/* ============================================================
   上海谐住信息技术有限公司 — 官网样式
   设计基调：简约 / 大气 / 工业理性美学
   ============================================================ */

:root {
  --brand: #0a5adb;
  --brand-600: #0a4fc0;
  --brand-700: #073d99;
  --brand-050: #eef4ff;
  --accent: #0fb6a8;
  --accent-050: #e6fbf8;

  --ink: #0e1726;
  --ink-2: #475569;
  --ink-3: #8593a8;
  --ink-inv: #ffffff;

  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --bg-mute: #eef2f7;
  --bg-deep: #0b1b34;

  --line: #e5e9f0;
  --line-strong: #d3dae5;

  --radius-s: 8px;
  --radius: 14px;
  --radius-l: 20px;
  --radius-xl: 28px;

  --shadow-xs: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);
  --shadow-md: 0 12px 28px -12px rgba(16, 24, 40, .18), 0 2px 6px rgba(16, 24, 40, .05);
  --shadow-lg: 0 32px 64px -28px rgba(11, 27, 52, .32);

  --container: 1200px;
  --nav-h: 72px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei",
          ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-num: "SF Pro Display", "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.is-locked { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.3; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
svg { display: block; }
::selection { background: rgba(10, 90, 219, .16); }

/* ---------- layout utils ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section--soft { background: var(--bg-soft); }
.section--mute { background: var(--bg-mute); }
.section--tight { padding: 72px 0; }
.stack-8 > * + * { margin-top: 8px; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; } .mt-48 { margin-top: 48px; } .mt-56 { margin-top: 56px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ---------- typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .1em;
  color: var(--brand); text-transform: uppercase;
}
.eyebrow::before {
  content: ""; width: 24px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
}
.eyebrow--inv { color: #7fb0ff; }
.eyebrow--inv::before { background: linear-gradient(90deg, #7fb0ff, var(--accent)); }

.h1 { font-size: clamp(32px, 4.4vw, 56px); letter-spacing: -.02em; }
.h2 { font-size: clamp(26px, 3vw, 38px); letter-spacing: -.02em; }
.h3 { font-size: clamp(20px, 2vw, 24px); }
.title-lg { font-size: 18px; font-weight: 700; }
.lead { font-size: clamp(16px, 1.4vw, 18px); color: var(--ink-2); line-height: 1.85; }
.muted { color: var(--ink-2); }
.muted-2 { color: var(--ink-3); }
.small { font-size: 14px; }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head .h2 { margin-top: 18px; }
.section-head .lead { margin-top: 16px; }

/* ---------- buttons ---------- */
.btn {
  --btn-h: 46px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: var(--btn-h); padding: 0 22px;
  border: 1px solid transparent; border-radius: 10px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease),
              border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
  white-space: nowrap; background: none;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; }
.btn-sm { --btn-h: 38px; padding: 0 16px; font-size: 14px; border-radius: 8px; }
.btn-lg { --btn-h: 52px; padding: 0 28px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px -10px rgba(10, 90, 219, .7); }
.btn-primary:hover { background: var(--brand-600); box-shadow: 0 12px 26px -10px rgba(10, 90, 219, .75); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #1c2942; }
.btn-outline { border-color: var(--line-strong); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-outline-inv { border-color: rgba(255, 255, 255, .38); color: #fff; }
.btn-outline-inv:hover { border-color: #fff; background: rgba(255, 255, 255, .1); }
.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { color: var(--brand); background: var(--brand-050); }
.btn:disabled { opacity: .55; cursor: not-allowed; box-shadow: none; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 600; color: var(--brand);
}
.link-arrow svg { width: 18px; height: 18px; transition: transform .22s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 80;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header__bar {
  height: var(--nav-h); display: flex; align-items: center; gap: 40px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand__mark { width: 40px; height: 40px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name { font-size: 17px; font-weight: 700; letter-spacing: .01em; }
.brand__sub { font-size: 11px; letter-spacing: .18em; color: var(--ink-3); text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; margin-right: auto; }
.nav__link {
  position: relative; padding: 8px 14px; 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-050); }
.nav__link.is-active { color: var(--brand); font-weight: 600; }
.nav__link.is-active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: -1px; height: 2px;
  background: var(--brand); border-radius: 2px;
}

