:root {
  --ink: #172033;
  --ink-strong: #08142b;
  --ink-soft: #5d6b82;
  --paper: #f6f8fc;
  --white: #fff;
  --line: #dfe6f0;
  --brand: #1769e8;
  --brand-dark: #0b48ae;
  --cyan: #12b8c4;
  --sky: #eaf4ff;
  --mint: #e8faf8;
  --navy: #0c2344;
  --radius: 24px;
  --shadow: 0 22px 70px rgba(37, 72, 125, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; line-height: 1.72; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
:focus-visible { outline: 3px solid #5ad6df; outline-offset: 3px; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 99; padding: 10px 16px; background: var(--white); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.86); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(21,65,120,.1); }
.nav { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 270px; }
.brand img { width: 44px; height: 44px; flex: 0 0 auto; filter: drop-shadow(0 7px 13px rgba(23,105,232,.16)); }
.brand-name { display: grid; line-height: 1.22; }
.brand-name strong { color: var(--ink-strong); font-size: 16px; letter-spacing: .03em; }
.brand-name small { margin-top: 4px; color: #738198; font-size: 10px; letter-spacing: .02em; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.nav-links a { position: relative; color: #46546a; transition: color .2s ease; }
.nav-links a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: linear-gradient(90deg, var(--brand), var(--cyan)); transition: right .25s ease; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--brand-dark); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { right: 0; }
.nav-cta { padding: 10px 18px; color: white !important; background: var(--brand); border-radius: 999px; box-shadow: 0 10px 25px rgba(23,105,232,.22); }
.menu-toggle { display: none; color: var(--ink-strong); background: white; border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; }

.hero { position: relative; overflow: hidden; padding: 105px 0 108px; background: radial-gradient(circle at 82% 12%, rgba(18,184,196,.16), transparent 28%), radial-gradient(circle at 18% 8%, rgba(23,105,232,.12), transparent 25%), linear-gradient(145deg, #fff 0%, #f3f8ff 58%, #eefbf9 100%); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .55; background-image: linear-gradient(rgba(29,89,167,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(29,89,167,.055) 1px, transparent 1px); background-size: 54px 54px; mask-image: linear-gradient(to bottom, #000, transparent 88%); }
.hero::after { content: ""; position: absolute; width: 450px; height: 450px; right: -160px; top: -170px; border: 1px solid rgba(23,105,232,.12); border-radius: 50%; box-shadow: 0 0 0 65px rgba(23,105,232,.025), 0 0 0 130px rgba(18,184,196,.018); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.22fr .78fr; gap: 68px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; color: var(--brand-dark); font-size: 13px; font-weight: 800; letter-spacing: .12em; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: linear-gradient(90deg, var(--brand), var(--cyan)); }
h1, h2, h3 { color: var(--ink-strong); line-height: 1.17; letter-spacing: -.035em; }
h1 { max-width: 820px; margin: 0; font-size: clamp(42px, 5.8vw, 74px); }
.hero-copy { max-width: 680px; margin: 26px 0 34px; color: var(--ink-soft); font-size: clamp(17px, 2vw, 20px); }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; }
.btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 0 22px; border: 1px solid transparent; border-radius: 999px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: white; background: linear-gradient(115deg, var(--brand), #218ccf); box-shadow: 0 13px 30px rgba(23,105,232,.22); }
.btn-secondary, .btn-soft { color: var(--brand-dark); background: rgba(255,255,255,.76); border-color: #bdd2ee; }
.hero-note { display: flex; align-items: center; gap: 9px; margin-top: 24px; color: #67768b; font-size: 13px; }
.status-dot { width: 8px; height: 8px; background: #16ad79; border-radius: 50%; box-shadow: 0 0 0 5px rgba(22,173,121,.11); }
.hero-panel { position: relative; overflow: hidden; padding: 30px; background: rgba(255,255,255,.82); border: 1px solid rgba(92,134,187,.2); border-radius: 28px; box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.hero-panel::after { content: ""; position: absolute; width: 120px; height: 120px; right: -45px; bottom: -45px; background: rgba(18,184,196,.09); border-radius: 50%; }
