
  .news-grid { grid-template-columns: 1fr; gap: 18px; }
  .news-article { padding: 26px 20px 30px; }
  .news-article__title { font-size: 21px; }
}
/* —— 新增「新闻资讯」导航项后的头部宽度补偿 —— */
@media (min-width: 1181px) {
  .header .nav__link { padding: 9px 8px; }
  .header .nav__right { gap: 10px; }
}
@media (min-width: 961px) and (max-width: 1180px) {
  .header .nav__link { padding: 9px 5px; font-size: 13px; }
  .header .nav__right { gap: 8px; }
  .header .nav__right .btn { padding: 8px 13px; }
}

/* —— 新闻正文配图尺寸：[img:sm]/[img:md]/[img:lg] 居中小图；方形封面按图标显示 —— */
.news-figure--sm, .news-figure--md, .news-figure--lg, .news-figure--icon {
  margin-left: auto; margin-right: auto; text-align: center;
}
.news-figure--sm img, .news-figure--md img, .news-figure--lg img, .news-figure--icon img {
  width: auto; max-width: 100%; margin: 0 auto;
}
.news-figure--sm { max-width: 360px; }
.news-figure--md { max-width: 560px; }
.news-figure--lg { max-width: 720px; }
.news-figure--icon { max-width: 300px; }