.header-actions { display: flex; align-items: center; gap: 10px; flex: none; }
.nav-toggle {
  display: none; width: 42px; height: 42px; padding: 0;
  border: 1px solid var(--line); border-radius: 10px; background: #fff; cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s var(--ease), opacity .2s; }
.nav-toggle span + span { margin-top: 4px; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* user menu */
.user-menu { position: relative; }
.user-chip {
  display: flex; align-items: center; gap: 8px; height: 40px; padding: 0 12px 0 6px;
  border: 1px solid var(--line); border-radius: 999px; background: #fff; cursor: pointer;
  font-size: 14px; font-weight: 600; transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.user-chip:hover { border-color: var(--line-strong); box-shadow: var(--shadow-xs); }
.user-chip__avatar {
  width: 28px; height: 28px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-size: 13px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--accent));
}
.user-chip__caret { width: 14px; height: 14px; color: var(--ink-3); }
.user-dropdown {
  position: absolute; top: calc(100% + 10px); right: 0; width: 236px; padding: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-md); opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
}
.user-menu.is-open .user-dropdown { opacity: 1; visibility: visible; transform: none; }
.user-dropdown__head { padding: 10px 12px 12px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.user-dropdown__name { font-weight: 700; }
.user-dropdown__mail { font-size: 13px; color: var(--ink-3); word-break: break-all; }
.user-dropdown__item {
  display: flex; align-items: center; gap: 10px; width: 100%; padding: 10px 12px;
  border: 0; border-radius: 8px; background: none; text-align: left; cursor: pointer;
  font-size: 14px; color: var(--ink-2); transition: background .18s, color .18s;
}
.user-dropdown__item svg { width: 16px; height: 16px; flex: none; color: var(--ink-3); }
.user-dropdown__item:hover { background: var(--bg-soft); color: var(--ink); }
.user-dropdown__item.is-danger:hover { background: #fef2f2; color: #dc2626; }
.user-dropdown__item.is-danger:hover svg { color: #dc2626; }
.user-dropdown__badge {
  margin-left: auto; font-size: 12px; font-weight: 600; color: #fff;
  background: var(--brand); padding: 1px 7px; border-radius: 999px;
}

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--bg-deep); color: #fff; }
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .48; }
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(100deg, #07162c 8%, rgba(7, 22, 44, .84) 42%, rgba(7, 22, 44, .5) 72%, rgba(7, 22, 44, .78) 100%),
    linear-gradient(to top, rgba(7, 22, 44, .95), rgba(7, 22, 44, 0) 62%);
}
.hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 20% 40%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse at 20% 40%, #000 0%, transparent 72%);
}
.hero__inner { position: relative; padding: 128px 0 92px; }
.hero__content { max-width: 660px; }
.hero__title { margin-top: 22px; font-size: clamp(32px, 4.6vw, 58px); letter-spacing: -.02em; }
.hero__title em {
  font-style: normal;
  background: linear-gradient(96deg, #6fb0ff, #4fe3d0);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__lead { margin-top: 22px; font-size: clamp(16px, 1.5vw, 19px); line-height: 1.85; color: rgba(255, 255, 255, .78); }
.hero__lead strong { color: #fff; font-weight: 600; }
.hero__actions { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero__tags { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 10px; }
.tag-pill {
  padding: 6px 14px; border: 1px solid rgba(255, 255, 255, .22); border-radius: 999px;
  font-size: 13px; color: rgba(255, 255, 255, .82); background: rgba(255, 255, 255, .05);
}

