/* =========================================================
   软迅云科技 官网 · 设计系统
    design tokens + components, modern SaaS, responsive
   ========================================================= */

:root {
  --brand: #1f6fff;
  --brand-d: #1446b5;
  --brand-dd: #0b2466;
  --accent: #14d5c3;
  --accent-d: #0f9188;

  --ink: #0c1424;
  --ink-2: #2c3650;
  --muted: #6b7689;
  --line: #e7ecf3;
  --line-2: #eef2f8;
  --bg: #ffffff;
  --bg-soft: #f4f7fd;
  --bg-soft-2: #eef3fc;
  --bg-dark: #07101f;
  --bg-deep: #081428;

  --grad-brand: linear-gradient(135deg, #1f6fff 0%, #14d5c3 100%);
  --grad-brand-d: linear-gradient(135deg, #0b2466 0%, #0f9188 100%);

  --radius: 14px;
  --radius-lg: 22px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(13, 28, 64, .06), 0 2px 8px rgba(13, 28, 64, .05);
  --shadow: 0 8px 24px rgba(15, 38, 92, .08);
  --shadow-lg: 0 24px 60px rgba(15, 38, 92, .14);
  --shadow-brand: 0 16px 40px rgba(19, 102, 255, .28);

  --container: 1180px;
  --header-h: 70px;

  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB",
    system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; padding: 0; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; letter-spacing: -.01em; }
section[id] { scroll-margin-top: calc(var(--header-h) + 16px); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 84px 0; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 15px;
  transition: transform .18s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap; cursor: pointer;
}
.btn svg { width: 18px; height: 18px; }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-lg { padding: 15px 30px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 20px 48px rgba(19, 102, 255, .38); }
.btn-ghost { background: rgba(19, 102, 255, .08); color: var(--brand-d); }
.btn-ghost:hover { background: rgba(19, 102, 255, .14); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--brand-d); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-outline:hover { box-shadow: inset 0 0 0 1.5px var(--brand); color: var(--brand); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--brand-d); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.link-arrow { color: var(--brand-d); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }
.link-arrow svg { width: 16px; height: 16px; transition: transform .2s ease; }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(7, 16, 31, .94); backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08); transition: box-shadow .2s, border-color .2s, background .2s;
}
.site-header.is-scrolled { background: rgba(7, 16, 31, .98); box-shadow: 0 12px 30px rgba(0,0,0,.22); border-color: rgba(255,255,255,.12); }
.header-inner { height: var(--header-h); display: flex; align-items: center; gap: 28px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 10px; overflow: hidden; box-shadow: 0 8px 20px rgba(31,111,255,.28); flex: none; }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand-text { display: flex; align-items: center; line-height: 1; min-width: max-content; }
.brand-text strong { display: inline-flex; align-items: baseline; gap: 8px; font-size: 19px; letter-spacing: .04em; color: #fff; white-space: nowrap; }
.brand-text em { font-style: normal; font-size: 10px; color: rgba(255,255,255,.58); letter-spacing: .16em; font-weight: 700; }

.main-nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.nav-link { padding: 8px 14px; border-radius: 8px; font-size: 15px; color: rgba(255,255,255,.74); font-weight: 500; transition: color .15s, background .15s; }
.nav-link:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-link.is-active { color: #fff; font-weight: 600; background: rgba(255,255,255,.1); }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.header-phone { display: inline-flex; align-items: center; gap: 6px; color: rgba(255,255,255,.82); font-weight: 600; font-size: 15px; }
.header-phone svg { width: 17px; height: 17px; color: var(--accent); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; color: #fff; }
.nav-toggle svg { width: 24px; height: 24px; margin: 0 auto; }

