:root {
  --ink: #0c1d2b;
  --ink-soft: #243746;
  --muted: #6b7c86;
  --line: #dce6e9;
  --paper: #f6f9f8;
  --white: #ffffff;
  --cyan: #00a7b5;
  --cyan-deep: #007c8b;
  --yellow: #f6d54b;
  --blue: #dff5f7;
  --radius-lg: 28px;
  --radius-md: 16px;
  --shadow: 0 18px 50px rgba(13, 42, 51, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.7; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { border: 0; cursor: pointer; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.section { padding: 120px 0; }
.section-shell { overflow: hidden; }

.site-header { position: absolute; top: 0; left: 0; right: 0; z-index: 10; color: var(--white); }
.header-inner { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border-bottom: 1px solid rgba(255,255,255,.16); }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; color: var(--ink); background: var(--yellow); font: 800 12px/1 Manrope, sans-serif; letter-spacing: .04em; }
.brand-copy, .footer-brand > div { display: grid; gap: 0; line-height: 1.25; }
.brand-copy strong, .footer-brand strong { font-size: 16px; font-weight: 800; }
.brand-copy small, .footer-brand small { opacity: .66; font-size: 10px; letter-spacing: .06em; }
.site-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.site-nav a { padding: 8px 0; color: rgba(255,255,255,.7); font-size: 13px; transition: color .2s ease; }
.site-nav a:hover, .site-nav a.active { color: var(--white); }
.site-nav a.active { position: relative; }
.site-nav a.active::after { position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: var(--yellow); content: ""; }
.header-cta { display: inline-flex; align-items: center; gap: 9px; padding: 11px 17px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; color: var(--white); font-size: 13px; font-weight: 700; transition: background .2s, color .2s; }
.header-cta:hover { color: var(--ink); background: var(--yellow); border-color: var(--yellow); }
.header-cta svg { width: 15px; height: 15px; }
.menu-toggle, .mobile-nav { display: none; }

.hero { min-height: 720px; padding: 170px 0 108px; color: var(--white); background: var(--ink); }
.hero-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(420px, 1.05fr); align-items: center; gap: clamp(50px, 8vw, 120px); }
.hero-copy { padding-bottom: 18px; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 9px; color: var(--cyan); font: 800 11px/1.2 Manrope, "Noto Sans SC", sans-serif; letter-spacing: .15em; text-transform: uppercase; }
.eyebrow { color: rgba(255,255,255,.68); }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--yellow); box-shadow: 0 0 0 5px rgba(246,213,75,.16); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 630px; margin: 25px 0 24px; font-size: clamp(44px, 5.3vw, 76px); line-height: 1.17; letter-spacing: -.045em; font-weight: 900; }
h1 em, h2 em { color: var(--yellow); font-style: normal; }
.hero-lead { max-width: 490px; margin-bottom: 34px; color: rgba(255,255,255,.69); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 25px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 12px 20px; border-radius: 999px; font-size: 14px; font-weight: 800; transition: transform .2s, background .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button svg { width: 17px; height: 17px; }
.button-primary { color: var(--ink); background: var(--yellow); }
.button-primary:hover { background: #ffe578; }
.button-quiet { color: var(--white); border: 1px solid rgba(255,255,255,.28); }
.button-quiet:hover { border-color: var(--white); }
.hero-note { display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,.5); font-size: 12px; }
.hero-note svg { width: 16px; height: 16px; color: var(--cyan); }
.hero-visual { position: relative; min-height: 440px; }
.hero-photo-wrap { position: absolute; top: 0; right: 0; width: min(92%, 520px); height: 415px; overflow: hidden; border-radius: 34px 34px 8px 34px; background: #183341; }
.hero-photo { width: 100%; height: 100%; object-fit: cover; opacity: .86; filter: saturate(.82); }
.hero-photo-wrap::after { position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.2); border-radius: inherit; content: ""; }
.photo-label { position: absolute; right: 18px; bottom: 18px; display: inline-flex; align-items: center; gap: 8px; padding: 8px 11px; border-radius: 999px; color: var(--white); background: rgba(12,29,43,.74); backdrop-filter: blur(8px); font-size: 11px; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); }
.signal-card { position: absolute; bottom: 25px; left: -16px; display: flex; align-items: center; gap: 12px; width: 250px; padding: 15px; border: 1px solid rgba(12,29,43,.08); border-radius: 15px; color: var(--ink); background: var(--white); box-shadow: var(--shadow); }
.signal-icon, .service-icon, .process-icon, .advantage-icon, .meta-icon { display: grid; place-items: center; flex: 0 0 auto; }
.signal-icon { width: 40px; height: 40px; border-radius: 12px; color: var(--cyan-deep); background: var(--blue); }
.signal-icon svg { width: 20px; height: 20px; }
.signal-card > div { display: grid; gap: 1px; }
.signal-card strong { font-size: 13px; }
.signal-card small { color: var(--muted); font-size: 10px; }
.signal-arrow { display: grid; place-items: center; width: 28px; height: 28px; margin-left: auto; border-radius: 50%; color: var(--ink); background: var(--yellow); }
.signal-arrow svg { width: 14px; height: 14px; }
.hero-stamp { position: absolute; top: 24px; left: 0; display: grid; grid-template-columns: auto auto; align-items: center; gap: 9px; padding: 12px 14px; color: var(--white); border: 1px solid rgba(255,255,255,.22); background: rgba(12,29,43,.56); backdrop-filter: blur(8px); }
.hero-stamp strong { color: var(--yellow); font: 800 25px/1 Manrope, sans-serif; }
.hero-stamp span { color: rgba(255,255,255,.7); font-size: 10px; line-height: 1.35; }