.hero__stats {
  position: relative; margin-top: 72px; padding: 28px 0;
  border-top: 1px solid rgba(255, 255, 255, .16);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.hero__stat { border-left: 2px solid rgba(255, 255, 255, .16); padding-left: 20px; }
.hero__stat:first-child { border-left: 0; padding-left: 0; }
.hero__stat b {
  display: block; font-family: var(--font-num); font-size: clamp(28px, 3vw, 40px);
  font-weight: 700; letter-spacing: -.02em; line-height: 1.15;
}
.hero__stat b i { font-style: normal; font-size: .5em; font-weight: 600; margin-left: 3px; color: #7fb0ff; }
.hero__stat span { display: block; margin-top: 4px; font-size: 14px; color: rgba(255, 255, 255, .62); }

/* ---------- cards: business ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.biz-card {
  display: flex; flex-direction: column; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l);
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: #cfdcec; }
.biz-card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-mute); }
.biz-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.biz-card:hover .biz-card__media img { transform: scale(1.045); }
.biz-card__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(7, 22, 44, .55), rgba(7, 22, 44, 0) 55%);
}
.biz-card__index {
  position: absolute; z-index: 2; left: 18px; bottom: 14px;
  font-family: var(--font-num); font-size: 13px; font-weight: 700; letter-spacing: .12em;
  color: rgba(255, 255, 255, .82);
}
.biz-card__body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.biz-card__icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-050); color: var(--brand); margin-bottom: 18px;
}
.biz-card__icon svg { width: 24px; height: 24px; }
.biz-card__desc { margin-top: 12px; color: var(--ink-2); font-size: 15px; }
.biz-card__list { margin-top: 20px; display: grid; gap: 9px; }
.biz-card__list li { display: flex; gap: 9px; font-size: 14px; color: var(--ink-2); }
.biz-card__list svg { width: 16px; height: 16px; flex: none; margin-top: 5px; color: var(--accent); }
.biz-card__foot { margin-top: auto; padding-top: 24px; }

/* 四列时的紧凑排版（首页四条主线） */
.grid-4 > .biz-card .biz-card__body { padding: 22px 20px 24px; }
.grid-4 > .biz-card .biz-card__icon { width: 42px; height: 42px; margin-bottom: 14px; border-radius: 11px; }
.grid-4 > .biz-card .biz-card__icon svg { width: 22px; height: 22px; }
.grid-4 > .biz-card .biz-card__desc { margin-top: 10px; font-size: 14.5px; }
.grid-4 > .biz-card .biz-card__list { margin-top: 16px; gap: 8px; }
.grid-4 > .biz-card .biz-card__list li { gap: 7px; font-size: 13.5px; line-height: 1.6; }
.grid-4 > .biz-card .biz-card__list svg { width: 15px; height: 15px; margin-top: 4px; }
.grid-4 > .biz-card .biz-card__media { aspect-ratio: 4 / 3; }
.grid-4 > .biz-card .biz-card__foot { padding-top: 20px; }

/* ---------- feature / advantage ---------- */
.feature {
  padding: 30px 28px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-l); height: 100%;
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
.feature:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.feature__num {
  font-family: var(--font-num); font-size: 13px; font-weight: 700; letter-spacing: .14em;
  color: var(--brand);
}
.feature__icon {
  width: 48px; height: 48px; border-radius: 13px; margin: 14px 0 18px;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(140deg, var(--brand), #2b7bff 55%, var(--accent) 140%);
  box-shadow: 0 10px 22px -12px rgba(10, 90, 219, .8);
}
.feature__icon svg { width: 24px; height: 24px; }
.feature p { color: var(--ink-2); font-size: 15px; }

