/* 云磐信息 CLOUD STONE · 2026-10-28 版（以 B 版明亮企业蓝为基线，按客户建议重组：浅灰底 + 白卡片、主色只做信号） */
:root {
  --blue: #1D78FA;          /* 信号色：主 CTA、关键数据、交互态 */
  --blue-h: #1366DD;
  --navy: #0B3A82;
  --navy-2: #1E5BAA;
  --ink: #18233F;
  --deep: #232C49;          /* 深海军蓝：转化区、页脚 */
  --muted: #5A6A86;
  --muted-2: #8190A8;
  --bg: #F5F7FA;            /* 浅灰底 */
  --bg-2: #EEF2F7;
  --chip: #F1F4F8;
  --line: #E3E8F0;
  --line-2: #D5DDEA;
  --soft-blue: #EAF2FE;
  --white: #fff;
  --r: 16px;
  --r-sm: 10px;
  --shadow: 0 1px 2px rgba(24,35,63,.04), 0 8px 24px -12px rgba(24,35,63,.12);
  --shadow-h: 0 2px 4px rgba(24,35,63,.04), 0 20px 40px -18px rgba(11,58,130,.25);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --din: "DIN Alternate", Bahnschrift, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(.2, .7, .2, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--sans); color: var(--ink); background: var(--white); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
.wrap { width: min(1200px, 100% - 64px); margin-inline: auto; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.86); backdrop-filter: saturate(1.6) blur(14px); -webkit-backdrop-filter: saturate(1.6) blur(14px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; transition: height .3s var(--ease); }
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand img { width: 48px; height: auto; }
.brand-txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand-txt b { font-size: 17px; letter-spacing: .08em; color: var(--ink); }
.brand-txt small { font-family: var(--din); font-size: 10.5px; letter-spacing: .28em; color: var(--navy-2); font-weight: 700; }
.menu { display: flex; gap: 4px; }
.menu a { position: relative; padding: 8px 14px; font-size: 15px; color: #33415F; border-radius: 8px; transition: color .2s, background .2s; }
.menu a:hover { color: var(--blue); background: var(--bg); }
.menu a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.menu a[aria-current="page"]::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 0; height: 2px; background: var(--blue); border-radius: 2px; }
.nav-tools { display: flex; align-items: center; gap: 12px; }
.nav-tel { font-family: var(--din); font-size: 15px; color: var(--navy); font-weight: 700; letter-spacing: .02em; }
.nav-tel:hover { color: var(--blue); }
.burger { display: none; width: 40px; height: 40px; border: 1px solid var(--line-2); border-radius: 10px; background: #fff; cursor: pointer; position: relative; }
.burger i { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--ink); transition: transform .3s; }
.burger i:first-child { top: 15px; } .burger i:last-child { top: 23px; }
.burger[aria-expanded="true"] i:first-child { transform: translateY(4px) rotate(45deg); }
.burger[aria-expanded="true"] i:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- buttons & links ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 50px; padding: 0 28px; border-radius: 999px; background: var(--blue); color: #fff; font-weight: 600; font-size: 15.5px; border: 1px solid var(--blue); cursor: pointer; box-shadow: 0 12px 28px -12px rgba(29,120,250,.7); transition: background .2s, box-shadow .2s, color .2s; }
.btn:hover { background: var(--blue-h); box-shadow: 0 16px 34px -12px rgba(29,120,250,.85); }
.btn-line { display: inline-flex; align-items: center; height: 38px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--ink); font-size: 14px; font-weight: 600; background: #fff; transition: border-color .2s, color .2s; }
.btn-line:hover { border-color: var(--blue); color: var(--blue); }
.btn-block { width: 100%; }
.tlink { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--navy); font-size: 15px; }
.tlink::after { content: "→"; transition: transform .25s var(--ease); }
.tlink:hover { color: var(--blue); }
.tlink:hover::after { transform: translateX(3px); }

/* ---------- hero (保留 B 版插画与动效) ---------- */
.hero { position: relative; overflow: hidden; isolation: isolate; padding: 24px 0 28px; min-height: min(calc(100vh - 72px), 700px); display: flex; align-items: center; }
.hero-bg { position: absolute; inset: 0; z-index: -1; background:
  radial-gradient(900px 520px at 72% 46%, rgba(255,255,255,.95), rgba(255,255,255,0) 70%),
  radial-gradient(700px 500px at 10% 0%, rgba(220,233,253,.9), transparent 70%),
  linear-gradient(180deg, #F6F8FF 0%, #ECF2FD 70%, #F5F7FA 100%); }
.hero-bg::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(29,120,250,.14) 1px, transparent 1.4px); background-size: 22px 22px; -webkit-mask-image: radial-gradient(70% 60% at 30% 10%, #000, transparent 75%); mask-image: radial-gradient(70% 60% at 30% 10%, #000, transparent 75%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 24px; align-items: center; width: min(1320px, 100% - 64px); }
.hero-copy { position: relative; z-index: 2; padding: 20px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; letter-spacing: .12em; color: var(--navy-2); font-weight: 600; padding: 6px 14px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(255,255,255,.75); }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 4px rgba(29,120,250,.18); }
.hero h1 { margin-top: 24px; font-size: clamp(32px, 3.6vw, 52px); line-height: 1.25; font-weight: 700; letter-spacing: .01em; color: var(--ink); }
.hero h1 em { font-style: normal; color: var(--navy); }
.hero .lead { margin-top: 22px; max-width: 32em; color: var(--muted); font-size: 17px; line-height: 1.85; }
.hero .lead b { color: var(--ink); font-weight: 600; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; margin-top: 34px; }
.hero-links { display: flex; gap: 22px; flex-wrap: wrap; }

.hero-stage { position: relative; height: min(76vh, 660px); min-height: 520px; display: flex; flex-direction: column; cursor: pointer; touch-action: pan-y; }
.stage-cv { position: relative; display: block; width: 100%; flex: 1 1 0; min-height: 0; }
.stage-fallback { width: 90%; margin: auto; object-fit: contain; }
/* 场景说明：一行纯文字，不再用白框 */
.stage-cap { align-self: center; display: flex; align-items: center; gap: 10px; min-height: 28px; margin: 0 0 6px; font-size: 13.5px; color: var(--muted); white-space: nowrap; pointer-events: none; max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
.stage-cap b { color: var(--navy); font-weight: 700; }
.stage-cap .sep { width: 1px; height: 12px; background: var(--line-2); }
.stage-cap.flip > * { animation: fadeUp .5s var(--ease) both; }
.ping { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); position: relative; flex: none; }
.ping::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 1px solid var(--blue); animation: ping 1.8s ease-out infinite; }
@keyframes ping { from { transform: scale(.5); opacity: 1; } to { transform: scale(1.8); opacity: 0; } }

