:root{--primary: #1890ff;--primary-deep: #0f5db8;--success: #13ce66;--danger: #ff4949;--bg: #eef1f6;--surface: #ffffff;--surface-soft: #f8fbff;--line: #dfe4ed;--line-soft: #e6ebf5;--text: #303133;--text-2: #606266;--muted: #909399;--shadow: 0 12px 28px rgba(15, 44, 74, .1);--radius: 18px;--hero-gradient: linear-gradient(135deg, #304156 0%, #1f2d3d 52%, #1890ff 100%);--font: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font)}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}img{max-width:100%;display:block}[hidden]{display:none!important}.site-shell{min-height:100vh}.section,.hero,.legal-hero,.site-footer{padding:72px 24px}.section--alt{background:linear-gradient(180deg,#f8fbff,#eef1f6)}.section-inner{max-width:1200px;margin:0 auto}.site-header{position:sticky;top:0;z-index:30;background:#fffffff0;border-bottom:1px solid var(--line-soft);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.site-header__inner{max-width:1200px;margin:0 auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 24px}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand__mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:#fff;font-weight:700;background:var(--hero-gradient);box-shadow:0 10px 24px #1890ff40}.brand__copy{display:grid;gap:2px}.brand__copy strong{font-size:15px}.brand__copy span{color:var(--muted);font-size:12px}.site-nav{display:flex;align-items:center;gap:18px;flex:1;justify-content:center}.site-nav a{color:var(--text-2);font-size:13px;font-weight:600}.site-nav a:hover{color:var(--primary)}.site-nav--static{flex:0 1 auto}.lang-switch{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:2px;background:#fff}.lang-switch__button{border:0;background:transparent;border-radius:999px;padding:7px 12px;color:var(--text-2);cursor:pointer;font-size:12px;font-weight:600}.lang-switch__button.is-active{background:#1890ff1a;color:var(--primary)}.menu-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text-2);cursor:pointer}.hero{overflow:hidden;color:#fff;background:radial-gradient(circle at top left,rgba(255,255,255,.15),transparent 34%),radial-gradient(circle at 80% 18%,rgba(24,144,255,.3),transparent 22%),var(--hero-gradient)}.hero__inner{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center}.hero__eyebrow{display:inline-flex;align-items:center;border-radius:999px;padding:7px 12px;font-size:12px;background:#ffffff1a;border:1px solid rgba(255,255,255,.18);margin-bottom:18px}.hero h1{margin:0;font-size:clamp(36px,5vw,60px);line-height:1.05;letter-spacing:-.03em}.hero p{margin:18px 0 0;line-height:1.75;color:#ffffffe0;font-size:16px}.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border-radius:14px;padding:0 18px;border:0;cursor:pointer;font-weight:700;letter-spacing:.01em;transition:transform .2s ease,box-shadow .2s ease}.btn:hover{transform:translateY(-1px)}.btn--primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px #1890ff47}.btn--secondary{color:#fff;background:#ffffff1a;border:1px solid rgba(255,255,255,.18)}.btn--light,.btn--ghost{background:#fff;color:var(--primary);border:1px solid rgba(24,144,255,.16)}.hero-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px}.hero-note,.floating-card,.trust-card,.panel,.feature-card,.capability-card,.detail-panel,.flow-card,.faq-item,.contact-card,.legal-card{border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);box-shadow:0 8px 20px #0c25440d}.hero-note{min-height:96px;padding:14px 16px;background:#ffffff1a;border-color:#ffffff24}.hero-note strong,.floating-card h3{display:block;margin-bottom:8px}.hero-note span,.floating-card__list span{display:block;font-size:13px;line-height:1.6;color:#ffffffd1}.hero-showcase{display:grid;gap:16px;justify-items:end}.phone-stack{position:relative;width:min(420px,100%);min-height:470px}.phone-card{position:absolute;width:250px;padding:12px;border-radius:30px;background:#09111d;border:1px solid rgba(255,255,255,.08);box-shadow:0 24px 48px #0000003d}.phone-card