/* ---------- process timeline ---------- */
.process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; }
.process__step { position: relative; padding: 0 18px; }
.process__step::before {
  content: ""; position: absolute; top: 17px; left: 0; right: 0; height: 2px;
  background: var(--line-strong);
}
.process__step:first-child::before { left: 50%; }
.process__step:last-child::before { right: 50%; }
.process__dot {
  position: relative; z-index: 2; width: 36px; height: 36px; margin: 0 auto;
  border-radius: 50%; display: grid; place-items: center;
  font-family: var(--font-num); font-size: 14px; font-weight: 700;
  background: #fff; color: var(--brand); border: 2px solid var(--brand);
  box-shadow: 0 0 0 5px #fff;
}
.process__title { margin-top: 18px; font-size: 16px; font-weight: 700; text-align: center; }
.process__desc { margin-top: 8px; font-size: 13.5px; color: var(--ink-2); text-align: center; line-height: 1.7; }

/* ---------- industries ---------- */
.industry {
  display: flex; flex-direction: column; align-items: flex-start; gap: 10px;
  padding: 26px 24px; border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; transition: border-color .25s var(--ease), background .25s var(--ease);
}
.industry:hover { border-color: var(--brand); background: var(--brand-050); }
.industry svg { width: 26px; height: 26px; color: var(--brand); }
.industry b { font-size: 16px; }
.industry span { font-size: 14px; color: var(--ink-2); }

/* ---------- split feature (services page) ---------- */
.split {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 72px; align-items: center;
}
.split--rev .split__media { order: 2; }
.split__media { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); }
.split__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.split__badge {
  position: absolute; left: 20px; bottom: 20px; padding: 12px 18px;
  background: rgba(255, 255, 255, .94); backdrop-filter: blur(8px);
  border-radius: 12px; box-shadow: var(--shadow-md); max-width: 260px;
}
.split__badge b { display: block; font-family: var(--font-num); font-size: 22px; color: var(--brand); }
.split__badge span { font-size: 13px; color: var(--ink-2); }
.split__body > .h2 { margin-top: 18px; }

.checklist { display: grid; gap: 12px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--ink-2); }
.checklist svg { width: 18px; height: 18px; flex: none; margin-top: 5px; color: var(--brand); }
.checklist--two { grid-template-columns: 1fr 1fr; gap: 12px 24px; }

.spec-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.spec {
  padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-s); background: #fff;
}
.spec b { display: block; font-family: var(--font-num); font-size: 20px; color: var(--brand); }
.spec span { font-size: 13px; color: var(--ink-2); }

/* ---------- services tabs / detail ---------- */
.svc-block + .svc-block { margin-top: 0; }

/* ---------- table ---------- */
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius-l); overflow: hidden; background: #fff; }
.table { width: 100%; border-collapse: collapse; font-size: 15px; }
.table th, .table td { padding: 16px 22px; text-align: left; border-bottom: 1px solid var(--line); }
.table thead th { background: var(--bg-soft); font-size: 14px; font-weight: 700; color: var(--ink); }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover td { background: #fafcff; }
.table td:first-child { font-weight: 600; }
.table .num { font-family: var(--font-num); }
.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; }
.pill--brand { background: var(--brand-050); color: var(--brand); }
.pill--accent { background: var(--accent-050); color: #0b8f84; }
.pill--gray { background: var(--bg-mute); color: var(--ink-2); }

/* ---------- accordion (faq) ---------- */
.accordion { display: grid; gap: 12px; }
.acc-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.acc-item.is-open { border-color: #cfdcec; box-shadow: var(--shadow-sm); }
.acc-head {
  width: 100%; display: flex; align-items: center; gap: 16px; padding: 18px 22px;
  border: 0; background: none; cursor: pointer; text-align: left; font-size: 16px; font-weight: 600;
}
.acc-head__q { flex: 1; }
.acc-head__k { color: var(--brand); font-family: var(--font-num); font-size: 14px; font-weight: 700; flex: none; }
.acc-head svg { width: 18px; height: 18px; flex: none; color: var(--ink-3); transition: transform .25s var(--ease); }
.acc-item.is-open .acc-head svg { transform: rotate(180deg); color: var(--brand); }
.acc-body { display: none; padding: 0 22px 20px; color: var(--ink-2); font-size: 15px; }
.acc-item.is-open .acc-body { display: block; }