.panel-top { display: flex; justify-content: space-between; gap: 12px; color: #8190a4; font-size: 11px; letter-spacing: .08em; }
.mini-label { margin: 0; color: var(--brand); font-weight: 850; }
.flow-line { display: flex; align-items: center; gap: 0; margin: 24px 0 10px; }
.flow-line i { position: relative; width: 25%; height: 2px; background: #d6e3f3; }
.flow-line i::before { content: ""; position: absolute; left: 0; top: -4px; width: 10px; height: 10px; background: var(--brand); border: 3px solid white; border-radius: 50%; box-shadow: 0 0 0 1px #9dbce3; }
.flow-line i:last-child { background: linear-gradient(90deg, #d6e3f3, transparent); }
.metric { padding: 17px 0; border-top: 1px solid var(--line); }
.metric:first-of-type { border-top: 0; }
.metric strong { display: block; color: var(--ink-strong); font-size: 17px; }
.metric span { color: #728098; font-size: 13px; }

.trust-strip { position: relative; z-index: 2; margin-top: -38px; }
.trust-card { display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
.trust-item { padding: 23px 26px; border-right: 1px solid var(--line); }
.trust-item:last-child { border-right: 0; }
.trust-item strong { display: block; color: var(--ink-strong); font-size: 17px; }
.trust-item span { color: var(--ink-soft); font-size: 13px; }
.section { padding: 100px 0; }
.section-white { background: white; }
.section-process { background: #eef6ff; }
.section-head { display: flex; justify-content: space-between; gap: 48px; align-items: end; margin-bottom: 44px; }
.section-head h2 { max-width: 760px; margin: 0; font-size: clamp(32px, 4vw, 50px); }
.section-head p { max-width: 450px; margin: 0; color: var(--ink-soft); }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.service-card { position: relative; overflow: hidden; min-height: 330px; padding: 28px; background: white; border: 1px solid var(--line); border-radius: var(--radius); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.service-card::after { content: ""; position: absolute; width: 90px; height: 90px; right: -45px; top: -45px; border: 1px solid rgba(23,105,232,.18); border-radius: 50%; transition: transform .3s ease; }
.service-card:hover { transform: translateY(-6px); border-color: #9dbfe9; box-shadow: var(--shadow); }
.service-card:hover::after { transform: scale(1.5); }
.card-no { color: var(--brand); font-size: 12px; font-weight: 850; letter-spacing: .12em; }
.service-card h3 { margin: 58px 0 14px; font-size: 25px; }
.service-card p { margin: 0 0 28px; color: var(--ink-soft); font-size: 14px; }
.service-card-ai { grid-column: 1 / -1; display: grid; grid-template-columns: 72px minmax(220px, .75fr) minmax(320px, 1.25fr) auto; gap: 28px; align-items: center; min-height: 150px; background: radial-gradient(circle at 92% 20%, rgba(18,184,196,.16), transparent 24%), linear-gradient(120deg, #eef5ff, #edfbf8); border-color: #c9e1ed; }
.service-card-ai::before { content: "AI"; position: absolute; right: 34px; top: -20px; color: rgba(23,105,232,.06); font-size: 120px; font-weight: 900; line-height: 1; }
.service-card-ai h3 { margin: 0; font-size: 29px; }
.service-card-ai p { position: relative; z-index: 1; margin: 0; font-size: 15px; }
.service-card-ai .arrow-link { position: relative; z-index: 1; padding: 11px 17px; color: white; background: var(--brand); border-radius: 999px; white-space: nowrap; }
.arrow-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-dark); font-weight: 750; }
.arrow-link span { transition: transform .2s ease; }
.arrow-link:hover span { transform: translateX(4px); }
.process { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.process-item { position: relative; padding: 26px 20px; background: white; border: 1px solid #d8e7f6; border-radius: 18px; box-shadow: 0 12px 36px rgba(43,91,145,.06); }
.process-item::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 38px; color: var(--brand); font-weight: 850; }
.process-item:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; right: -13px; top: 25px; display: grid; place-items: center; width: 26px; height: 26px; color: #79a4d8; background: #eef6ff; border-radius: 50%; }
.process-item h3 { margin: 0 0 10px; font-size: 18px; }
.process-item p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.about-home-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 24px; }
.company-story, .map-card { min-height: 390px; border-radius: 28px; }