.mobile-drawer { display: none; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 86px 0 96px; color: #fff; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(7,16,31,.98) 0%, rgba(7,16,31,.9) 44%, rgba(7,16,31,.5) 100%),
    url("/static/img/dashboard-hero.jpg") center / cover no-repeat;
}
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(7,16,31,.18), rgba(7,16,31,.88)); }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 7px; padding: 6px 14px; border-radius: 999px;
  background: rgba(19, 102, 255, .09); color: var(--brand-d); font-size: 13.5px; font-weight: 600; margin-bottom: 20px;
}
.eyebrow svg { width: 16px; height: 16px; }
.eyebrow--dark { background: rgba(255, 255, 255, .16); color: #fff; }
.hero-title { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.12; letter-spacing: -.02em; color: #fff; }
.hero-sub { margin-top: 20px; font-size: 18px; color: rgba(255,255,255,.78); max-width: 560px; }
.hero-cta { margin-top: 32px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-points { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px 24px; }
.hero-points li { display: inline-flex; align-items: center; gap: 7px; color: rgba(255,255,255,.86); font-weight: 500; font-size: 14.5px; }
.hero-points svg { width: 18px; height: 18px; color: var(--accent); }

/* hero visual / mock window */
.hero-visual { position: relative; }
.hero-screen { border: 1px solid rgba(255,255,255,.18); border-radius: 18px; overflow: hidden; box-shadow: 0 26px 70px rgba(0,0,0,.42); background: rgba(255,255,255,.06); transform: perspective(1200px) rotateY(-5deg) rotateX(2deg); }
.hero-screen img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.mock-window { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.mock-bar { display: flex; align-items: center; gap: 7px; padding: 13px 16px; background: linear-gradient(180deg, #fbfcff, #f3f6fc); border-bottom: 1px solid var(--line-2); }
.mock-bar span { width: 11px; height: 11px; border-radius: 50%; background: #d7deea; }
.mock-bar span:nth-child(1) { background: #ff6058; } .mock-bar span:nth-child(2) { background: #ffbd2e; } .mock-bar span:nth-child(3) { background: #28c840; }
.mock-bar i { margin-left: 10px; font-style: normal; font-size: 12.5px; color: var(--muted); font-weight: 600; }
.mock-body { padding: 22px; background: linear-gradient(180deg, #ffffff, #fbfcff); }
.mock-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.mock-kpi { background: var(--bg-soft); border: 1px solid var(--line-2); border-radius: 12px; padding: 14px; }
.mock-kpi b { display: block; font-size: 22px; color: var(--brand-d); }
.mock-kpi small { color: var(--muted); font-size: 12px; }
.mock-chart { margin-top: 18px; height: 120px; display: flex; align-items: flex-end; gap: 10px; padding: 0 2px; }
.mock-chart span { flex: 1; height: var(--h); border-radius: 6px 6px 0 0; background: var(--grad-brand); opacity: .88; animation: growUp .9s ease both; }
.mock-chart span:nth-child(even) { background: linear-gradient(180deg, #8fb8ff, #c9defc); }
.mock-kanban { margin-top: 18px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; color: var(--ink-2); }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-left: 8px; }
.dot:first-child { margin-left: 0; }
.dot-blue { background: var(--brand); } .dot-cyan { background: var(--accent); } .dot-amber { background: #f5a623; }

.hero-badge-row { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.hero-badge {
  background: rgba(7,16,31,.62); border: 1px solid rgba(255,255,255,.22); border-radius: 999px;
  padding: 9px 13px; color: rgba(255,255,255,.9); box-shadow: 0 14px 34px rgba(0,0,0,.24);
  display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-weight: 700; backdrop-filter: blur(10px);
}
.hero-badge svg { width: 16px; height: 16px; color: var(--accent); flex: none; }
.hero-badge--custom { animation: floaty 4s ease-in-out infinite; }
.hero-badge--bs { animation: floaty 4.4s ease-in-out infinite .35s; }
.hero-badge--flow { animation: floaty 4.7s ease-in-out infinite .7s; }
.hero-badge--eff { animation: floaty 4.2s ease-in-out infinite 1s; }

@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes growUp { from { height: 0; opacity: 0; } }

