:root {
  --ink: #f4f1e8;
  --muted: #a6b8b4;
  --bg: #061b1c;
  --panel: rgba(14, 49, 48, 0.76);
  --line: rgba(212, 236, 226, 0.14);
  --mint: #74e0b9;
  --lime: #d7f46f;
  --orange: #ff9d62;
  --serif: Georgia, "Noto Serif SC", "Songti SC", serif;
  --sans: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 8%, rgba(24, 129, 105, .22), transparent 32rem),
    linear-gradient(160deg, #061b1c 0%, #082526 56%, #051617 100%);
  font-family: var(--sans);
  overflow-x: hidden;
}
a { color: inherit; }
button, input, select, textarea { font: inherit; }
.shell { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }

.ambient { position: fixed; pointer-events: none; border-radius: 50%; filter: blur(2px); opacity: .4; }
.ambient-a { width: 26rem; height: 26rem; border: 1px solid rgba(116,224,185,.2); right: -11rem; top: 13rem; }
.ambient-b { width: 18rem; height: 18rem; border: 1px solid rgba(215,244,111,.12); left: -8rem; bottom: 18rem; }

.site-header { height: 88px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-size: .92rem; letter-spacing: .12em; }
.brand strong { color: var(--mint); }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--lime); color: #0a2825; font-weight: 900; letter-spacing: 0; }
.header-link { text-decoration: none; color: var(--muted); font-size: .9rem; transition: color .2s; }
.header-link:hover { color: var(--ink); }

.hero { padding: 96px 0 54px; text-align: center; }
.eyebrow, .section-index { color: var(--mint); text-transform: uppercase; font-size: .78rem; letter-spacing: .16em; font-weight: 700; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; }
.eyebrow span { width: 26px; height: 1px; background: var(--mint); }
.hero h1 { margin: 22px auto; max-width: 920px; font-family: var(--serif); font-size: clamp(3.1rem, 8vw, 6.8rem); line-height: .98; letter-spacing: -.055em; font-weight: 500; }
.hero h1 em { font-style: italic; color: var(--lime); }
.hero-copy { width: min(680px, 100%); margin: 0 auto; color: var(--muted); font-size: clamp(1rem, 2vw, 1.15rem); line-height: 1.85; }
.promise-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 32px; }
.promise-row span { padding: 8px 13px; color: #bdd0cb; border: 1px solid var(--line); border-radius: 999px; font-size: .8rem; }

.contact-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: 18px; align-items: stretch; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 26px; box-shadow: 0 24px 80px rgba(0,0,0,.16); backdrop-filter: blur(18px); }
.qr-card { padding: clamp(28px, 5vw, 52px); min-height: 610px; text-align: center; position: relative; overflow: hidden; }
.qr-card::before { content: ""; position: absolute; inset: -50% auto auto -20%; width: 26rem; height: 26rem; background: rgba(116,224,185,.07); border-radius: 50%; }
.panel-kicker { display: inline-block; padding: 6px 10px; border-radius: 7px; background: var(--lime); color: #15312c; font-size: .72rem; font-weight: 800; }
.qr-card h2 { margin: 20px 0 10px; font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.15rem); font-weight: 500; }
.qr-card > p { color: var(--muted); margin: 0 auto 26px; max-width: 500px; line-height: 1.75; }
.qr-wrap { width: min(280px, 82%); aspect-ratio: 1; margin: 0 auto; padding: 16px; background: #f6f4ec; border-radius: 22px; position: relative; overflow: hidden; box-shadow: 0 18px 55px rgba(0,0,0,.28); }
.qr-placeholder { height: 100%; display: grid; place-content: center; gap: 4px; position: relative; color: #17332e; border: 1px dashed #a8bbb5; border-radius: 12px; }
.wecom-viewport { position: relative; width: 100%; aspect-ratio: 1; overflow: hidden; background: white; }
.wecom-image { position: absolute; width: 203.664%; max-width: none; height: auto; left: -51.724%; top: -215.517%; }
.qr-card::before { pointer-events: none; }
.qr-card .qr-help { margin-top: 20px; font-size: 14px; }
#wechat { scroll-margin-top: 24px; }
.copy-btn { text-decoration: none; }
.qr-placeholder strong { font-size: 1rem; }.qr-placeholder small { color: #73847f; }
.corner { position: absolute; width: 35px; height: 35px; border-color: #17332e; border-style: solid; }
.corner-tl { top: 18px; left: 18px; border-width: 5px 0 0 5px; }.corner-tr { top: 18px; right: 18px; border-width: 5px 5px 0 0; }
.corner-bl { bottom: 18px; left: 18px; border-width: 0 0 5px 5px; }.corner-br { bottom: 18px; right: 18px; border-width: 0 5px 5px 0; }
.scan-line { position: absolute; left: 14px; right: 14px; height: 2px; background: linear-gradient(90deg, transparent, #19b98a, transparent); box-shadow: 0 0 14px #19b98a; animation: scan 3s ease-in-out infinite; }
@keyframes scan { 0%,100% { top: 15%; opacity:.3; } 50% { top: 85%; opacity:1; } }
.steps { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.steps span { color: #abc2bc; font-size: .76rem; border-right: 1px solid var(--line); padding-right: 10px; }.steps span:last-child { border: 0; }