/* ---------- sections ---------- */
.sec { padding: clamp(72px, 8vw, 112px) 0; position: relative; }
.sec-gray { background: var(--bg); }
.sec-head { max-width: 720px; }
.kicker { font-family: var(--din); font-size: 12.5px; font-weight: 700; letter-spacing: .2em; color: var(--muted-2); text-transform: uppercase; }
.sec-head h2 { margin-top: 10px; font-size: clamp(26px, 2.6vw, 36px); line-height: 1.3; font-weight: 700; color: var(--ink); letter-spacing: .01em; }
.sec-lead { margin-top: 14px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.sec-head-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px 40px; flex-wrap: wrap; max-width: none; }
.sec-head-row > div { max-width: 720px; }
.body { color: #3D4B67; font-size: 16px; line-height: 1.9; margin-top: 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-size: 13px; padding: 4px 11px; border-radius: 8px; background: var(--chip); color: #3A4865; }

/* ---------- 业务入口卡片 ---------- */
.biz-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 44px; }
.bcard { position: relative; display: flex; flex-direction: column; padding: 28px 28px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); transition: border-color .3s, box-shadow .35s, opacity .35s, filter .35s; }
.bcard:hover { border-color: rgba(29,120,250,.45); box-shadow: var(--shadow-h); }
.bcard-top { display: flex; justify-content: space-between; align-items: center; }
.bcard-top svg { width: 44px; height: 44px; padding: 9px; border-radius: 12px; background: var(--bg); color: var(--navy-2); box-sizing: border-box; transition: color .3s, background .3s; }
.bcard:hover .bcard-top svg { color: var(--blue); background: var(--soft-blue); }
.phase { font-size: 12px; color: var(--muted); padding: 3px 10px; border-radius: 999px; border: 1px solid var(--line); letter-spacing: .06em; }
.bcard h3 { margin-top: 20px; font-size: 21px; color: var(--ink); letter-spacing: .02em; display: flex; align-items: baseline; gap: 10px; }
.bcard h3 small { font-family: var(--din); font-size: 11.5px; font-weight: 700; letter-spacing: .16em; color: var(--muted-2); text-transform: uppercase; }
.bcard .value { margin-top: 10px; font-size: 15px; color: var(--muted); line-height: 1.75; min-height: 3.5em; }
.bcard .chips { margin-top: 18px; }
.bcard .tlink { margin-top: auto; padding-top: 22px; font-size: 14.5px; }
.bcard-ask { background: linear-gradient(160deg, #F7FAFF, var(--soft-blue)); border-color: #D3E3FB; }
.bcard-ask .phase { border-color: #C8DAF7; color: var(--navy-2); }
.bcard-ask .tlink { color: var(--blue); }
@media (hover: hover) {
  .biz-cards:has(.bcard:hover) .bcard:not(:hover) { opacity: .62; filter: grayscale(.6); }
  .partner-grid:has(li:hover) li:not(:hover) { opacity: .45; }
}

/* ---------- 信任条 ---------- */
.trust { padding: clamp(56px, 6vw, 84px) 0; background: #fff; }
.trust-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; }
.trust-stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
.trust-stats > div { padding: 24px 26px; }
.trust-stats > div + div { border-left: 1px solid var(--line); }
.trust-stats b { display: block; font-family: var(--din); font-size: clamp(34px, 3.4vw, 46px); line-height: 1; color: var(--blue); font-weight: 800; }
.trust-stats b i { font-style: normal; font-size: .6em; margin-left: 2px; }
.trust-stats span { display: block; margin-top: 10px; font-size: 14px; color: var(--muted); }
.trust-row { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; }
.trust-box { padding: 24px 26px; background: var(--bg); border-radius: var(--r); }
.trust-box h3 { font-size: 15px; color: var(--ink); display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.trust-box h3 .tlink { font-size: 13.5px; font-weight: 600; }
.badges { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 16px; }
.badge { display: flex; align-items: center; gap: 10px; padding: 12px 14px; background: #fff; border-radius: var(--r-sm); border: 1px solid var(--line); }
.badge svg { width: 30px; height: 30px; flex: none; color: var(--navy-2); }
.badge b { display: block; font-size: 14px; color: var(--ink); line-height: 1.35; }
.badge span { display: block; font-size: 12px; color: var(--muted); }
.partner-mini { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 10px; margin-top: 16px; }
.partner-mini li { padding: 12px 14px; background: #fff; border-radius: var(--r-sm); border: 1px solid var(--line); }
.partner-mini b { display: block; font-size: 15px; color: var(--ink); }
.partner-mini span { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ---------- 精选案例 ---------- */
.case-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 44px; }
.ccard { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; box-shadow: var(--shadow); transition: border-color .3s, box-shadow .35s; }
.ccard:hover { border-color: rgba(29,120,250,.45); box-shadow: var(--shadow-h); }
.ccard-media { position: relative; margin: 0; height: 168px; overflow: hidden; background: var(--bg-2); }
.ccard-media img { width: 100%; height: 100%; object-fit: cover; transition: scale 1.2s var(--ease); }
.ccard:hover .ccard-media img { scale: 1.05; }
.ccard-media figcaption { position: absolute; left: 14px; top: 14px; font-size: 12.5px; font-weight: 600; color: var(--navy); background: rgba(255,255,255,.92); padding: 4px 11px; border-radius: 999px; }
.ccard-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.ccard h3 { font-size: 17px; color: var(--ink); line-height: 1.45; }
.ccard .what { margin-top: 4px; font-size: 14px; color: var(--muted); }
.metric { margin-top: 18px; padding: 14px 16px; border-radius: var(--r-sm); background: var(--bg); display: flex; gap: 14px; align-items: center; }
.metric b { font-family: var(--din); font-size: 34px; line-height: 1; color: var(--blue); font-weight: 800; white-space: nowrap; }
.metric b small { font-size: .5em; margin-left: 2px; font-family: var(--sans); font-weight: 700; }
.metric span { font-size: 13.5px; color: #3D4B67; line-height: 1.55; }
.metric em { display: block; font-style: normal; font-size: 11.5px; color: var(--muted-2); margin-top: 2px; }
.how { margin-top: 18px; }
.how p { font-size: 12.5px; font-weight: 700; color: var(--muted-2); letter-spacing: .12em; }
.how ol { margin-top: 10px; display: grid; gap: 0; counter-reset: step; }
.how li { position: relative; padding: 0 0 12px 30px; font-size: 14px; color: #3D4B67; line-height: 1.6; counter-increment: step; }
.how li::before { content: counter(step); position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--line-2); font-family: var(--din); font-size: 11.5px; font-weight: 700; color: var(--navy-2); display: grid; place-items: center; background: #fff; }
.how li::after { content: ""; position: absolute; left: 10px; top: 23px; bottom: 2px; width: 1px; background: var(--line); }
.how li:last-child { padding-bottom: 0; }
.how li:last-child::after { display: none; }
.how li b { color: var(--ink); font-weight: 600; }
.sec-foot { margin-top: 28px; display: flex; justify-content: center; }