/* ---------- industries strip ---------- */
.industries { border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); background: var(--bg-soft); }
.industries .container { display: flex; align-items: center; gap: 28px; padding-top: 22px; padding-bottom: 22px; flex-wrap: wrap; }
.industries-label { color: var(--muted); font-size: 13px; font-weight: 600; letter-spacing: .04em; }
.industries-list { display: flex; gap: 14px 30px; flex-wrap: wrap; }
.industries-list li { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-2); font-weight: 600; font-size: 15px; }
.industries-list svg { width: 20px; height: 20px; color: var(--brand); }

/* ---------- section head ---------- */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-eyebrow { display: inline-block; color: var(--brand-d); font-weight: 700; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px; }
.section-eyebrow--light { color: rgba(255,255,255,.9); display: inline-flex; align-items: center; gap: 6px; }
.section-eyebrow--light svg { width: 16px; height: 16px; }
.section-title { font-size: clamp(26px, 3.2vw, 38px); }
.section-desc { margin-top: 14px; font-size: 17px; color: var(--muted); }

/* ---------- stats ---------- */
.stats-section { background: var(--bg-soft); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card { background: #fff; border: 1px solid var(--line-2); border-radius: var(--radius); padding: 30px 24px; text-align: center; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.stat-num { font-size: 46px; font-weight: 800; line-height: 1; background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num i { font-style: normal; }
.stat-label { margin-top: 12px; color: var(--ink-2); font-weight: 600; }

/* ---------- products ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 28px;
  box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s, border-color .2s; position: relative; overflow: hidden;
}
.product-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--grad-brand); opacity: 0; transition: opacity .2s; }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.product-card:hover::before { opacity: 1; }
.product-icon { width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; color: #fff; margin-bottom: 18px; box-shadow: var(--shadow-brand); }
.product-icon svg { width: 28px; height: 28px; }
.icon-erp { background: linear-gradient(135deg, #1366ff, #4f8bff); }
.icon-ai { background: linear-gradient(135deg, #7a5cff, #00c2c7); box-shadow: 0 16px 40px rgba(122, 92, 255, .28); }
.icon-mes { background: linear-gradient(135deg, #00a3c4, #28c87a); box-shadow: 0 16px 40px rgba(0, 163, 196, .28); }
.product-name { font-size: 20px; }
.product-tagline { color: var(--brand-d); font-weight: 600; font-size: 14px; margin-top: 6px; }
.product-desc { color: var(--muted); margin-top: 12px; font-size: 14.5px; }
.product-features { margin-top: 18px; display: flex; flex-direction: column; gap: 9px; }
.product-features li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--ink-2); }
.product-features svg { width: 17px; height: 17px; color: var(--accent-d); flex: none; margin-top: 3px; }
.product-foot { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line-2); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.product-tech { font-size: 12px; color: var(--muted); }

/* product detail page */
.product-detail-list { background: linear-gradient(180deg, #fff, var(--bg-soft)); }
.product-detail { padding: 64px 0; border-bottom: 1px solid var(--line-2); }
.product-detail-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.product-detail.is-reverse .product-detail-visual { order: -1; }
.product-detail h2 { font-size: 30px; margin-top: 16px; }
.product-detail-tagline { color: var(--brand-d); font-weight: 600; margin-top: 8px; }
.product-detail-desc { color: var(--ink-2); margin-top: 14px; font-size: 16px; }
.product-features--2col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; margin-top: 22px; }
.product-detail-foot { margin-top: 26px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }

.mock-window--sm .mock-body--lines { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.ml { height: 13px; border-radius: 7px; background: var(--line); }
.ml-title { height: 18px; width: 50%; background: var(--grad-brand); opacity: .8; }
.ml-60 { width: 60%; } .ml-70 { width: 70%; } .ml-80 { width: 80%; }
.ml-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 6px 0; }
.ml-grid span { height: 54px; border-radius: 10px; background: var(--bg-soft-2); border: 1px solid var(--line-2); }