img{aspect-ratio:9 / 19;object-fit:cover;border-radius:22px;background:#d7e3f1}.phone-card--one{top:0;right:130px;transform:rotate(-8deg)}.phone-card--two{top:74px;right:0;transform:rotate(8deg)}.floating-card{width:min(420px,100%);padding:18px;background:#ffffff1a;border-color:#ffffff2e;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.floating-card h3{margin-top:0;color:#fff}.trust-strip{padding:0 24px;margin-top:-24px;position:relative;z-index:2}.trust-strip__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.trust-card{padding:18px}.trust-card__label{color:var(--muted);font-size:12px;margin-bottom:6px}.trust-card__value{font-size:17px;font-weight:700}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:26px}.section-kicker{color:var(--primary);text-transform:uppercase;letter-spacing:.14em;font-size:11px;font-weight:700;margin-bottom:10px}.section-head h2{margin:0;font-size:clamp(28px,4vw,42px);line-height:1.1;max-width:640px}.section-head p{margin:0;max-width:460px;color:var(--text-2);line-height:1.8}.story-grid,.feature-grid,.gallery-grid,.detail-layout,.flow-grid,.contact-grid,.site-footer__inner{display:grid;gap:20px}.story-grid,.contact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.panel,.feature-card,.flow-card,.contact-card,.legal-card{padding:22px}.panel--dark{background:linear-gradient(180deg,#32465d,#243244);color:#fff;border-color:#ffffff0f}.panel p,.feature-card p,.flow-card span,.contact-card p,.legal-card span{color:var(--text-2);line-height:1.75}.panel--dark p{color:#ffffffe0}.bullet-list,.detail-list,.contact-meta,.site-footer__links{display:grid;gap:12px}.bullet-item,.detail-item{padding:18px;border-radius:16px;background:var(--surface-soft);border:1px solid var(--line-soft)}.bullet-item strong,.detail-item strong,.flow-card strong,.legal-card strong,.contact-card h3,.feature-card h3,.capability-card h3{display:block;margin-bottom:8px}.feature-card__icon,.capability-card__icon{width:44px;height:44px;display:grid;place-items:center;border-radius:14px;margin-bottom:16px;background:#1890ff1a;color:var(--primary);font-weight:700}.gallery-grid{grid-template-columns:1.04fr .96fr;align-items:stretch}.gallery-stage{min-height:520px;padding:24px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,#ecf5ff,#fff)}.gallery-stage img{width:min(320px,100%);margin:0 auto;border-radius:24px;box-shadow:0 24px 42px #23354a2e}.gallery-stage__copy{margin-top:18px;text-align:center}.gallery-stage__copy strong{display:block;margin-bottom:8px;font-size:18px}.gallery-stage__copy span{color:var(--text-2);line-height:1.7}.gallery-controls{display:flex;justify-content:center;gap:10px;margin-top:18px}.gallery-thumbs{display:grid;gap:12px}.gallery-thumb{display:grid;grid-template-columns:94px 1fr;gap:12px;align-items:center;padding:12px;border-radius:16px;border:1px solid var(--line);background:#fff;cursor:pointer}.gallery-thumb img{width:94px;height:150px;object-fit:cover;border-radius:16px;background:#d7e3f1}.gallery-thumb.is-active{border-color:#1890ff5c;box-shadow:0 10px 22px #1890ff1a}.gallery-thumb strong{display:block;margin-bottom:6px}.gallery-thumb span{color:var(--text-2);font-size:13px;line-height:1.6}.bridge-banner{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:28px;border-radius:22px;border:1px solid rgba(24,144,255,.16);background:linear-gradient(135deg,#1890ff14,#30415614)}.bridge-banner h3{margin:0 0 8px;font-size:24px}.bridge-banner p{margin:0;color:var(--text-2);line-height:1.7;max-width:680px}.capability-grid{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:20px}.capability-card{padding:20px;text-align:left;cursor:pointer}.capability-card.is-active{border-color:#1890ff73;box-shadow:0 14px 30px #1890ff24}.detail-layout{grid-template-columns:320px 1fr}.detail-nav{display:grid;gap:10px;align-self:start;position:sticky;top:104px}.detail-nav__button{width:100%;text-align:left;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text-2);padding:14px 