/* ---------- news ---------- */
.news-item {
  display: flex; gap: 20px; padding: 22px; border: 1px solid var(--line);
  border-radius: var(--radius); background: #fff; align-items: flex-start;
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}
.news-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.news-item__date {
  flex: none; width: 62px; text-align: center; padding: 8px 0;
  border-radius: 10px; background: var(--brand-050); color: var(--brand);
}
.news-item__date b { display: block; font-family: var(--font-num); font-size: 22px; line-height: 1.1; }
.news-item__date span { font-size: 12px; }
.news-item__body { flex: 1; min-width: 0; }
.news-item__body h4 { font-size: 16.5px; }
.news-item__body p { margin-top: 6px; font-size: 14px; color: var(--ink-2); }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: var(--radius-xl);
  background: linear-gradient(120deg, #07162c 0%, #10315e 46%, #0a5adb 130%);
  color: #fff; padding: 64px;
}
.cta-band::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 88% 12%, rgba(79, 227, 208, .28), transparent 45%),
                    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: cover, 64px 64px; pointer-events: none;
}
.cta-band__inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band__text { max-width: 620px; }
.cta-band__text .h2 { margin-top: 14px; }
.cta-band__text p { margin-top: 14px; color: rgba(255, 255, 255, .75); }

/* ---------- page head (inner pages) ---------- */
.page-head {
  position: relative; overflow: hidden; padding: 84px 0 72px;
  background: linear-gradient(160deg, #0b1b34 0%, #123162 70%, #0a4fc0 140%);
  color: #fff;
}
.page-head::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px),
                    radial-gradient(circle at 78% 30%, rgba(79, 227, 208, .22), transparent 42%);
  background-size: 64px 64px, cover;
}
.page-head__inner { position: relative; }
.page-head h1 { margin-top: 18px; font-size: clamp(30px, 3.6vw, 46px); }
.page-head p { margin-top: 16px; max-width: 680px; color: rgba(255, 255, 255, .76); font-size: 17px; }
.crumbs { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: rgba(255, 255, 255, .6); }
.crumbs a:hover { color: #fff; }
.crumbs svg { width: 14px; height: 14px; }

/* ---------- about ---------- */
.about-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: center; }
.about-figure { position: relative; }
.about-figure img { width: 100%; border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); aspect-ratio: 4/3; object-fit: cover; }
.about-figure__card {
  position: absolute; right: -20px; bottom: -24px; width: 220px; padding: 20px;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-md);
}
.about-figure__card b { display: block; font-family: var(--font-num); font-size: 28px; color: var(--brand); }
.about-figure__card span { font-size: 13px; color: var(--ink-2); }

.milestones { position: relative; padding-left: 30px; }
.milestones::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.ms { position: relative; padding-bottom: 30px; }
.ms::before {
  content: ""; position: absolute; left: -30px; top: 8px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff; border: 2px solid var(--brand);
}
.ms__year { font-family: var(--font-num); font-size: 15px; font-weight: 700; color: var(--brand); }
.ms__title { margin-top: 4px; font-size: 17px; font-weight: 700; }
.ms__desc { margin-top: 4px; font-size: 14.5px; color: var(--ink-2); }

.value-card { padding: 32px 28px; border-radius: var(--radius-l); background: #fff; border: 1px solid var(--line); height: 100%; }
.value-card__ico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--bg-soft); color: var(--brand); margin-bottom: 16px;
}
.value-card__ico svg { width: 22px; height: 22px; }
.value-card p { color: var(--ink-2); font-size: 14.5px; }