/* ---------- features ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature-card { background: #fff; border: 1px solid var(--line-2); border-radius: var(--radius); padding: 28px 26px; transition: transform .2s, box-shadow .2s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon { width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center; background: rgba(19,102,255,.09); color: var(--brand-d); margin-bottom: 16px; }
.feature-icon svg { width: 25px; height: 25px; }
.feature-card h3 { font-size: 18px; }
.feature-card p { color: var(--muted); margin-top: 10px; font-size: 14.5px; }

/* ---------- capabilities ---------- */
.capability-section { background: linear-gradient(180deg, #fff, var(--bg-soft)); }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.capability-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.capability-card h3 { font-size: 18px; }
.capability-card p { margin-top: 10px; color: var(--muted); font-size: 14.5px; }
.capability-card ul { margin-top: 18px; display: flex; flex-direction: column; gap: 9px; }
.capability-card li { display: flex; gap: 8px; align-items: flex-start; color: var(--ink-2); font-size: 13.5px; }
.capability-card svg { width: 16px; height: 16px; color: var(--accent-d); flex: none; margin-top: 3px; }

/* ---------- visual proof ---------- */
.visual-proof-section { background: var(--bg-deep); color: #fff; }
.visual-proof-section--alt { background: linear-gradient(180deg, #081428, #07101f); padding-top: 0; }
.visual-proof-section .section-title { color: #fff; }
.visual-proof-section .section-eyebrow { color: var(--accent); }
.proof-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.proof-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); overflow: hidden; box-shadow: 0 18px 50px rgba(0,0,0,.22); }
.proof-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #fff; }
.proof-card div { padding: 20px 22px 22px; }
.proof-card h3 { font-size: 18px; color: #fff; }
.proof-card p { margin-top: 8px; color: rgba(255,255,255,.72); font-size: 14.5px; }

/* ---------- product scenes ---------- */
.product-scenes-section { background: #fff; }
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scene-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.scene-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--bg-soft); border-bottom: 1px solid var(--line-2); }
.scene-copy { padding: 20px 22px 22px; }
.scene-copy span { display: inline-block; padding: 4px 10px; border-radius: 999px; background: rgba(31,111,255,.09); color: var(--brand-d); font-size: 12px; font-weight: 700; }
.scene-copy h3 { margin-top: 12px; font-size: 18px; }
.scene-copy p { margin-top: 8px; color: var(--muted); font-size: 14.5px; }
.scene-grid--dark { grid-template-columns: repeat(2, 1fr); align-items: stretch; }
.scene-card--dark { position: relative; background: linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.035)); border-color: rgba(255,255,255,.14); box-shadow: 0 18px 50px rgba(0,0,0,.22); }
.scene-card--dark:first-child { grid-column: 1 / -1; }
.scene-card--dark:first-child img { aspect-ratio: 21 / 9; }
.scene-card--dark::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, var(--brand), var(--accent)); opacity: .8; }
.scene-media { padding: 14px 14px 0; }
.scene-card--dark img { border: 1px solid rgba(255,255,255,.12); border-radius: 10px; background: #fff; box-shadow: 0 12px 34px rgba(0,0,0,.22); }
.scene-card--dark .scene-copy { padding: 18px 22px 22px; }
.scene-card--dark .scene-copy span { background: rgba(20,213,195,.13); color: var(--accent); letter-spacing: .04em; }
.scene-card--dark .scene-copy h3 { color: #fff; }
.scene-card--dark .scene-copy p { color: rgba(255,255,255,.72); }

/* ---------- AI section ---------- */
.ai-section { background: radial-gradient(900px 500px at 80% 10%, rgba(0,194,199,.25), transparent 60%), linear-gradient(135deg, #0a1230 0%, #102a6b 60%, #0c3f7a 100%); color: #fff; }
.ai-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.ai-copy h2 { font-size: clamp(26px, 3.2vw, 36px); margin-top: 14px; }
.ai-copy > p { color: rgba(255,255,255,.78); margin-top: 16px; font-size: 16.5px; }
.ai-copy strong { color: #fff; }
.ai-list { margin: 24px 0 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ai-list li { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.92); font-weight: 500; font-size: 15px; }
.ai-list svg { width: 20px; height: 20px; color: var(--accent); flex: none; }