.contact-side { display: grid; grid-template-rows: auto auto 1fr; gap: 18px; }
.mini-panel { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 27px 28px; }
.mini-panel div { display: grid; gap: 7px; min-width: 0; }.mini-panel strong { font-size: 1.05rem; overflow-wrap: anywhere; }.mini-panel small { color: var(--muted); }
.mini-label { color: var(--orange); font-size: .76rem; letter-spacing: .12em; font-weight: 700; }
.copy-btn { flex: 0 0 auto; color: var(--ink); background: transparent; border: 1px solid var(--line); border-radius: 10px; padding: 8px 11px; cursor: pointer; }
.copy-btn:hover { border-color: var(--mint); color: var(--mint); }
.service-panel { padding: 31px 30px; }
.service-panel ul { list-style: none; margin: 20px 0 0; padding: 0; }
.service-panel li { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 18px 0; border-top: 1px solid var(--line); }
.service-panel li span { font-family: var(--serif); font-size: 1.18rem; }.service-panel li b { color: var(--muted); font-size: .76rem; font-weight: 500; text-align: right; }

.process { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; padding: 130px 0; }
.process h2, .brief h2 { font-family: var(--serif); font-size: clamp(2.25rem, 4.8vw, 4rem); line-height: 1.16; font-weight: 500; letter-spacing: -.035em; margin: 18px 0 0; }
.process ol { list-style: none; padding: 0; margin: 0; }
.process li { display: grid; grid-template-columns: 50px 1fr; gap: 10px; align-items: start; padding: 22px 0; border-top: 1px solid var(--line); }
.process li b { color: var(--mint); font-size: .75rem; }.process li div { display: grid; gap: 7px; }.process li strong { font-size: 1.08rem; }.process li span { color: var(--muted); font-size: .9rem; }

.brief { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; background: #e9eee7; color: #0b2926; border-radius: 32px; padding: clamp(30px, 6vw, 68px); }
.brief .section-index { color: #197c64; }.brief-copy > p { color: #5f716d; line-height: 1.8; }
.privacy-note { margin-top: 36px; padding: 16px 18px; border-left: 3px solid #1e9b79; background: rgba(255,255,255,.5); color: #647570; font-size: .8rem; line-height: 1.6; }
.brief-form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.brief-form label:not(.consent) { display: grid; gap: 9px; }.brief-form label > span { font-size: .82rem; font-weight: 700; }
.brief-form input:not([type="checkbox"]), .brief-form select, .brief-form textarea { width: 100%; border: 0; border-bottom: 1px solid #b5c5c0; background: transparent; color: #0b2926; border-radius: 0; padding: 12px 2px; outline: none; }
.brief-form textarea { resize: vertical; }.brief-form input:focus, .brief-form select:focus, .brief-form textarea:focus { border-color: #16795f; }
.full-field { grid-column: 1 / -1; }
.consent { display: flex; align-items: center; gap: 9px; color: #667a74; }.consent input { accent-color: #146f59; }.consent span { font-weight: 500 !important; }
.submit-btn { border: 0; border-radius: 13px; padding: 17px 20px; display: flex; align-items: center; justify-content: space-between; color: #f6f4ec; background: #0b302b; cursor: pointer; font-weight: 700; }
.submit-btn:hover { background: #125044; }.form-status { min-height: 22px; margin: 0; color: #176b57; font-size: .85rem; }

footer { display: flex; justify-content: space-between; gap: 20px; padding: 36px 0 50px; color: #7d9891; font-size: .75rem; }
.mobile-cta { display: none; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; }.scan-line { animation: none; top: 50%; } }
@media (max-width: 820px) {
  .shell { width: min(100% - 28px, 680px); }
  .site-header { height: 72px; }.header-link { font-size: 0; }.header-link span { font-size: 1rem; }
  .hero { padding: 72px 0 38px; text-align: left; }.hero-copy { margin-left: 0; }.promise-row { justify-content: flex-start; }
  .contact-grid, .process, .brief { grid-template-columns: 1fr; }.contact-grid { gap: 14px; }.qr-card { min-height: auto; }.contact-side { gap: 14px; }
  .process { gap: 42px; padding: 94px 0; }.brief { gap: 44px; }
  footer { padding-bottom: 92px; }
  .mobile-cta { display: block; position: fixed; z-index: 20; left: 14px; right: 14px; bottom: 14px; padding: 15px 18px; text-align: center; border-radius: 14px; background: var(--lime); color: #0b2b27; font-weight: 800; text-decoration: none; box-shadow: 0 14px 40px rgba(0,0,0,.35); }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 3.25rem; }.qr-card { padding: 28px 20px; }.mini-panel { padding: 22px 20px; }
  .brief { padding: 28px 20px; border-radius: 24px; }.brief-form { grid-template-columns: 1fr; }.full-field { grid-column: auto; }
  .service-panel li { grid-template-columns: 1fr; }.service-panel li b { text-align: left; }.steps span { border: 0; padding: 0; width: 100%; }
  footer { flex-direction: column; }
}