/* ---------- 交付标准与流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin-top: 44px; position: relative; }
.step { position: relative; padding: 26px 24px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); }
.step-no { display: flex; align-items: center; gap: 10px; }
.step-no em { font-style: normal; font-family: var(--din); font-weight: 800; font-size: 13px; color: #fff; background: var(--navy); width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; }
.step-no span { font-size: 12px; color: var(--muted-2); letter-spacing: .14em; font-family: var(--din); font-weight: 700; }
.step:not(:last-child)::after { content: ""; position: absolute; right: -14px; top: 40px; width: 8px; height: 8px; border-top: 1.5px solid var(--line-2); border-right: 1.5px solid var(--line-2); transform: rotate(45deg); }
.step h3 { margin-top: 16px; font-size: 19px; color: var(--ink); }
.step .do { margin-top: 8px; font-size: 14.5px; color: var(--muted); line-height: 1.7; min-height: 3.4em; }
.step .get { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line-2); }
.step .get p { font-size: 12.5px; color: var(--muted-2); font-weight: 700; letter-spacing: .1em; }
.step .get li { position: relative; padding-left: 14px; margin-top: 6px; font-size: 14px; color: #3D4B67; }
.step .get li::before { content: ""; position: absolute; left: 0; top: .72em; width: 6px; height: 6px; border-radius: 2px; background: var(--line-2); }
.loop-note { margin-top: 16px; display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.loop-note svg { width: 18px; height: 18px; color: var(--navy-2); flex: none; }
.standards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin-top: 36px; }
.standards li { padding: 20px 22px; border-radius: var(--r); background: var(--bg-2); }
.standards b { display: block; font-size: 15.5px; color: var(--ink); }
.standards span { display: block; margin-top: 6px; font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ---------- 底部转化区（深海军蓝） ---------- */
.cta-band { position: relative; overflow: hidden; isolation: isolate; padding: clamp(64px, 7vw, 96px) 0; background: linear-gradient(135deg, var(--deep) 0%, #1B2D5E 60%, var(--navy) 120%); color: #fff; }
.cta-band::before { content: ""; position: absolute; inset: 0; z-index: -1; background-image: radial-gradient(rgba(159,199,251,.18) 1px, transparent 1.4px); background-size: 22px 22px; -webkit-mask-image: radial-gradient(60% 80% at 85% 20%, #000, transparent 75%); mask-image: radial-gradient(60% 80% at 85% 20%, #000, transparent 75%); }
.cta-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.cta-band .kicker { color: #9FB3D6; }
.cta-band h2 { margin-top: 10px; font-size: clamp(26px, 2.8vw, 38px); line-height: 1.3; }
.cta-band p.sub { margin-top: 14px; color: #C3CEE4; font-size: 16px; line-height: 1.8; max-width: 32em; }
.cta-side { justify-self: end; display: grid; gap: 18px; justify-items: start; }
.cta-contact { display: grid; gap: 6px; font-size: 15px; color: #C3CEE4; }
.cta-contact a { color: #fff; font-weight: 600; }
.cta-contact a:hover { color: #9FC7FB; }

/* ---------- 内页首屏（轻量变体） ---------- */
.page-hero { position: relative; overflow: hidden; isolation: isolate; padding: clamp(56px, 7vw, 96px) 0 clamp(48px, 5vw, 72px); }
.page-hero .hero-bg { background: radial-gradient(700px 400px at 85% 30%, rgba(255,255,255,.9), transparent 70%), linear-gradient(180deg, #F6F8FF 0%, #ECF2FD 70%, #F5F7FA 100%); }
.page-hero .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 40px; align-items: center; }
.crumb { font-size: 13px; color: var(--muted); }
.crumb a:hover { color: var(--blue); }
.page-hero h1 { margin-top: 14px; font-size: clamp(32px, 3.6vw, 48px); line-height: 1.25; color: var(--ink); }
.page-hero .lead { margin-top: 16px; color: var(--muted); font-size: 17px; line-height: 1.85; max-width: 34em; }
.ph-art { position: relative; height: 240px; }
.ph-art canvas { width: 100%; height: 100%; display: block; }
.page-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.page-nav a { font-size: 13.5px; padding: 6px 14px; border-radius: 999px; background: rgba(255,255,255,.8); border: 1px solid var(--line-2); color: #33415F; transition: color .2s, border-color .2s; }
.page-nav a:hover { color: var(--blue); border-color: var(--blue); }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.motto { display: flex; align-items: center; gap: 18px; margin-top: 30px; font-size: clamp(20px, 2.2vw, 26px); font-weight: 600; letter-spacing: .3em; color: var(--ink); }
.motto i { width: 44px; height: 1px; background: var(--blue); }
.about-media { position: relative; margin: 0; border-radius: 20px; overflow: hidden; aspect-ratio: 4 / 4.4; max-height: 520px; box-shadow: var(--shadow); }
.about-media > img { width: 100%; height: 100%; object-fit: cover; }
.about-media figcaption { position: absolute; left: 16px; right: 16px; bottom: 16px; display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px; background: rgba(255,255,255,.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 14px; color: var(--ink); font-weight: 600; }
.stats5 { display: grid; grid-template-columns: repeat(5, 1fr); margin-top: 56px; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
.stats5 > div { padding: 24px 22px; }
.stats5 > div + div { border-left: 1px solid var(--line); }
.stats5 b { display: block; font-family: var(--din); font-size: clamp(34px, 3.4vw, 46px); line-height: 1; color: var(--blue); font-weight: 800; }
.stats5 b i { font-style: normal; font-size: .6em; margin-left: 2px; }
.stats5 span { display: block; margin-top: 10px; font-size: 13.5px; color: var(--muted); line-height: 1.6; }
.culture { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
.cul { position: relative; padding: 26px 24px 26px; }
.cul svg { width: 36px; height: 36px; color: var(--navy-2); }
.cul h3 { margin-top: 16px; font-size: 18px; color: var(--ink); }
.cul h3 small { font-family: var(--din); font-size: 11.5px; letter-spacing: .14em; color: var(--muted-2); margin-left: 6px; text-transform: uppercase; font-weight: 700; }
.cul p { margin-top: 8px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.sol-tags { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 32px; }
.sol-tags li { display: flex; align-items: center; gap: 12px; padding: 16px 18px; background: #fff; border: 1px solid var(--line); border-radius: 12px; font-weight: 600; font-size: 15px; color: var(--ink); }
.sol-tags i { font-style: normal; font-family: var(--din); font-size: 12px; color: var(--navy-2); background: var(--bg); border-radius: 6px; padding: 2px 7px; }