.trust-bar { color: var(--ink); background: var(--yellow); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr) 1.18fr; }
.trust-item { display: flex; align-items: center; gap: 13px; min-height: 104px; padding: 18px 20px; border-right: 1px solid rgba(12,29,43,.15); }
.trust-item:first-child { padding-left: 0; }
.trust-item strong, .trust-item small { display: block; line-height: 1.3; }
.trust-item strong { font-size: 13px; }
.trust-item small { margin-top: 4px; color: rgba(12,29,43,.62); font-size: 10px; }
.trust-number { color: rgba(12,29,43,.45); font: 800 12px/1 Manrope, sans-serif; }
.trust-highlight { gap: 10px; padding-right: 0; border-right: 0; }
.trust-highlight > svg:first-child { width: 21px; height: 21px; }
.trust-arrow { width: 17px; height: 17px; margin-left: auto; }

.section-light { background: var(--paper); }
.section-heading { margin-bottom: 54px; }
.split-heading { display: grid; grid-template-columns: 1fr .72fr; align-items: end; gap: 40px; }
.section-heading h2, .why-copy h2, .contact-copy h2 { margin: 15px 0 0; font-size: clamp(32px, 4vw, 54px); line-height: 1.2; letter-spacing: -.045em; }
.split-heading p { max-width: 390px; margin: 0 0 3px auto; color: var(--muted); font-size: 14px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.service-card { min-height: 330px; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); transition: transform .22s, box-shadow .22s; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.service-card-featured { color: var(--white); border-color: var(--cyan-deep); background: var(--cyan-deep); }
.service-top { display: flex; align-items: center; justify-content: space-between; }
.service-index, .process-number { color: var(--muted); font: 800 11px/1 Manrope, sans-serif; letter-spacing: .08em; }
.service-card-featured .service-index { color: rgba(255,255,255,.55); }
.service-icon { width: 48px; height: 48px; border-radius: 14px; color: var(--cyan-deep); background: var(--blue); }
.service-card-featured .service-icon { color: var(--ink); background: var(--yellow); }
.service-icon svg { width: 23px; height: 23px; }
.service-card h3 { margin: 68px 0 10px; font-size: 22px; letter-spacing: -.03em; }
.service-card p { min-height: 76px; margin-bottom: 18px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.service-card-featured p { color: rgba(255,255,255,.7); }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 800; }
.text-link svg { width: 14px; height: 14px; transition: transform .2s; }
.text-link:hover svg { transform: translate(2px, -2px); }