.company-story { padding: 42px; background: linear-gradient(145deg, var(--sky), #f8fbff); border: 1px solid #d5e6f8; }
.company-story h3 { max-width: 560px; margin: 48px 0 18px; font-size: clamp(28px, 3vw, 39px); }
.company-story p { color: var(--ink-soft); }
.map-card { display: grid; grid-template-columns: 1fr 1fr; overflow: hidden; background: var(--mint); border: 1px solid #caebe7; }
.map-visual { position: relative; min-height: 260px; overflow: hidden; background-color: #dff5f1; background-image: linear-gradient(rgba(20,130,148,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(20,130,148,.08) 1px, transparent 1px); background-size: 32px 32px; }
.map-road { position: absolute; display: block; width: 140%; height: 22px; left: -20%; background: rgba(255,255,255,.8); border: 1px solid rgba(18,140,157,.1); transform: rotate(-23deg); }
.road-one { top: 36%; }
.road-two { top: 62%; transform: rotate(31deg); }
.map-pin { position: absolute; z-index: 3; left: 54%; top: 42%; width: 36px; height: 44px; background: linear-gradient(145deg, var(--brand), var(--cyan)); border-radius: 50% 50% 50% 8px; transform: rotate(-45deg); box-shadow: 0 12px 25px rgba(23,105,232,.26); }
.map-pin i { position: absolute; left: 11px; top: 11px; width: 14px; height: 14px; background: white; border-radius: 50%; }
.map-pulse { position: absolute; left: calc(54% - 20px); top: calc(42% + 22px); width: 78px; height: 30px; border: 2px solid rgba(23,105,232,.25); border-radius: 50%; animation: map-pulse 2.6s ease-out infinite; }
@keyframes map-pulse { 0% { transform: scale(.4); opacity: .8; } 100% { transform: scale(1.45); opacity: 0; } }
.map-info { display: flex; flex-direction: column; justify-content: center; padding: 34px; }
.map-info h3 { margin: 12px 0; font-size: 30px; }
.map-info address { margin-bottom: 26px; color: var(--ink-soft); font-style: normal; }
.map-link { color: var(--brand-dark); font-weight: 750; }

.case-preview { background: #f5f8fc; }
.case-shell { display: grid; grid-template-columns: .95fr 1.05fr; min-height: 330px; overflow: hidden; background: white; border: 1px dashed #b8c8dc; border-radius: 28px; }
.case-placeholder { position: relative; display: flex; flex-direction: column; justify-content: space-between; padding: 36px; color: #5f7b9e; background: repeating-linear-gradient(135deg, #edf4fb 0, #edf4fb 16px, #f5f9fd 16px, #f5f9fd 32px); }
.case-placeholder::after { content: "+"; position: absolute; left: 50%; top: 50%; display: grid; place-items: center; width: 72px; height: 72px; color: var(--brand); background: white; border: 1px solid #c7d9ef; border-radius: 50%; font-size: 32px; transform: translate(-50%, -50%); box-shadow: var(--shadow); }
.case-placeholder span { font-size: 12px; letter-spacing: .12em; }
.case-placeholder strong { font-size: 18px; }
.case-copy { display: flex; flex-direction: column; justify-content: center; padding: 52px; }
.case-copy > p:first-child { color: var(--brand); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.case-copy h3 { margin: 8px 0 16px; font-size: 30px; }
.case-copy p { color: var(--ink-soft); }

.cta { padding: 72px 0; color: white; background: linear-gradient(110deg, #155ecf, #117fbd 62%, #10a8a9); }
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 32px; }
.cta h2 { max-width: 700px; margin: 0; color: white; font-size: clamp(30px, 4vw, 48px); }
.cta p { color: #e8f5ff; }
.cta .btn-primary { color: var(--brand-dark); background: white; box-shadow: none; }

.page-hero { position: relative; overflow: hidden; padding: 84px 0 74px; background: linear-gradient(145deg, #f7fbff, #ecf5ff 70%, #edfafa); }
.page-hero::after { content: ""; position: absolute; right: -130px; top: -190px; width: 420px; height: 420px; border: 1px solid rgba(23,105,232,.14); border-radius: 50%; box-shadow: 0 0 0 70px rgba(23,105,232,.025); }
.page-hero h1 { max-width: 920px; font-size: clamp(38px, 5vw, 62px); }
.page-hero p { max-width: 780px; margin: 22px 0 0; color: var(--ink-soft); font-size: 18px; }
.breadcrumbs { margin-bottom: 24px; color: #7b899d; font-size: 13px; }
.breadcrumbs a { color: var(--brand-dark); }
.content-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 68px; }
.sticky-title { position: sticky; top: 118px; align-self: start; }
.sticky-title h2 { margin: 0 0 30px; font-size: 42px; }
.company-fact { display: grid; margin-top: 16px; padding: 18px 20px; background: var(--paper); border: 1px solid var(--line); border-radius: 16px; }