.cert-item {
  display: flex; align-items: center; gap: 14px; padding: 18px 20px;
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
}
.cert-item svg { width: 22px; height: 22px; color: var(--accent); flex: none; }
.cert-item b { display: block; font-size: 15px; }
.cert-item span { font-size: 13px; color: var(--ink-3); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; align-items: start; }
.info-card {
  display: flex; gap: 16px; padding: 22px; border: 1px solid var(--line);
  border-radius: var(--radius); background: #fff;
}
.info-card__ico {
  width: 44px; height: 44px; flex: none; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-050); color: var(--brand);
}
.info-card__ico svg { width: 21px; height: 21px; }
.info-card__label { font-size: 13px; color: var(--ink-3); }
.info-card__val { font-size: 16px; font-weight: 600; margin-top: 2px; }
.info-card__val a:hover { color: var(--brand); }
.info-card__note { font-size: 13px; color: var(--ink-2); margin-top: 4px; }

.form-card { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: #fff; box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; }
.field label .req { color: #e5484d; margin-left: 2px; }
.field input[type="text"], .field input[type="tel"], .field input[type="email"],
.field input[type="password"], .field select, .field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line-strong); border-radius: 10px;
  background: #fff; font-size: 15px; transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.field textarea { min-height: 120px; resize: vertical; line-height: 1.7; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(10, 90, 219, .12);
}
.field input.is-error, .field select.is-error, .field textarea.is-error { border-color: #e5484d; }
.field__hint { font-size: 12.5px; color: var(--ink-3); }
.field__err { font-size: 12.5px; color: #e5484d; display: none; }
.field.has-error .field__err { display: block; }
.field--readonly input { background: var(--bg-soft); color: var(--ink-2); }

.check-line { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--ink-2); }
.check-line input { margin-top: 3px; accent-color: var(--brand); }
.check-line a { color: var(--brand); text-decoration: underline; }

.file-drop {
  border: 1.5px dashed var(--line-strong); border-radius: var(--radius); padding: 22px;
  text-align: center; background: var(--bg-soft); cursor: pointer;
  transition: border-color .2s, background .2s;
}
.file-drop:hover, .file-drop.is-over { border-color: var(--brand); background: var(--brand-050); }
.file-drop svg { width: 26px; height: 26px; margin: 0 auto 8px; color: var(--ink-3); }
.file-drop b { display: block; font-size: 14.5px; }
.file-drop span { font-size: 12.5px; color: var(--ink-3); }
.file-list { display: grid; gap: 8px; margin-top: 12px; }
.file-row {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: var(--radius-s); background: #fff; font-size: 13.5px;
}
.file-row svg { width: 16px; height: 16px; color: var(--brand); flex: none; }
.file-row__name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-row__size { color: var(--ink-3); flex: none; }
.file-row__del { border: 0; background: none; cursor: pointer; color: var(--ink-3); padding: 2px; flex: none; }
.file-row__del:hover { color: #e5484d; }

.msg-list { display: grid; gap: 14px; }
.msg-card { padding: 20px 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.msg-card__top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.msg-card__top b { font-size: 15.5px; }
.msg-card__meta { margin-left: auto; font-size: 12.5px; color: var(--ink-3); }
.msg-card__body { margin-top: 8px; font-size: 14.5px; color: var(--ink-2); white-space: pre-wrap; }
.msg-card__foot { margin-top: 12px; display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--ink-3); flex-wrap: wrap; }
.msg-card__att { display: inline-flex; align-items: center; gap: 6px; color: var(--brand); }
.msg-card__att svg { width: 14px; height: 14px; }
.msg-empty { padding: 40px; text-align: center; color: var(--ink-3); font-size: 14.5px; border: 1px dashed var(--line-strong); border-radius: var(--radius); }

/* ---------- downloads ---------- */
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.dl-card {
  display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--line);
  border-radius: var(--radius-l); background: #fff; transition: box-shadow .25s, transform .25s;
}
.dl-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.dl-card__ico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-050); color: var(--brand); margin-bottom: 16px;
}
.dl-card__ico svg { width: 22px; height: 22px; }
.dl-card h4 { font-size: 16.5px; }
.dl-card p { margin-top: 8px; font-size: 14px; color: var(--ink-2); flex: 1; }
.dl-card__meta { margin-top: 16px; font-size: 12.5px; color: var(--ink-3); }
.dl-card__actions { margin-top: 16px; display: flex; gap: 10px; }
.dl-lock { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: #b26a00; }
.dl-lock svg { width: 14px; height: 14px; }