16px;cursor:pointer}.detail-nav__button.is-active{border-color:#1890ff73;color:var(--primary);background:#1890ff14}.detail-panel{display:none;padding:22px}.detail-panel.is-active{display:block}.detail-panels{position:relative}.faq-item{padding:0;overflow:hidden}.faq-item__question{width:100%;border:0;background:#fff;display:flex;justify-content:space-between;align-items:center;padding:18px;cursor:pointer;color:var(--text);font-weight:700;text-align:left}.faq-item__answer{display:none;padding:0 18px 18px;color:var(--text-2);line-height:1.8}.faq-item.is-open .faq-item__answer{display:block}.contact-card__pill{display:inline-flex;align-items:center;gap:8px;border-radius:999px;border:1px solid rgba(24,144,255,.16);background:#1890ff14;color:var(--primary);padding:7px 12px;font-size:12px;font-weight:700;margin-bottom:14px}.contact-card__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.contact-meta div{padding:14px;border-radius:14px;border:1px solid var(--line);background:#fff}.contact-meta strong{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}.contact-meta span{font-weight:600}.site-footer{background:#243244;color:#d6dfeb}.site-footer h3,.site-footer h4{margin:0 0 12px;color:#fff}.site-footer p,.site-footer a,.site-footer span{color:#c0cfdf;line-height:1.8;font-size:13px}.site-footer__inner{grid-template-columns:1.2fr .8fr .8fr}.legal-page{min-height:calc(100vh - 72px)}.legal-hero{background:linear-gradient(180deg,#1890ff14,#fff0);border-bottom:1px solid var(--line-soft)}.legal-grid{display:grid;gap:16px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;display:grid;place-items:center;padding:24px;background:#0f192685}.modal-card{width:min(640px,100%);border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:0 18px 40px #00000038}.modal-card__head,.modal-card__body,.modal-card__foot{padding:20px}.modal-card__head{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}.modal-card__head strong{display:block;margin-bottom:4px;font-size:18px}.modal-card__head span{color:var(--muted);font-size:13px}.modal-card__close{border:0;background:transparent;color:var(--muted);font-size:24px;cursor:pointer}.modal-card__body{display:grid;gap:16px}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{display:grid;gap:8px}.field--full{grid-column:1 / -1}.field label{font-size:12px;color:var(--text-2);font-weight:700}.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff}.field textarea{min-height:120px;resize:vertical}.field__error{display:none;color:var(--danger);font-size:12px}.field.is-invalid input,.field.is-invalid textarea{border-color:#ff494973;background:#ff49490a}.field.is-invalid .field__error{display:block}.submit-state{border-radius:14px;padding:14px 16px;font-size:13px;border:1px solid rgba(19,206,102,.22);background:#13ce6614;color:#178f4d}.modal-card__foot{display:flex;justify-content:flex-end;gap:10px}@media (max-width: 1100px){.hero__inner,.gallery-grid,.detail-layout,.story-grid,.contact-grid,.site-footer__inner{grid-template-columns:1fr}.feature-grid,.capability-grid,.trust-strip__grid,.hero-notes,.flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-showcase{justify-items:start}.detail-nav{position:static}}@media (max-width: 760px){.section,.hero,.legal-hero,.site-footer{padding:56px 16px}.site-header__inner{min-height:64px;padding:0 16px;flex-wrap:wrap}.site-nav{display:none;width:100%;flex-direction:column;align-items:stretch;padding-bottom:12px}.site-header.is-open .site-nav{display:flex}.site-nav a{padding:8px 0}.menu-toggle{display:inline-flex;align-items:center;justify-content:center}.hero-notes,.feature-grid,.capability-grid,.trust-strip__grid,.field-grid,.flow-grid{grid-template-columns:1fr}.phone-stack{min-height:360px}.phone-card{width:180px}.phone-card--one{right:88px}.gallery-thumb{grid-template-columns:72px 1fr}.gallery-thumb img{width:72px;height:114px}.bridge-banner{flex-direction:column;align-items:start}}