/* timeline */
.history { overflow: hidden; }
.timeline { position: relative; margin-top: 48px; }
.tl-svg { position: absolute; left: 0; top: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.tl-base { fill: none; stroke: rgba(29,120,250,.14); stroke-width: 4; stroke-linecap: round; }
.tl-line { fill: none; stroke: var(--blue); stroke-width: 4; stroke-linecap: round; }
.timeline ol { position: relative; display: grid; gap: 20px; }
.tl-item { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 0 96px; }
.tl-dot { position: absolute; left: 50%; top: 30px; width: 18px; height: 18px; margin-left: -9px; border-radius: 50%; background: #fff; border: 3px solid #BFD5F7; z-index: 2; transition: border-color .4s, box-shadow .4s, transform .4s var(--ease); }
.tl-item.lit .tl-dot { border-color: var(--blue); box-shadow: 0 0 0 7px rgba(29,120,250,.16); transform: scale(1.15); }
.tl-card { padding: 22px 26px; }
.tl-item:nth-child(odd) .tl-card { grid-column: 1; }
.tl-item:nth-child(even) .tl-card { grid-column: 2; }
.tl-year { display: inline-block; font-family: var(--din); font-weight: 800; font-size: 28px; line-height: 1.1; color: var(--ink); }
.tl-stage { display: inline-block; margin-left: 12px; font-weight: 700; color: var(--navy-2); letter-spacing: .1em; font-size: 14px; }
.tl-card ul { margin-top: 10px; }
.tl-card li { position: relative; padding-left: 14px; font-size: 14.5px; color: #3D4B67; line-height: 1.8; }
.tl-card li::before { content: ""; position: absolute; left: 0; top: .78em; width: 5px; height: 5px; border-radius: 50%; background: #BFD5F7; }

/* honors */
.honor-grid { display: grid; grid-template-columns: 1.1fr 1fr 1fr; gap: 20px; margin-top: 44px; }
.honor { padding: 28px 26px; }
.honor h3 { font-size: 18px; color: var(--ink); display: flex; align-items: center; gap: 10px; }
.honor h3::before { content: ""; width: 8px; height: 8px; background: var(--navy-2); border-radius: 2px; }
.honor .chips { margin-top: 16px; }
.honor-main { background: linear-gradient(160deg, var(--deep) 0%, #1B2D5E 70%, var(--navy) 130%); border-color: transparent; color: #fff; position: relative; overflow: hidden; }
.honor-main h3 { color: #fff; }
.honor-main h3::before { background: #9FC7FB; }
.honor-years { margin-top: 14px; }
.honor-years li { display: flex; gap: 18px; align-items: baseline; padding: 12px 0; border-top: 1px solid rgba(255,255,255,.14); }
.honor-years b { font-family: var(--din); font-size: 20px; color: #9FC7FB; flex: none; }
.honor-years span { font-size: 15px; }

/* partners */
.partner-grid { --cols: 6; display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.partner-grid li { flex: 0 0 calc((100% - (var(--cols) - 1) * 12px) / var(--cols)); display: grid; place-items: center; text-align: center; min-height: 72px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 12px; background: #fff; font-size: 15.5px; font-weight: 600; color: #3A4865; line-height: 1.35; transition: color .25s, border-color .25s, opacity .3s; }
.partner-grid li small { display: block; font-size: 11.5px; font-weight: 400; color: var(--muted); margin-top: 2px; }
.partner-grid li:hover { color: var(--blue); border-color: rgba(29,120,250,.5); }

/* clients wall */
.client-wall { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }
.client-wall li { padding: 9px 16px; border: 1px solid var(--line); border-radius: 10px; background: #fff; font-size: 14.5px; color: #33415F; white-space: nowrap; }
.cw-rows { margin-top: 36px; display: grid; gap: 12px; -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent); mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent); }
.cw-row { display: flex; gap: 12px; width: max-content; animation: marquee 70s linear infinite; }
.cw-row.rev { animation-direction: reverse; animation-duration: 80s; }
.cw-rows:hover .cw-row { animation-play-state: paused; }
.cw-row span { padding: 12px 22px; border: 1px solid var(--line); border-radius: 12px; background: #fff; font-size: 15px; font-weight: 600; color: #2B3956; white-space: nowrap; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* more cases */
.case-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 40px; }
.case-list article { padding: 24px 26px; }
.cl-tag { font-size: 12.5px; color: var(--navy-2); font-weight: 600; }
.case-list h3 { margin-top: 6px; font-size: 17px; color: var(--ink); line-height: 1.45; }
.case-list p.d { margin-top: 8px; font-size: 14.5px; color: var(--muted); line-height: 1.75; }
.case-list dl { margin: 12px 0 0; }
.case-list dl > div { display: grid; grid-template-columns: 70px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.case-list dt { font-size: 13px; font-weight: 700; color: var(--navy-2); }
.case-list dd { margin: 0; font-size: 14px; color: #3D4B67; line-height: 1.7; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.contact-info { padding: 30px 30px; }
.contact-info h2 { font-size: 22px; color: var(--ink); }
.contact-list { margin-top: 18px; }
.contact-list li { display: grid; grid-template-columns: 56px 1fr; gap: 12px; padding: 14px 0; border-top: 1px solid var(--line); font-size: 15.5px; }
.contact-list li span { color: var(--muted); font-size: 14px; padding-top: 1px; }
.contact-list a { color: var(--navy); font-weight: 600; }
.contact-list a:hover { color: var(--blue); }
.contact-list b { font-weight: 600; color: var(--ink); }
.qr { display: flex; align-items: center; gap: 16px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--muted); }
.qr img { width: 104px; height: 104px; border-radius: 10px; background: #fff; padding: 6px; border: 1px solid var(--line); }
.contact-form { padding: 30px; display: grid; gap: 14px; }
.form-title { font-size: 22px; font-weight: 700; color: var(--ink); }
.form-sub { font-size: 14px; color: var(--muted); margin-top: -6px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label { display: grid; gap: 6px; font-size: 13.5px; color: var(--muted); }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; border: 1px solid var(--line-2); border-radius: 10px; padding: 11px 14px; background: #fff; font-size: 15px; color: var(--ink); outline: none; transition: border-color .2s, box-shadow .2s; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(29,120,250,.15); }
.contact-form textarea { resize: vertical; }
.contact-form .invalid { border-color: #E5484D; }
.form-note { font-size: 12.5px; color: var(--muted); text-align: center; }
.faq-grid { display: grid; grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: 14px; margin-bottom: 10px; transition: border-color .3s, box-shadow .3s; }
.faq-list details[open] { border-color: rgba(29,120,250,.45); box-shadow: var(--shadow); }
.faq-list summary { list-style: none; cursor: pointer; padding: 18px 54px 18px 22px; font-weight: 600; font-size: 16px; color: var(--ink); position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ""; position: absolute; right: 22px; top: 50%; width: 9px; height: 9px; margin-top: -6px; border-right: 2px solid var(--navy-2); border-bottom: 2px solid var(--navy-2); transform: rotate(45deg); transition: transform .3s var(--ease); }
.faq-list details[open] summary::after { transform: rotate(-135deg); margin-top: -1px; border-color: var(--blue); }
.faq-list details p { padding: 0 22px 20px; color: #3D4B67; font-size: 15px; line-height: 1.85; }