/* ---------- footer ---------- */
.site-footer { background: #07162c; color: rgba(255, 255, 255, .68); padding: 72px 0 0; margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand__name { color: #fff; font-size: 18px; }
.footer-brand p { margin-top: 18px; font-size: 14.5px; line-height: 1.85; max-width: 320px; }
.footer-col h5 { color: #fff; font-size: 15px; margin-bottom: 18px; }
.footer-col li + li { margin-top: 11px; }
.footer-col a { font-size: 14.5px; transition: color .2s var(--ease); }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; font-size: 14.5px; line-height: 1.7; }
.footer-contact svg { width: 16px; height: 16px; flex: none; margin-top: 5px; color: var(--accent); }
.footer-social { display: flex; gap: 10px; margin-top: 22px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255, 255, 255, .07); color: #fff; border: 1px solid rgba(255, 255, 255, .1);
  transition: background .2s var(--ease);
}
.footer-social a:hover { background: var(--brand); }
.footer-social svg { width: 18px; height: 18px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13.5px;
}
.footer-bottom a:hover { color: #fff; }

/* ---------- auth drawer ---------- */
.drawer-mask {
  position: fixed; inset: 0; z-index: 200; background: rgba(7, 22, 44, .48);
  backdrop-filter: blur(3px); opacity: 0; visibility: hidden;
  transition: opacity .26s var(--ease), visibility .26s;
}
.drawer-mask.is-open { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; z-index: 210; top: 0; right: 0; bottom: 0; width: min(440px, 100%);
  background: #fff; box-shadow: var(--shadow-lg);
  transform: translateX(100%); transition: transform .32s var(--ease);
  display: flex; flex-direction: column; overflow: hidden;
}
.drawer.is-open { transform: none; }
.drawer__head {
  padding: 22px 26px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.drawer__head h3 { font-size: 19px; }
.icon-btn {
  width: 36px; height: 36px; border-radius: 9px; border: 1px solid var(--line);
  background: #fff; cursor: pointer; display: grid; place-items: center; color: var(--ink-2); flex: none;
}
.icon-btn:hover { background: var(--bg-soft); color: var(--ink); }
.icon-btn svg { width: 18px; height: 18px; }
.drawer__body { padding: 26px; overflow-y: auto; flex: 1; }
.drawer__foot { padding: 18px 26px 24px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-3); text-align: center; }

.tabs { display: flex; gap: 4px; padding: 4px; background: var(--bg-mute); border-radius: 10px; margin-bottom: 24px; }
.tabs button {
  flex: 1; height: 38px; border: 0; border-radius: 8px; background: none; cursor: pointer;
  font-size: 14.5px; font-weight: 600; color: var(--ink-2); transition: background .2s, color .2s;
}
.tabs button.is-active { background: #fff; color: var(--brand); box-shadow: var(--shadow-xs); }

/* 验证码输入行：输入框 + 发送按钮 */
.code-field { display: flex; gap: 8px; align-items: stretch; }
.code-field input { flex: 1 1 auto; min-width: 0; letter-spacing: .08em; }
.code-field .btn { flex: none; height: auto; min-height: 46px; padding: 0 14px; white-space: nowrap; font-size: 13.5px; }
.auth-links { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 14px; font-size: 13.5px; color: var(--ink-3); }
.auth-links.is-center { justify-content: center; }
.link-btn { border: 0; background: none; padding: 0; color: var(--brand); cursor: pointer; font: inherit; font-size: 13.5px; }
.link-btn:hover { text-decoration: underline; }