.ai-visual { display: flex; justify-content: center; }
.chat-card { width: 100%; max-width: 420px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius-lg); padding: 22px; backdrop-filter: blur(8px); box-shadow: var(--shadow-lg); }
.chat-q { background: var(--grad-brand); color: #fff; padding: 12px 16px; border-radius: 14px 14px 4px 14px; font-size: 14.5px; margin-left: auto; max-width: 80%; width: fit-content; }
.chat-a { margin-top: 16px; background: #fff; color: var(--ink); border-radius: 4px 14px 14px 14px; padding: 16px; }
.chat-a-title { display: flex; align-items: center; gap: 7px; font-weight: 700; font-size: 14px; color: var(--brand-d); margin-bottom: 12px; }
.chat-a-title svg { width: 17px; height: 17px; }
.chat-row { display: grid; grid-template-columns: 72px 1fr auto; align-items: center; gap: 10px; margin-bottom: 9px; font-size: 13px; }
.chat-row span { color: var(--ink-2); }
.chat-row i { height: 9px; border-radius: 6px; background: var(--grad-brand); width: var(--w); display: block; animation: growW .9s ease both; }
.chat-row b { color: var(--brand-d); font-size: 13px; }
@keyframes growW { from { width: 0; } }

/* ---------- solutions ---------- */
.solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.solution-grid--lg { grid-template-columns: repeat(2, 1fr); gap: 24px; }
.solution-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; transition: transform .2s, box-shadow .2s; }
.solution-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.solution-icon { width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center; background: var(--grad-brand); color: #fff; margin-bottom: 16px; }
.solution-icon svg { width: 25px; height: 25px; }
.solution-card h3 { font-size: 18px; }
.solution-card p { color: var(--muted); margin-top: 10px; font-size: 14.5px; }
.solution-card ul { margin-top: 14px; display: flex; flex-direction: column; gap: 7px; }
.solution-card li { display: flex; align-items: center; gap: 7px; font-size: 13.5px; color: var(--ink-2); }
.solution-card svg { width: 16px; height: 16px; color: var(--accent-d); flex: none; }

/* ---------- flow ---------- */
.flow-section { background: var(--bg-soft); }
.flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.flow-steps li { background: #fff; border: 1px solid var(--line-2); border-radius: var(--radius); padding: 26px 22px; position: relative; }
.flow-no { font-size: 30px; font-weight: 800; color: rgba(19,102,255,.18); }
.flow-steps h4 { margin-top: 6px; font-size: 17px; }
.flow-steps p { margin-top: 8px; color: var(--muted); font-size: 14px; }

/* ---------- cases ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.case-tag { display: inline-block; padding: 5px 12px; border-radius: 999px; background: rgba(0,194,199,.12); color: var(--accent-d); font-size: 13px; font-weight: 700; }
.case-card h3 { margin-top: 14px; font-size: 21px; }
.case-card p { color: var(--muted); margin-top: 10px; }
.case-metrics { margin-top: 20px; display: flex; gap: 30px; }
.case-metrics b { display: block; font-size: 28px; color: var(--brand-d); font-weight: 800; }
.case-metrics small { color: var(--muted); font-size: 13px; }
.case-note { margin-top: 28px; color: var(--muted); font-size: 13px; text-align: center; }