.company-fact strong { color: var(--brand-dark); font-size: 20px; }
.company-fact span { color: var(--ink-soft); font-size: 13px; }
.content-block { padding: 32px 0; border-top: 1px solid var(--line); }
.content-block:first-child { padding-top: 0; border-top: 0; }
.content-block h2, .content-block h3 { margin-top: 0; }
.content-block h3 { font-size: 25px; }
.content-block p, .content-block li { color: var(--ink-soft); }
.office-detail { margin-top: 18px; padding: 30px; background: var(--mint); border: 1px solid #cce9e6; border-radius: 22px; }
.check-list { padding: 0; list-style: none; }
.check-list li { position: relative; padding: 8px 0 8px 28px; }
.check-list li::before { content: ""; position: absolute; left: 0; top: 16px; width: 10px; height: 10px; background: var(--cyan); border: 3px solid #dff7f5; border-radius: 50%; }
.insight-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.insight-card { padding: 28px; background: white; border: 1px solid var(--line); border-radius: var(--radius); transition: transform .2s ease, box-shadow .2s ease; }
.insight-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.insight-card time { color: var(--brand-dark); font-size: 12px; font-weight: 800; }
.insight-card h2 { margin: 18px 0 12px; font-size: 24px; }
.insight-card p { color: var(--ink-soft); font-size: 14px; }
.contact-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 56px; }
.contact-note { padding: 32px; color: var(--ink); background: var(--sky); border: 1px solid #cee1f5; border-radius: var(--radius); }
.contact-note h2 { margin-top: 0; font-size: 30px; }
.contact-note p { color: var(--ink-soft); }
.contact-address { display: grid; gap: 5px; margin-top: 28px; padding-top: 22px; border-top: 1px solid #c8dbef; }
.contact-address span { color: #58687e; font-size: 12px; }
.contact-address a { color: var(--brand-dark); font-size: 14px; font-weight: 700; }
.form-card { padding: 34px; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: grid; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13px; font-weight: 750; }
.form-field input, .form-field select, .form-field textarea { width: 100%; padding: 13px 14px; color: var(--ink); background: #fbfcfe; border: 1px solid #cbd5e1; border-radius: 10px; }
.form-field textarea { min-height: 130px; resize: vertical; }
.form-field small { color: var(--ink-soft); }
.consent { display: flex; gap: 10px; align-items: start; color: var(--ink-soft); font-size: 13px; }
.consent input { margin-top: 5px; }
.alert { margin-bottom: 20px; padding: 14px 16px; border-radius: 10px; }
.alert-success { color: #0a5b38; background: #e9f8ef; border: 1px solid #a8e0bd; }
.alert-error { color: #8f1f1f; background: #fff0f0; border: 1px solid #f1b6b6; }
.honeypot { position: absolute !important; left: -9999px !important; }
.wechat-section { scroll-margin-top: 96px; }
.wechat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.wechat-card { position: relative; display: grid; grid-template-columns: 1fr 220px; grid-template-rows: 1fr auto; gap: 18px 28px; align-items: center; overflow: hidden; min-height: 340px; padding: 34px; background: var(--paper); border: 1px solid var(--line); border-radius: 28px; }
.wechat-card.enterprise { background: linear-gradient(145deg, #edf6ff, #f8fbff); border-color: #cce0f5; }
.wechat-card.personal { background: linear-gradient(145deg, #effaf8, #fbfefd); border-color: #cceae5; }
.wechat-card::after { content: ""; position: absolute; right: -70px; bottom: -70px; width: 190px; height: 190px; border: 1px solid rgba(23,105,232,.1); border-radius: 50%; }
.wechat-card-copy { align-self: start; }
.wechat-badge { display: inline-flex; padding: 6px 10px; color: var(--brand-dark); background: white; border: 1px solid #c7d9ef; border-radius: 999px; font-size: 11px; font-weight: 800; }
.wechat-card h3 { margin: 24px 0 10px; font-size: 30px; }
.wechat-card p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.qr-image-link { position: relative; z-index: 1; grid-column: 2; grid-row: 1 / 3; align-self: center; display: block; padding: 12px; background: white; border: 1px solid #d2dce8; border-radius: 20px; box-shadow: 0 14px 35px rgba(38,73,118,.1); transition: transform .2s ease, box-shadow .2s ease; }
.qr-image-link:hover { transform: translateY(-4px) scale(1.01); box-shadow: 0 20px 45px rgba(38,73,118,.16); }