.alert {
  display: flex; gap: 10px; padding: 12px 14px; border-radius: 10px; font-size: 13.5px;
  margin-bottom: 18px; line-height: 1.6;
}
.alert svg { width: 16px; height: 16px; flex: none; margin-top: 3px; }
.alert--warn { background: #fff7ed; color: #9a3412; border: 1px solid #fed7aa; }
.alert--err { background: #fef2f2; color: #b42318; border: 1px solid #fecaca; }
.alert--ok { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert--info { background: var(--brand-050); color: var(--brand-700); border: 1px solid #cfe0ff; }

.demo-hint { margin-top: 18px; padding: 14px 16px; border-radius: 10px; background: var(--bg-soft); font-size: 13px; color: var(--ink-2); }
.demo-hint code { background: #fff; border: 1px solid var(--line); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; }

/* ---------- toast ---------- */
.toast-wrap { position: fixed; z-index: 300; top: 88px; left: 50%; transform: translateX(-50%); display: grid; gap: 10px; pointer-events: none; }
.toast {
  display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 10px;
  background: #0e1726; color: #fff; font-size: 14.5px; box-shadow: var(--shadow-md);
  animation: toast-in .3s var(--ease);
}
.toast svg { width: 17px; height: 17px; flex: none; }
.toast--ok svg { color: #4ade80; }
.toast--err svg { color: #f87171; }
.toast--info svg { color: #7fb0ff; }
@keyframes toast-in { from { opacity: 0; transform: translateY(-12px); } }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .split { gap: 48px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 28px 24px; }
  .hero__stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .process { grid-template-columns: repeat(3, 1fr); row-gap: 36px; }
}
@media (max-width: 992px) {
  .nav {
    position: fixed; inset: var(--nav-h) 0 auto; flex-direction: column; align-items: stretch;
    gap: 0; padding: 12px 20px 20px; background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md); transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__link { padding: 13px 12px; font-size: 16px; border-radius: 10px; }
  .nav__link.is-active::after { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .btn-outline { display: none; }
  .grid-3, .grid-4, .dl-grid, .spec-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .split, .about-intro, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .split--rev .split__media { order: 0; }
  .checklist--two { grid-template-columns: 1fr; }
  .about-figure__card { right: 12px; bottom: -18px; width: 190px; }
  .cta-band { padding: 44px 32px; }
}
@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .container { padding: 0 20px; }
  .hero__inner { padding: 84px 0 64px; }
  .grid-3, .grid-4, .dl-grid, .spec-grid, .process { grid-template-columns: 1fr; }
  .process__step::before { display: none; }
  .process__step { display: grid; grid-template-columns: 36px 1fr; gap: 0 18px; padding: 0; }
  .process__dot { grid-row: span 2; }
  .process__title, .process__desc { text-align: left; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 24px 20px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .cta-band { padding: 32px 22px; border-radius: var(--radius-l); }
  .page-head { padding: 60px 0 48px; }
  .drawer { width: 100%; }
  .hero__stats { margin-top: 48px; }
  .about-figure__card { position: static; margin-top: 16px; width: auto; }
  .table-wrap { overflow-x: auto; }
  .table { min-width: 620px; }
  .msg-card__meta { margin-left: 0; width: 100%; }
}

/* ---- 需求交付提示（静态托管模式） ---- */
.lead-handoff {
  border: 1px solid var(--brand-050);
  background: var(--brand-050);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.lead-handoff__hd { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; color: var(--ink); }
.lead-handoff__hd > svg { width: 18px; height: 18px; color: var(--brand); flex: none; }
.lead-handoff__hd > span { color: var(--ink-2); font-size: 14px; width: 100%; }
.lead-handoff__acts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.lead-handoff__acts .btn > svg { width: 15px; height: 15px; }
.lead-handoff__more { margin-top: 14px; }
.lead-handoff__more > summary {
  cursor: pointer; color: var(--brand); font-size: 14px; user-select: none; outline: none;
}
.lead-handoff__text {
  width: 100%; margin-top: 10px; padding: 12px 14px; resize: vertical;
  font: inherit; font-size: 13px; line-height: 1.7; color: var(--ink-2);
  border: 1px solid var(--line); border-radius: var(--radius-s); background: #fff;
}