:root {
  --ink: #20383a;
  --muted: #718486;
  --paper: #fbfcf8;
  --wash: #edf7f5;
  --mint: #b9ead6;
  --green: #09a768;
  --coral: #e87861;
  --yellow: #f6ca67;
  --line: #dce9e4;
  --shadow: rgba(32, 56, 58, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--wash); }
body { min-width: 320px; margin: 0; color: var(--ink); background: var(--wash); font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0; }
button { font: inherit; }
.shell { width: min(100%, 1040px); margin: 0 auto; overflow: hidden; background: var(--paper); box-shadow: 0 0 0 1px rgba(32, 56, 58, .04); }
.topbar { display: flex; align-items: center; justify-content: space-between; min-height: 58px; padding: 0 clamp(18px, 4vw, 44px); border-bottom: 1px solid var(--line); background: rgba(251, 252, 248, .94); }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-size: 13px; font-weight: 900; letter-spacing: .04em; text-decoration: none; }
.brand-mark { display: grid; width: 24px; height: 24px; place-items: center; border-radius: 8px 8px 8px 2px; color: #fff; background: var(--green); font-size: 14px; }
.topbar-right { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 10px; font-weight: 700; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(9, 167, 104, .12); }
.hero { display: grid; grid-template-columns: 1fr auto; gap: 24px; padding: clamp(32px, 7vw, 70px) clamp(18px, 4vw, 44px) clamp(28px, 5vw, 52px); background: linear-gradient(135deg, var(--wash), #fffdf7 72%); }
.eyebrow { margin: 0 0 12px; color: var(--green); font-size: 10px; font-weight: 900; letter-spacing: .08em; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 700px; margin-bottom: 18px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(42px, 8vw, 82px); font-weight: 500; line-height: .98; letter-spacing: -.02em; }
h1 em, h2 em { color: var(--coral); font-style: italic; }
.hero-sub { max-width: 570px; margin-bottom: 22px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.hero-cta { display: inline-flex; min-height: 45px; align-items: center; gap: 18px; padding: 0 17px; border: 0; border-radius: 6px; color: #fff; background: var(--ink); font-size: 12px; font-weight: 800; cursor: pointer; transition: transform 160ms ease, background 160ms ease; }
.hero-cta:hover { background: var(--green); transform: translateY(-2px); }
.cta-arrow { font-size: 17px; }
.hero-note { align-self: end; min-width: 112px; padding: 13px 0 0 16px; border-left: 1px solid var(--coral); color: var(--muted); font-size: 10px; line-height: 1.5; }
.note-number { display: block; margin-bottom: 7px; color: var(--coral); font-family: Georgia, serif; font-size: 26px; line-height: 1; }
.category-nav { display: flex; gap: 8px; overflow-x: auto; padding: 0 clamp(18px, 4vw, 44px) 20px; scrollbar-width: none; background: var(--paper); }
.category-nav::-webkit-scrollbar { display: none; }
.category-chip { flex: 0 0 auto; min-height: 34px; padding: 0 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: transparent; font-size: 11px; font-weight: 800; cursor: pointer; }
.category-chip.is-active, .category-chip:hover { border-color: var(--ink); color: #fff; background: var(--ink); }
.catalog { padding: 0 clamp(18px, 4vw, 44px) clamp(34px, 6vw, 64px); }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 17px; border-top: 1px solid var(--line); padding-top: 22px; }
.section-heading .eyebrow { margin-bottom: 7px; }
h2 { margin-bottom: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(26px, 4vw, 42px); font-weight: 500; line-height: 1; }
.section-count { margin: 0 0 3px; color: var(--muted); font-size: 11px; font-weight: 700; }
.catalog-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 14px; }
.catalog-card { min-width: 0; }
.card-image { position: relative; display: block; width: 100%; aspect-ratio: 4 / 5; padding: 0; overflow: hidden; border: 0; border-radius: 5px; background: #eef4f1; cursor: zoom-in; }
.card-image img { display: block; width: 100%; height: 100%; object-fit: contain; transition: transform 320ms ease; }
.card-image:hover img { transform: scale(1.035); }
.image-tag { position: absolute; right: 9px; bottom: 9px; padding: 5px 7px; border-radius: 3px; color: var(--ink); background: rgba(251, 252, 248, .88); font-size: 9px; font-weight: 900; }