.section-ink { color: var(--white); background: var(--ink); }
.why-grid { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); align-items: center; gap: clamp(60px, 8vw, 120px); }
.why-media { position: relative; min-height: 520px; }
.why-media img { width: 100%; height: 520px; object-fit: cover; border-radius: 34px 8px 34px 34px; opacity: .75; filter: saturate(.68); }
.why-media::after { position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.2); border-radius: 34px 8px 34px 34px; content: ""; }
.media-caption { position: absolute; bottom: 24px; left: 24px; display: grid; gap: 8px; }
.media-caption span { color: var(--yellow); font: 800 10px/1 Manrope, sans-serif; letter-spacing: .16em; }
.media-caption strong { font-size: 22px; line-height: 1.3; }
.section-kicker-light { color: var(--yellow); }
.why-copy h2 { margin-bottom: 21px; }
.why-copy > p { max-width: 510px; color: rgba(255,255,255,.62); font-size: 14px; }
.advantage-list { display: grid; gap: 18px; margin: 30px 0; }
.advantage-item { display: flex; align-items: flex-start; gap: 13px; }
.advantage-icon { width: 35px; height: 35px; margin-top: 1px; border: 1px solid rgba(255,255,255,.25); border-radius: 10px; color: var(--yellow); }
.advantage-icon svg { width: 17px; height: 17px; }
.advantage-item strong, .advantage-item small { display: block; line-height: 1.4; }
.advantage-item strong { font-size: 14px; }
.advantage-item small { margin-top: 3px; color: rgba(255,255,255,.5); font-size: 11px; }
.button-outline-light { color: var(--white); border: 1px solid rgba(255,255,255,.32); }
.button-outline-light:hover { border-color: var(--yellow); color: var(--ink); background: var(--yellow); }

.centered-heading { text-align: center; }
.centered-heading p { margin: 16px auto 0; color: var(--muted); font-size: 14px; }
.process-grid { display: grid; grid-template-columns: 1fr 54px 1fr 54px 1fr 54px 1fr; align-items: start; }
.process-item { position: relative; text-align: center; }
.process-number { display: block; margin-bottom: 18px; color: var(--cyan-deep); }
.process-icon { width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 50%; color: var(--cyan-deep); background: var(--blue); }
.process-icon svg { width: 23px; height: 23px; }
.process-item h3 { margin-bottom: 7px; font-size: 17px; }
.process-item p { margin: 0 auto; max-width: 170px; color: var(--muted); font-size: 12px; line-height: 1.75; }
.process-line { height: 1px; margin-top: 102px; background: var(--line); }

.contact-section { color: var(--white); background: var(--cyan-deep); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; align-items: start; gap: clamp(50px, 10vw, 140px); }
.contact-copy h2 { margin-bottom: 22px; }
.contact-copy > p { max-width: 360px; color: rgba(255,255,255,.72); font-size: 14px; }
.contact-meta { display: flex; align-items: flex-start; gap: 12px; margin-top: 25px; }
.meta-icon { width: 36px; height: 36px; border: 1px solid rgba(255,255,255,.3); border-radius: 10px; color: var(--yellow); }
.meta-icon svg { width: 17px; height: 17px; }
.contact-meta strong, .contact-meta small { display: block; line-height: 1.4; }
.contact-meta strong { font-size: 13px; }
.contact-meta small { margin-top: 3px; color: rgba(255,255,255,.58); font-size: 11px; }
.contact-form { padding: 28px; color: var(--ink); border-radius: 22px; background: var(--white); box-shadow: 0 22px 50px rgba(0,0,0,.13); }
.form-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 23px; padding-bottom: 17px; border-bottom: 1px solid var(--line); font-size: 14px; font-weight: 800; }
.form-heading svg { width: 19px; height: 19px; color: var(--cyan-deep); }
.contact-form label { display: grid; gap: 7px; margin-bottom: 14px; color: var(--ink-soft); font-size: 11px; font-weight: 700; }
.contact-form input, .contact-form select { width: 100%; height: 43px; padding: 0 13px; color: var(--ink); border: 1px solid var(--line); border-radius: 9px; outline: none; background: var(--paper); font-size: 13px; }
.contact-form input:focus, .contact-form select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0,167,181,.11); }
.button-dark { width: 100%; margin-top: 5px; color: var(--white); background: var(--ink); }
.button-dark:hover { background: #142e40; }
.form-tip { display: flex; align-items: center; gap: 5px; margin: 11px 0 0; color: var(--muted); font-size: 10px; }
.form-tip svg { width: 13px; height: 13px; }
.form-success { display: none; align-items: center; gap: 8px; margin-top: 12px; padding: 9px 11px; color: #166a52; border-radius: 9px; background: #e4f5ed; font-size: 11px; }
.form-success.visible { display: flex; }
.form-success svg { width: 15px; height: 15px; }