/* ---------- footer ---------- */
.site-footer { background: var(--deep); color: #B9C5DD; font-size: 14px; border-top: 1px solid rgba(255,255,255,.06); }
.foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr; gap: 40px; padding: 52px 0 36px; }
.foot-brand img { width: 60px; height: auto; }
.foot-brand p { margin-top: 14px; line-height: 1.7; font-size: 12.5px; }
.foot-brand b { color: #fff; font-size: 15px; }
.foot-brand .slogan { color: #9FC7FB; letter-spacing: .2em; font-size: 14px; }
.foot-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; align-content: start; }
.foot-nav a:hover, .foot-contact a:hover { color: #fff; }
.foot-contact p + p { margin-top: 8px; }
.foot-contact a { color: #DCE9FD; }
.foot-bottom { display: flex; justify-content: space-between; gap: 16px; padding: 18px 0 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: 12.5px; color: #8492AE; flex-wrap: wrap; }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; top: 88px; z-index: 200; transform: translate(-50%, -12px); max-width: calc(100% - 32px); padding: 12px 20px; border-radius: 12px; background: var(--deep); color: #fff; font-size: 14px; line-height: 1.6; text-align: center; box-shadow: 0 20px 40px -18px rgba(0,0,0,.5); opacity: 0; pointer-events: none; transition: opacity .35s, transform .35s var(--ease); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ===== Motion layer — active with html.motion (always set by site.js) ===== */
@keyframes rise { from { opacity: 0; transform: translateY(.6em); filter: blur(8px); } to { opacity: 1; transform: none; filter: blur(0); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.motion .hero h1 .w, .motion .page-hero h1 .w { display: inline-block; opacity: 0; animation: rise .9s var(--ease) forwards; animation-delay: calc(var(--i) * 40ms + 300ms); }
.motion .hero .eyebrow { animation: fadeUp .8s .1s both; }
.motion .hero .lead { animation: fadeUp .9s 1.1s both; }
.motion .hero .cta-row { animation: fadeUp .9s 1.3s both; }
.motion .stage-cap { animation: fadeUp .8s 3.2s both; }
.motion .page-hero .lead { animation: fadeUp .9s .8s both; }
.motion .page-hero .page-nav, .motion .page-hero .crumb { animation: fadeUp .8s .2s both; }

.motion .reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--d, 0ms); }
.motion .reveal.in { opacity: 1; transform: none; }
.motion .reveal h2 { clip-path: inset(0 0 100% 0); transform: translateY(40%); transition: clip-path 1s .12s var(--ease), transform 1s .12s var(--ease); }
.motion .reveal.in h2 { clip-path: inset(-10% -5% -20% -5%); transform: none; }
.motion .about-media.reveal > img, .motion .ccard-media img { clip-path: inset(100% 0 0 0); scale: 1.15; transition: clip-path 1.3s cubic-bezier(.7,0,.2,1), scale 1.8s var(--ease); }
.motion .about-media.reveal.in > img, .motion .reveal.in .ccard-media img, .motion .ccard.reveal.in .ccard-media img { clip-path: inset(0); scale: 1; }
.motion .ccard.reveal.in:hover .ccard-media img { scale: 1.05; }

.motion .tilt { transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .35s var(--ease), border-color .3s, box-shadow .4s, opacity .8s var(--ease), filter .4s; }
.motion .tilt.reveal:not(.in) { transform: perspective(900px) translateY(26px); }
.motion .tilt::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .3s; background: radial-gradient(360px circle at var(--gx, 50%) var(--gy, 50%), rgba(29,120,250,.08), transparent 60%); z-index: 2; }
.motion .tilt:hover::after { opacity: 1; }
.motion .btn { translate: var(--bx, 0px) var(--by, 0px); transition: background .2s, color .2s, box-shadow .2s, translate .25s var(--ease); }
.motion .site-header.scrolled { background: rgba(255,255,255,.95); box-shadow: 0 10px 30px -20px rgba(24,35,63,.3); }
.motion .site-header.scrolled .nav { height: 60px; }
.progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--navy), var(--blue)); transform: scaleX(0); transform-origin: 0 50%; z-index: 100; pointer-events: none; }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .menu a { padding: 8px 10px; font-size: 14.5px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step:nth-child(2)::after { display: none; }
  .standards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sol-tags { grid-template-columns: repeat(2, 1fr); }
  .partner-mini { grid-template-columns: repeat(4, 1fr); }
  .badges { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 1024px) {
  .menu { position: fixed; left: 0; right: 0; top: 0; padding: 84px 24px 24px; flex-direction: column; background: rgba(255,255,255,.98); box-shadow: 0 30px 50px -30px rgba(11,58,130,.4); transform: translateY(-110%); visibility: hidden; transition: transform .45s var(--ease), visibility 0s .45s; z-index: -1; }
  .menu.open { transform: none; visibility: visible; transition: transform .45s var(--ease); }
  .menu a { padding: 14px 4px; font-size: 17px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .menu a[aria-current="page"]::after { display: none; }
  .burger { display: block; }
  .hero { min-height: 0; padding: 36px 0 24px; }
  .hero-grid { grid-template-columns: 1fr; gap: 8px; }
  .hero-stage { height: 80vw; max-height: 640px; min-height: 0; }
  .biz-cards, .case-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-grid { grid-template-columns: 1fr; }
  .cta-side { justify-self: start; }
  .page-hero .wrap { grid-template-columns: 1fr; }
  .ph-art { display: none; }
  .about-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-media { max-height: 420px; aspect-ratio: 16 / 11; }
  .stats5 { grid-template-columns: repeat(3, 1fr); }
  .stats5 > div:nth-child(4) { border-left: 0; }
  .stats5 > div:nth-child(n+4) { border-top: 1px solid var(--line); }
  .culture { grid-template-columns: repeat(2, 1fr); }
  .honor-grid { grid-template-columns: 1fr 1fr; }
  .honor-main { grid-column: 1 / -1; }
  .partner-grid { --cols: 4; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .wrap, .hero-grid { width: calc(100% - 32px); }
  body { font-size: 15px; }
  .nav { height: 62px; gap: 10px; }
  .brand img { width: 40px; }
  .brand-txt b { font-size: 15px; }
  .nav-tel { display: none; }
  .nav-tools { gap: 8px; }
  .nav-tools .btn-line { height: 36px; padding: 0 12px; font-size: 13px; }
  .hero { padding-top: 22px; }
  .hero-copy { padding: 4px 0 0; }
  .eyebrow { font-size: 11.5px; letter-spacing: .06em; padding: 5px 12px; gap: 8px; }
  .hero h1 { margin-top: 16px; font-size: clamp(26px, 7.4vw, 34px); }
  .hero .lead { margin-top: 14px; font-size: 15px; line-height: 1.8; }
  .cta-row { margin-top: 22px; gap: 14px 20px; }
  .cta-row .btn { height: 48px; padding: 0 24px; font-size: 15px; }
  .hero-links { gap: 18px; }
  .hero-stage { margin-inline: -16px; height: auto; margin-top: 8px; }
  .hero-stage .stage-cv { height: 88vw; flex: none; }
  .stage-cap { font-size: 12.5px; padding: 0 16px; white-space: normal; text-align: center; justify-content: center; flex-wrap: wrap; row-gap: 2px; min-height: 40px; }
  .sec { padding: 60px 0; }
  .sec-head h2 { font-size: 25px; }
  .sec-lead { font-size: 15px; }
  .biz-cards, .case-cards { grid-template-columns: 1fr; gap: 14px; margin-top: 30px; }
  .bcard { padding: 22px 20px 20px; }
  .bcard .value { min-height: 0; }
  .bcard .tlink { padding-top: 16px; }
  .trust { padding: 48px 0; }
  .trust-stats { grid-template-columns: 1fr 1fr; }
  .trust-stats > div { padding: 18px 18px; }
  .trust-stats > div:nth-child(3) { border-left: 0; }
  .trust-stats > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .trust-box { padding: 20px 16px; }
  .trust-box h3 { flex-wrap: wrap; }
  .badges { grid-template-columns: 1fr; }
  .partner-mini { grid-template-columns: 1fr 1fr; }
  .ccard-media { height: 150px; }
  .ccard-body { padding: 20px 18px; }
  .steps { grid-template-columns: 1fr; gap: 12px; margin-top: 30px; }
  .step::after { display: none; }
  .step .do { min-height: 0; }
  .standards { grid-template-columns: 1fr; gap: 10px; }
  .cta-band h2 { font-size: 25px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero .lead { font-size: 15px; }
  .stats5 { grid-template-columns: 1fr 1fr; }
  .stats5 > div { padding: 18px 16px; }
  .stats5 > div:nth-child(n) { border-left: 0; border-top: 1px solid var(--line); }
  .stats5 > div:nth-child(1), .stats5 > div:nth-child(2) { border-top: 0; }
  .stats5 > div:nth-child(even) { border-left: 1px solid var(--line); }
  .stats5 > div:last-child { grid-column: 1 / -1; }
  .culture { grid-template-columns: 1fr 1fr; gap: 12px; }
  .cul { padding: 20px 16px; }
  .cul h3 small { display: block; margin: 2px 0 0; }
  .sol-tags { grid-template-columns: 1fr 1fr; gap: 10px; }
  .sol-tags li { padding: 14px 12px; font-size: 14px; gap: 8px; }
  .tl-item { grid-template-columns: 1fr; padding-left: 36px; }
  .tl-item:nth-child(n) .tl-card { grid-column: 1; }
  .tl-dot { left: 12px; margin-left: -9px; top: 26px; }
  .tl-card { padding: 18px; }
  .tl-year { font-size: 24px; }
  .honor-grid { grid-template-columns: 1fr; }
  .partner-grid { --cols: 3; gap: 8px; }
  .partner-grid li { flex-basis: calc((100% - 16px) / 3); min-height: 58px; font-size: 13.5px; padding: 6px 4px; border-radius: 10px; }
  .case-list { grid-template-columns: 1fr; }
  .case-list dl > div { grid-template-columns: 1fr; gap: 2px; }
  .cw-row span { padding: 10px 16px; font-size: 14px; }
  .contact-info, .contact-form { padding: 22px 18px; }
  .f-row { grid-template-columns: 1fr; }
  .faq-list summary { padding: 16px 46px 16px 16px; font-size: 15px; }
  .faq-list details p { padding: 0 16px 16px; }
  .foot-grid { grid-template-columns: 1fr; gap: 26px; }
}