/* ---------- page hero (inner) ---------- */
.page-hero { background: radial-gradient(700px 360px at 85% 0%, rgba(0,194,199,.4), transparent 55%), linear-gradient(135deg, #0b3db0, #1366ff); color: #fff; padding: 64px 0; }
.page-hero h1 { font-size: clamp(28px, 3.6vw, 42px); margin-top: 8px; }
.page-hero p { margin-top: 14px; font-size: 17px; color: rgba(255,255,255,.85); max-width: 680px; }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 1.4fr .9fr; gap: 44px; align-items: start; }
.about-copy h2 { font-size: 24px; margin: 30px 0 12px; }
.about-copy h2:first-child { margin-top: 0; }
.about-copy p { color: var(--ink-2); margin-bottom: 14px; }
.about-values { display: flex; flex-direction: column; gap: 12px; }
.about-values li { background: var(--bg-soft); border: 1px solid var(--line-2); border-radius: 12px; padding: 14px 18px; color: var(--ink-2); }
.about-values span { display: inline-block; font-weight: 700; color: var(--brand-d); margin-right: 10px; }
.about-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow); position: sticky; top: calc(var(--header-h) + 20px); }
.about-card h3 { font-size: 19px; margin-bottom: 16px; }
.about-info { display: flex; flex-direction: column; gap: 14px; margin-bottom: 22px; }
.about-info div { display: flex; flex-direction: column; gap: 2px; }
.about-info dt { font-size: 12.5px; color: var(--muted); }
.about-info dd { font-weight: 600; color: var(--ink); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.3fr .8fr; gap: 40px; align-items: start; }
.contact-form-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow); }
.lead-form .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.field label i { color: #ff5b5b; font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px;
  font-family: inherit; font-size: 15px; color: var(--ink); background: #fff; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(19,102,255,.12); }
.field textarea { resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-tip { margin-top: 12px; font-size: 14px; font-weight: 600; min-height: 20px; }
.form-tip.is-ok { color: #1a9d5a; } .form-tip.is-err { color: #e0473e; }
.form-note { margin-top: 10px; font-size: 12.5px; color: var(--muted); }

.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; align-items: flex-start; gap: 14px; }
.contact-ic { width: 46px; height: 46px; border-radius: 12px; background: rgba(19,102,255,.09); color: var(--brand-d); display: grid; place-items: center; flex: none; }
.contact-ic svg { width: 22px; height: 22px; }
.contact-item h4 { font-size: 14px; color: var(--muted); font-weight: 600; }
.contact-item div > a, .contact-item div > span { font-size: 16px; font-weight: 600; color: var(--ink); }
.contact-qr { margin-top: 6px; text-align: center; }
.contact-qr p { color: var(--muted); font-size: 13px; margin-top: 8px; }
.qr-box { display: grid; place-items: center; background: #fff; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); font-size: 12px; text-align: center; overflow: hidden; padding: 6px; }
.qr-box img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
.qr-box--lg { width: 150px; height: 150px; margin: 0 auto; }

/* ---------- CTA band ---------- */
.cta-band { background: radial-gradient(800px 420px at 82% 10%, rgba(20,213,195,.22), transparent 60%), linear-gradient(135deg, #07101f, #0b2466 72%, #0f9188); color: #fff; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 56px 0; flex-wrap: wrap; }
.cta-text h2 { font-size: clamp(24px, 3vw, 34px); }
.cta-text p { margin-top: 12px; color: rgba(255,255,255,.85); max-width: 560px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-band .btn-outline { color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.5); }
.cta-band .btn-outline:hover { box-shadow: inset 0 0 0 1.5px #fff; color: #fff; background: rgba(255,255,255,.1); }

/* ---------- footer ---------- */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,.7); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; padding: 60px 0 40px; }
.brand--footer .brand-text strong { color: #fff; } .brand--footer .brand-text em { color: rgba(255,255,255,.5); }
.footer-desc { margin-top: 16px; font-size: 14px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,.66); font-size: 14px; padding: 5px 0; transition: color .15s; }
.footer-col a:hover { color: var(--accent); }
.footer-contact p { display: flex; align-items: center; gap: 9px; font-size: 14px; margin-bottom: 11px; }
.footer-contact svg { width: 17px; height: 17px; color: var(--accent); flex: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 20px 0; font-size: 13px; color: rgba(255,255,255,.5); flex-wrap: wrap; }
.footer-icp a:hover { color: var(--accent); }