.site-footer { color: rgba(255,255,255,.62); background: #071620; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 92px; }
.footer-brand { color: var(--white); }
.footer-brand .brand-mark { width: 32px; height: 32px; font-size: 10px; }
.footer-legal { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 4px 16px; }
.footer-legal p { margin: 0; font-size: 11px; }
.footer-legal a { color: rgba(255,255,255,.76); font-size: 11px; transition: color .2s; }
.footer-legal a:hover { color: var(--yellow); }
.back-top { display: grid; place-items: center; width: 34px; height: 34px; color: var(--ink); border-radius: 50%; background: var(--yellow); }
.back-top svg { width: 16px; height: 16px; }

@media (max-width: 920px) {
  .container { width: min(100% - 36px, 700px); }
  .site-nav, .header-cta { display: none; }
  .menu-toggle { display: grid; place-items: center; width: 40px; height: 40px; color: var(--white); border: 1px solid rgba(255,255,255,.25); border-radius: 50%; background: transparent; }
  .menu-toggle svg { width: 18px; height: 18px; }
  .mobile-nav { display: none; flex-direction: column; gap: 2px; padding: 15px 18px 18px; border-bottom: 1px solid rgba(255,255,255,.15); background: var(--ink); }
  .mobile-nav.open { display: flex; }
  .mobile-nav a { padding: 9px 0; color: rgba(255,255,255,.72); font-size: 13px; }
  .hero { min-height: auto; padding: 142px 0 76px; }
  .hero-grid, .why-grid, .contact-grid { grid-template-columns: 1fr; gap: 54px; }
  .hero-visual { min-height: 390px; }
  .hero-photo-wrap { width: calc(100% - 22px); height: 360px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-item, .trust-item:first-child { padding: 16px 18px; border-bottom: 1px solid rgba(12,29,43,.15); }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(3), .trust-item:nth-child(4) { border-bottom: 0; }
  .split-heading { grid-template-columns: 1fr; gap: 16px; }
  .split-heading p { margin: 0; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 260px; }
  .service-card h3 { margin-top: 45px; }
  .why-media, .why-media img { min-height: 400px; height: 400px; }
  .process-grid { grid-template-columns: 1fr; gap: 27px; }
  .process-line { width: 1px; height: 24px; margin: -7px auto; }
  .contact-grid { gap: 36px; }
}

@media (max-width: 560px) {
  .container { width: min(100% - 30px, 420px); }
  .section { padding: 82px 0; }
  .header-inner { min-height: 76px; }
  .brand-copy small { font-size: 9px; }
  .hero { padding-top: 124px; padding-bottom: 62px; }
  h1 { font-size: clamp(40px, 12vw, 55px); }
  .hero-lead { font-size: 15px; }
  .hero-visual { min-height: 335px; }
  .hero-photo-wrap { width: calc(100% - 10px); height: 315px; border-radius: 25px 25px 7px 25px; }
  .signal-card { bottom: 8px; left: 0; width: 224px; padding: 12px; }
  .hero-stamp { top: 14px; left: 5px; }
  .photo-label { right: 10px; bottom: 10px; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-item { min-height: 91px; gap: 9px; padding: 13px 10px; }
  .trust-item:first-child, .trust-item:nth-child(3) { padding-left: 0; }
  .trust-item strong { font-size: 12px; }
  .trust-item small { font-size: 9px; }
  .trust-highlight > svg:first-child { width: 18px; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2, .why-copy h2, .contact-copy h2 { font-size: 35px; }
  .why-media, .why-media img { min-height: 330px; height: 330px; }
  .contact-form { padding: 21px 17px; }
  .footer-inner { min-height: 110px; flex-wrap: wrap; padding: 22px 0; }
  .footer-legal { order: 3; width: 100%; justify-content: flex-start; }
}