/* ===================== 多级站扩展（2026-10-28 晚） ===================== */
/* 导航下拉 */
.menu { align-items: center; }
.has-sub { position: relative; }
.has-sub > a::before { content: ""; }
.has-sub .sub { position: absolute; top: calc(100% + 6px); left: 0; min-width: 200px; padding: 8px; background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-h); display: grid; opacity: 0; visibility: hidden; transform: translateY(6px); transition: opacity .2s, transform .2s var(--ease), visibility 0s .2s; }
.has-sub .sub::before { content: ""; position: absolute; left: 0; right: 0; top: -10px; height: 10px; }
.has-sub:hover .sub, .has-sub:focus-within .sub { opacity: 1; visibility: visible; transform: none; transition: opacity .2s, transform .2s var(--ease); }
.menu .sub a { padding: 8px 12px; font-size: 14px; white-space: nowrap; }
.menu .sub a::after { display: none; }

/* 面包屑 */
.crumb { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.crumb i { font-style: normal; color: var(--line-2); }
.crumb span[aria-current] { color: var(--ink); }

/* 首屏补充 */
.hero-facts { display: flex; gap: 0; margin-top: 30px; border-top: 1px solid var(--line-2); padding-top: 18px; max-width: 440px; }
.hero-facts li { flex: 1; }
.hero-facts li + li { padding-left: 20px; border-left: 1px solid var(--line); margin-left: 20px; }
.hero-facts b { display: block; font-family: var(--din); font-size: 26px; line-height: 1.1; color: var(--ink); font-weight: 800; }
.hero-facts b i { font-style: normal; font-size: .65em; color: var(--blue); }
.hero-facts span { font-size: 13px; color: var(--muted); }
.motion .hero .hero-facts { animation: fadeUp .9s 1.5s both; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.hero-tags li { font-size: 13px; padding: 4px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: #33415F; }
.motion .page-hero .hero-tags { animation: fadeUp .9s .9s both; }

/* 信任条：厂商说明第三行 */
.partner-mini em { display: block; font-style: normal; font-size: 12px; color: var(--navy-2); margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--line); line-height: 1.45; }
.partner-wide { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 36px; }
.partner-wide li { background: var(--bg); border-color: transparent; }

/* 五步流程 */
.steps-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.steps-5 .step { padding: 22px 20px 20px; }
.steps-5 .step h3 { font-size: 17px; }
.steps-5 .step .do { font-size: 13.5px; min-height: 7em; }
.steps-5 .step:not(:last-child)::after { right: -12px; }
.resp-strip { margin-top: 24px; display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 2fr); gap: 24px; align-items: center; padding: 22px 24px; border-radius: var(--r); background: var(--bg); }
.resp-head { display: flex; gap: 14px; align-items: flex-start; }
.resp-head svg { width: 40px; height: 40px; flex: none; color: var(--navy-2); }
.resp-head h3 { font-size: 17px; color: var(--ink); }
.resp-head p { font-size: 13.5px; color: var(--muted); margin-top: 4px; }
.resp-strip .tbl { margin: 0; }