.qr-image-link img { width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; border-radius: 12px; }
.qr-open { position: relative; z-index: 1; grid-column: 1; grid-row: 2; align-self: end; width: max-content; color: var(--brand-dark); font-size: 13px; font-weight: 750; }
.wechat-tip { margin: 24px 0 0; padding: 16px 20px; color: #637187; background: #f7f9fc; border-left: 3px solid var(--cyan); border-radius: 0 12px 12px 0; font-size: 13px; }
.wechat-tip strong { color: var(--ink-strong); }

.site-footer { padding: 62px 0 28px; color: #5e6d82; background: #edf2f8; border-top: 1px solid #dbe4ef; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; }
.footer-grid h2, .footer-grid h3 { color: var(--ink-strong); }
.footer-grid h2 { font-size: 24px; }
.footer-grid h3 { font-size: 14px; }
.footer-links { display: grid; gap: 8px; font-size: 14px; }
.footer-links a:hover { color: var(--brand-dark); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 46px; padding-top: 20px; border-top: 1px solid #d7e0eb; color: #526176; font-size: 12px; }
.footer-bottom a:hover { color: var(--brand-dark); }
.admin-wrap { width: min(1180px, calc(100% - 40px)); margin: 36px auto; }
.admin-table { width: 100%; border-collapse: collapse; background: white; font-size: 13px; }
.admin-table th, .admin-table td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.admin-table th { background: #edf2f8; }

.motion-ready [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.65,.3,1), transform .7s cubic-bezier(.2,.65,.3,1); }
.motion-ready [data-reveal][data-delay="1"] { transition-delay: .08s; }
.motion-ready [data-reveal][data-delay="2"] { transition-delay: .16s; }
.motion-ready [data-reveal][data-delay="3"] { transition-delay: .24s; }
.motion-ready [data-reveal][data-delay="4"] { transition-delay: .32s; }
.motion-ready [data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .hero-grid, .content-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-panel { max-width: 650px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .service-card-ai { grid-template-columns: 64px 1fr; }
  .service-card-ai p { grid-column: 2; }
  .service-card-ai .arrow-link { grid-column: 2; width: max-content; }
  .process { grid-template-columns: 1fr 1fr; }
  .process-item::after { display: none; }
  .trust-card { grid-template-columns: 1fr 1fr; }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .sticky-title { position: static; }
  .map-card { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .brand { min-width: 0; }
  .brand-name small { display: none; }
  .menu-toggle { display: block; }
  .nav { flex-wrap: wrap; padding: 15px 0; }
  .nav-links { display: none; width: 100%; align-items: stretch; flex-direction: column; gap: 0; padding: 12px 0 6px; }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 11px 4px; border-bottom: 1px solid var(--line); }
  .nav-links a::after { display: none; }
  .nav-cta { margin-top: 8px; text-align: center; }
  .hero { padding: 76px 0 92px; }
  .hero-grid { gap: 42px; }
  .section { padding: 74px 0; }
  .section-head, .cta-inner { align-items: start; flex-direction: column; }
  .cards, .about-home-grid, .proof-grid, .insight-grid, .footer-grid, .form-grid, .case-shell, .wechat-grid { grid-template-columns: 1fr; }
  .form-field.full { grid-column: auto; }
  .service-card { min-height: auto; }
  .service-card h3 { margin-top: 38px; }
  .service-card-ai { display: block; min-height: auto; }
  .service-card-ai h3 { margin: 34px 0 14px; }
  .service-card-ai p { margin-bottom: 24px; }
  .company-story, .map-card { min-height: auto; }
  .map-card { grid-template-columns: 1fr 1fr; }
  .case-placeholder { min-height: 260px; }
  .footer-bottom { flex-direction: column; }
}
@media (max-width: 520px) {
  .container { width: min(100% - 28px, 1160px); }
  h1 { font-size: 42px; }
  .trust-card, .process, .map-card { grid-template-columns: 1fr; }
  .trust-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .trust-item:last-child { border-bottom: 0; }
  .form-card, .company-story, .case-copy { padding: 24px; }
  .wechat-card { grid-template-columns: 1fr; padding: 24px; }
  .qr-image-link { grid-column: 1; grid-row: auto; width: min(100%, 300px); justify-self: center; }
  .qr-open { grid-column: 1; grid-row: auto; }
  .map-info { padding: 28px; }
  .hero-note { align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .motion-ready [data-reveal] { opacity: 1; transform: none; }
}