/* ---------- floating ---------- */
.floating { position: fixed; right: 20px; bottom: 26px; z-index: 40; display: flex; flex-direction: column; gap: 12px; }
.float-btn { position: relative; width: 50px; height: 50px; border-radius: 14px; background: #fff; box-shadow: var(--shadow-lg); color: var(--brand-d); display: grid; place-items: center; transition: transform .18s, background .18s, color .18s; }
.float-btn svg { width: 24px; height: 24px; }
.float-btn:hover { transform: translateY(-3px); background: var(--grad-brand); color: #fff; }
.float-demo { background: var(--grad-brand); color: #fff; }
.float-tip {
  position: absolute; right: 64px; top: 50%; transform: translateY(-50%) translateX(8px); opacity: 0; pointer-events: none;
  background: #fff; color: var(--ink); padding: 10px 14px; border-radius: 10px; box-shadow: var(--shadow-lg);
  font-size: 13px; font-weight: 600; white-space: nowrap; transition: opacity .18s, transform .18s; text-align: center;
}
.float-btn:hover .float-tip, .float-btn:focus .float-tip, .float-btn:focus-within .float-tip { opacity: 1; transform: translateY(-50%) translateX(0); }
.float-tip--qr { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.float-tip--qr .qr-box { width: 120px; height: 120px; }
.float-top[hidden] { display: none; }

/* ---------- status pages ---------- */
.status-page { min-height: 56vh; display: grid; place-items: center; text-align: center; background: var(--bg-soft); }
.status-inner { max-width: 540px; }
.status-icon { width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 24px; font-size: 30px; font-weight: 800; }
.status-ok { background: rgba(26,157,90,.12); color: #1a9d5a; } .status-ok svg { width: 44px; height: 44px; }
.status-err { background: rgba(19,102,255,.1); color: var(--brand-d); }
.status-page h1 { font-size: 30px; } .status-page p { color: var(--muted); margin-top: 14px; font-size: 16px; }
.status-actions { margin-top: 28px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero-inner, .ai-inner, .product-detail-inner, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 620px; margin: 0 auto; }
  .hero-screen { transform: none; }
  .product-detail.is-reverse .product-detail-visual { order: 0; }
  .product-grid, .feature-grid, .solution-grid, .flow-steps, .capability-grid, .proof-grid, .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-list, .product-features--2col { grid-template-columns: 1fr; }
  .about-card { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 720px) {
  .section { padding: 60px 0; }
  .main-nav, .header-phone { display: none; }
  .nav-toggle { display: grid; }
  .mobile-drawer { display: block; position: fixed; inset: var(--header-h) 0 auto 0; background: #07101f; border-bottom: 1px solid rgba(255,255,255,.1); box-shadow: var(--shadow-lg); padding: 16px 24px 24px; transform: translateY(-12px); opacity: 0; transition: transform .22s, opacity .22s; }
  .mobile-drawer:not([hidden]) { transform: none; opacity: 1; }
  .mobile-nav { display: flex; flex-direction: column; gap: 4px; }
  .mobile-nav a { padding: 13px 8px; font-size: 16px; font-weight: 600; border-bottom: 1px solid rgba(255,255,255,.08); color: rgba(255,255,255,.78); }
  .mobile-nav a.is-active { color: #fff; }
  .mobile-nav .btn { margin-top: 14px; }
  .product-grid, .feature-grid, .solution-grid, .solution-grid--lg, .flow-steps, .case-grid, .stats-grid, .capability-grid, .proof-grid, .scene-grid { grid-template-columns: 1fr; }
  .lead-form .field-row { grid-template-columns: 1fr; gap: 0; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .floating { right: 14px; bottom: 16px; }
  .float-tip { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}