/* 通用网格与卡片 */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.sec-head + .grid-2, .sec-head + .grid-3, .sec-head + .split, .sec-head + .tbl, .sec-head + .flow, .sec-head + .diagram, .sec-head + .rel-grid, .sec-head + ul, .sec-head + .cert-grid, .sec-head + .client-groups, .sec-head + .case-list, .sec-head + .faq-list, .sec-head + .feat-grid, .sec-head + .prob-list, .sec-head + .next-steps, .sec-head + .office, .sec-head + .chips { margin-top: 36px; }
.mt { margin-top: 24px; }
.icard { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); padding: 24px 24px 22px; }
.sec-gray .icard { box-shadow: none; }
.icard h3 { font-size: 17px; color: var(--ink); line-height: 1.45; }
.icard p { margin-top: 8px; font-size: 14.5px; color: var(--muted); line-height: 1.75; }
.icard .chips { margin-top: 14px; }
.icard .tlink { margin-top: 16px; font-size: 14px; }
.icard-ic svg { width: 44px; height: 44px; padding: 9px; border-radius: 12px; background: var(--bg); color: var(--navy-2); box-sizing: border-box; margin-bottom: 14px; }
.icard .no { display: inline-block; font-family: var(--din); font-size: 12.5px; font-weight: 800; color: var(--blue); letter-spacing: .08em; margin-bottom: 8px; }
.dots { display: grid; gap: 6px; margin-top: 12px; }
.dots li { position: relative; padding-left: 16px; font-size: 14.5px; color: #3D4B67; line-height: 1.7; }
.dots li::before { content: ""; position: absolute; left: 0; top: .72em; width: 6px; height: 6px; border-radius: 2px; background: #BFD5F7; }
.dots.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 28px; }
.dots.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px 28px; margin-top: 20px; }
.small { font-size: 12.5px !important; color: var(--muted-2) !important; }
.note { margin-top: 16px; font-size: 13.5px; color: var(--muted); line-height: 1.75; padding-left: 12px; border-left: 2px solid #BFD5F7; }
.h3-sec { margin: 40px 0 16px; font-size: 18px; color: var(--ink); }
.chips-lg li { font-size: 14px; padding: 6px 14px; background: #fff; border: 1px solid var(--line); }
.sec-gray .chips-lg li { background: #fff; }

/* 图文分栏 */
.split { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.split .body:first-child { margin-top: 0; }
.fig { margin: 0; border-radius: var(--r); overflow: hidden; background: var(--bg-2); box-shadow: var(--shadow); }
.fig img { width: 100%; height: 100%; max-height: 360px; object-fit: cover; }
.fig figcaption { font-size: 12.5px; color: var(--muted); padding: 10px 14px; background: #fff; }
.split + .grid-2, .split + .tbl, .tbl + .grid-2, .tbl + .sol-cards, .tbl + .note, .split + .grid-3 { margin-top: 28px; }

/* 表格 */
.tbl { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
.tbl table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
.tbl th, .tbl td { text-align: left; padding: 13px 18px; border-bottom: 1px solid var(--line); vertical-align: top; line-height: 1.65; }
.tbl thead th { background: var(--bg); font-size: 13px; color: var(--muted); font-weight: 600; letter-spacing: .04em; }
.tbl tbody th { color: var(--ink); font-weight: 600; white-space: nowrap; }
.tbl td { color: #3D4B67; }
.tbl tr:last-child th, .tbl tr:last-child td { border-bottom: 0; }
.tbl.mt { margin-top: 20px; }
.tbl-resp table { min-width: 460px; }
.tbl-resp td:nth-child(2), .tbl-resp td:nth-child(3) { font-family: var(--din); font-weight: 700; color: var(--navy); white-space: nowrap; }

/* 方案卡、相关案例 */
.sol-cards { margin-top: 20px; }
.bcard.sol { min-height: 0; }
.bcard.sol h3 { margin-top: 0; font-size: 18px; }
.bcard.sol .value { min-height: 0; }
.bcard.sol .tlink { padding-top: 14px; }
.rel-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 20px; }
.rel { position: relative; display: block; padding: 18px 44px 18px 20px; border-radius: var(--r-sm); transition: border-color .25s, box-shadow .3s; }
.rel b { display: block; font-size: 15.5px; color: var(--ink); }
.rel span { display: block; margin-top: 4px; font-size: 13.5px; color: var(--muted); line-height: 1.6; }
.rel i { position: absolute; right: 18px; top: 18px; font-style: normal; color: var(--navy-2); transition: transform .25s var(--ease); }
.rel:hover { border-color: rgba(29,120,250,.45); box-shadow: var(--shadow-h); }
.rel:hover i { transform: translateX(3px); color: var(--blue); }

/* 流程（纵向） */
.flow { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 20px; counter-reset: f; }
.flow li { display: flex; gap: 16px; padding: 20px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); }
.flow em { flex: none; font-style: normal; font-family: var(--din); font-weight: 800; font-size: 13px; color: #fff; background: var(--navy); width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; }
.flow h3 { font-size: 16.5px; color: var(--ink); }
.flow p { margin-top: 4px; font-size: 14.5px; color: var(--muted); line-height: 1.7; }
.diagram + .flow, .flow + .note { margin-top: 20px; }

/* 业务总览 */
.lines { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.line-card .bcard-top .tlink { font-size: 14px; }
.line-card .value { min-height: 0; }
.sublinks { margin-top: 16px; display: grid; gap: 0; border-top: 1px solid var(--line); }
.sublinks a { display: flex; justify-content: space-between; padding: 10px 2px; border-bottom: 1px solid var(--line); font-size: 14.5px; color: #33415F; }
.sublinks a::after { content: "→"; color: var(--muted-2); transition: transform .25s var(--ease); }
.sublinks a:hover { color: var(--blue); }
.sublinks a:hover::after { transform: translateX(3px); color: var(--blue); }
.prob-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 20px; }
.prob-list a { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 16px; align-items: center; padding: 16px 20px; border: 1px solid var(--line); border-radius: var(--r-sm); background: #fff; transition: border-color .25s, box-shadow .3s; }
.prob-list .q { font-size: 15px; color: var(--ink); font-weight: 600; line-height: 1.5; }
.prob-list .a { font-size: 14px; color: var(--navy); font-weight: 600; text-align: right; }
.prob-list .a::after { content: " →"; }
.prob-list a:hover { border-color: rgba(29,120,250,.45); box-shadow: var(--shadow-h); }
.prob-list a:hover .a { color: var(--blue); }
.doc-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.doc-grid li { display: flex; gap: 10px; align-items: center; padding: 11px 14px; background: #fff; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; color: #33415F; }
.doc-grid i { font-style: normal; font-family: var(--din); font-size: 12px; font-weight: 700; color: var(--navy-2); background: var(--bg); padding: 2px 6px; border-radius: 6px; flex: none; }

/* 功能清单 */
.feat-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.feat-grid li { padding: 14px 12px; text-align: center; font-size: 14px; color: #33415F; background: #fff; border: 1px solid var(--line); border-radius: 10px; }

/* 首页团队模块 */
.proof .icard { display: flex; flex-direction: column; }
.cert-mini { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-top: 14px; }
.cert-mini figure { margin: 0; aspect-ratio: 3 / 4; border: 1px solid var(--line); border-radius: 8px; background: #fff; padding: 4px; display: grid; place-items: center; }
.cert-mini img { max-height: 100%; width: auto; object-fit: contain; }

/* 证书墙 */
.cert-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.cert-grid figure { margin: 0; padding: 10px; display: flex; flex-direction: column; }
.cert-img { aspect-ratio: 3 / 4; display: grid; place-items: center; background: var(--bg); border-radius: 8px; padding: 6px; }
.cert-img img { max-height: 100%; width: auto; object-fit: contain; }
.cert-grid figcaption { margin-top: 10px; font-size: 12.5px; color: #3D4B67; line-height: 1.5; }

/* 案例 */
.case-cards.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.ccard .tlink { margin-top: auto; padding-top: 18px; font-size: 14.5px; }
.ccard .how { margin-bottom: 4px; }
.case-item .chips { margin-top: 14px; }
.client-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cg { padding: 20px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); }
.cg h3 { font-size: 15px; color: var(--navy-2); margin-bottom: 12px; }
.cg:last-child { grid-column: 1 / -1; }
.status-tag { display: inline-flex; margin-top: 16px; font-size: 13px; font-weight: 600; color: var(--navy); background: #fff; border: 1px solid #C8DAF7; padding: 4px 12px; border-radius: 999px; }
.case-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); max-width: 640px; }
.case-facts li { padding: 14px 16px; }
.case-facts li + li { border-left: 1px solid var(--line); }
.case-facts b { display: block; font-family: var(--din); font-size: 26px; line-height: 1.1; color: var(--blue); font-weight: 800; }
.case-facts span { display: block; margin-top: 4px; font-size: 12.5px; color: var(--muted); line-height: 1.45; }
.diagram { padding: 18px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.diagram .topo { display: block; width: 100%; min-width: 640px; height: auto; }

/* 关于 */
.stats4 { grid-template-columns: repeat(4, 1fr); }
.stats4 > div:first-child b { color: var(--ink); }
.office { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 26px 28px; flex-wrap: wrap; }
.office-addr { font-size: 18px; font-weight: 600; color: var(--ink); }
.office p + p { margin-top: 6px; color: var(--muted); font-size: 14.5px; }
.office a { color: var(--navy); font-weight: 600; }

/* 联系 */
.next-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.next-steps li { padding: 24px; }
.next-steps em { font-style: normal; font-family: var(--din); font-size: 13px; font-weight: 800; color: var(--blue); }
.next-steps h3 { margin-top: 8px; font-size: 18px; color: var(--ink); }
.next-steps p { margin-top: 6px; color: var(--muted); font-size: 14.5px; line-height: 1.75; }

/* 页脚五栏 */
.foot-grid { grid-template-columns: 1.3fr .9fr 1fr .9fr 1.3fr; gap: 32px; }
.foot-col { display: grid; gap: 9px; align-content: start; }
.foot-col a:hover { color: #fff; }
.foot-h { color: #fff; font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.page-hero.nf { min-height: 60vh; display: flex; align-items: center; }

@media (max-width: 1180px) {
  .steps-5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .steps-5 .step:nth-child(3)::after { display: none; }
  .feat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .cert-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .doc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .partner-wide { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .foot-grid { grid-template-columns: repeat(3, 1fr); }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 1024px) {
  .menu { max-height: 100vh; overflow-y: auto; align-items: stretch; }
  .has-sub .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 6px 14px; min-width: 0; grid-template-columns: 1fr 1fr; }
  .has-sub .sub::before { display: none; }
  .menu .sub a { font-size: 14.5px; padding: 10px 4px; border-bottom: 0; color: var(--muted); }
  .has-sub > a { display: block; }
  .resp-strip { grid-template-columns: 1fr; }
  .grid-3, .rel-grid, .next-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lines { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: 1fr; }
  .fig img { max-height: 320px; }
  .prob-list { grid-template-columns: 1fr; }
  .stats4 { grid-template-columns: repeat(2, 1fr); }
  .stats4 > div:nth-child(3) { border-left: 0; }
  .stats4 > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .stats4 > div:nth-child(4) { border-left: 1px solid var(--line); }
}
@media (max-width: 720px) {
  .hero-facts { margin-top: 22px; padding-top: 14px; }
  .hero-facts li + li { padding-left: 14px; margin-left: 14px; }
  .hero-facts b { font-size: 22px; }
  .hero-facts span { font-size: 12px; }
  .steps-5 { grid-template-columns: 1fr; }
  .steps-5 .step .do { min-height: 0; }
  .grid-2, .grid-3, .rel-grid, .next-steps, .flow, .case-cards.two, .client-groups, .lines { grid-template-columns: 1fr; gap: 12px; }
  .icard { padding: 20px 18px; }
  .dots.cols-2, .dots.cols-3 { grid-template-columns: 1fr; }
  .feat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .doc-grid { grid-template-columns: 1fr 1fr; }
  .doc-grid li { font-size: 13px; padding: 10px; }
  .partner-wide { grid-template-columns: 1fr 1fr; }
  .prob-list a { grid-template-columns: 1fr; gap: 4px; padding: 14px 16px; }
  .prob-list .a { text-align: left; }
  .tbl th, .tbl td { padding: 11px 12px; font-size: 13.5px; }
  .resp-strip { padding: 18px 14px; }
  .case-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case-facts li:nth-child(3) { border-left: 0; }
  .case-facts li:nth-child(n+3) { border-top: 1px solid var(--line); }
  .cg:last-child { grid-column: auto; }
  .office { padding: 20px 18px; }
  .office-addr { font-size: 16px; }
  .h3-sec { margin-top: 32px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .foot-contact { grid-column: 1 / -1; }
  .diagram { padding: 10px; }
}

/* 修正：首屏标题两行、厂商卡 4 列、证书缩略图 */
.hero h1 { font-size: clamp(30px, 3.3vw, 44px); }
.trust .partner-mini { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cert-mini figure { aspect-ratio: auto; height: 110px; overflow: hidden; }
.cert-mini img, .cert-img img { height: auto; width: auto; max-width: 100%; max-height: 100%; }
.cert-img { aspect-ratio: auto; height: 200px; overflow: hidden; }
@media (max-width: 720px) {
  .trust .partner-mini { grid-template-columns: 1fr 1fr; }
  .cert-img { height: 150px; }
  .cert-mini figure { height: 90px; }
}

/* 修正：手机菜单子项跟随菜单隐藏；内页插画柔化边缘；表格在手机上改为卡片式 */
@media (max-width: 1024px) {
  .has-sub .sub { visibility: inherit; }
}
.ph-art { height: 280px; -webkit-mask-image: radial-gradient(closest-side, #000 72%, transparent); mask-image: radial-gradient(closest-side, #000 72%, transparent); }
@media (max-width: 720px) {
  .tbl { border: 0; background: transparent; overflow: visible; }
  .tbl table, .tbl tbody, .tbl tr, .tbl th, .tbl td { display: block; min-width: 0; width: 100%; }
  .tbl table { min-width: 0; }
  .tbl thead { display: none; }
  .tbl tr { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; }
  .tbl tbody th { white-space: normal; padding: 0 0 6px; border: 0; font-size: 14.5px; }
  .tbl td { display: grid; grid-template-columns: 6.5em minmax(0, 1fr); gap: 10px; padding: 6px 0; border: 0; border-top: 1px dashed var(--line); font-size: 13.5px; }
  .tbl td::before { content: attr(data-label); color: var(--muted-2); font-size: 12.5px; font-family: var(--sans); font-weight: 400; }
  .tbl-resp td:nth-child(2), .tbl-resp td:nth-child(3) { white-space: normal; }
  .resp-strip .tbl tr { margin-bottom: 8px; }
}
@media (max-width: 1024px) { .menu { background: #fff; } }