.view-icon { position: absolute; top: 9px; right: 9px; display: grid; width: 28px; height: 28px; place-items: center; border-radius: 50%; color: var(--ink); background: rgba(251, 252, 248, .88); font-size: 16px; }
.card-meta { display: flex; align-items: start; justify-content: space-between; gap: 8px; padding-top: 10px; }
.card-meta h3 { margin-bottom: 3px; font-size: 13px; line-height: 1.2; }
.card-meta p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.4; }
.card-action { flex: 0 0 auto; padding: 0; border: 0; color: var(--green); background: transparent; font-size: 11px; font-weight: 900; cursor: pointer; }
.card-action:hover { color: var(--coral); }
.catalog-card.is-hidden { display: none; }
.request-strip { display: grid; grid-template-columns: 38px 1fr auto; gap: 12px; align-items: center; margin: 0 clamp(18px, 4vw, 44px) 38px; padding: 14px 15px; border-radius: 7px; color: var(--ink); background: var(--mint); }
.request-symbol { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 50%; color: #fff; background: var(--green); font-weight: 900; }
.request-strip strong, .request-strip span { display: block; }
.request-strip strong { margin-bottom: 3px; font-size: 12px; }
.request-strip span { font-size: 10px; line-height: 1.4; }
.strip-action { display: grid; width: 34px; height: 34px; place-items: center; border: 0; border-radius: 50%; color: #fff; background: var(--ink); font-size: 17px; cursor: pointer; }
.contact-section { display: grid; grid-template-columns: 1fr minmax(170px, 240px); gap: clamp(24px, 7vw, 80px); align-items: center; padding: clamp(30px, 6vw, 60px) clamp(18px, 4vw, 44px); background: #f7f3e8; }
.contact-copy h2 { margin-bottom: 15px; }
.contact-copy > p:not(.eyebrow) { max-width: 480px; margin-bottom: 18px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.wechat-id-row { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 13px; }
.wechat-label { color: var(--muted); font-size: 10px; font-weight: 800; }
.wechat-id-row strong { padding: 5px 8px; border-left: 4px solid var(--coral); color: var(--ink); background: var(--yellow); font-family: Consolas, "Courier New", monospace; font-size: 16px; }
.copy-button { display: flex; min-height: 40px; align-items: center; gap: 14px; padding: 0 13px; border: 1px solid var(--ink); border-radius: 5px; color: var(--ink); background: transparent; font-size: 11px; font-weight: 900; cursor: pointer; }
.copy-button:hover { color: #fff; background: var(--ink); }
.copy-button span:last-child { font-size: 16px; }
.qr-card { justify-self: end; width: min(100%, 215px); padding: 10px; background: #fff; box-shadow: 8px 8px 0 var(--coral); }
.qr-card img { display: block; width: 100%; height: auto; }
.qr-card p { margin: 9px 0 0; color: var(--muted); font-size: 10px; font-weight: 800; text-align: center; }
.assurance { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.assurance > div { min-width: 0; padding: 17px clamp(10px, 3vw, 25px); border-right: 1px solid var(--line); }
.assurance > div:last-child { border-right: 0; }
.assurance strong, .assurance span { display: block; }
.assurance strong { margin-bottom: 4px; font-size: 11px; }
.assurance span { color: var(--muted); font-size: 9px; line-height: 1.4; }
.footer { display: flex; justify-content: space-between; padding: 17px clamp(18px, 4vw, 44px) 92px; color: var(--muted); font-size: 10px; }
.footer span:first-child { color: var(--ink); font-weight: 900; }
.sticky-cta { position: fixed; z-index: 8; right: 0; bottom: 0; left: 0; padding: 8px 10px calc(8px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: rgba(251, 252, 248, .94); backdrop-filter: blur(10px); }
.sticky-button { display: flex; width: min(100%, 500px); min-height: 49px; align-items: center; justify-content: space-between; margin: 0 auto; padding: 0 16px; border: 0; border-radius: 6px; color: #fff; background: var(--green); box-shadow: 0 8px 22px rgba(9, 167, 104, .22); font-size: 13px; font-weight: 900; cursor: pointer; }
.sticky-button small { font-size: 10px; font-weight: 700; opacity: .88; }
.toast { position: fixed; z-index: 10; top: 16px; left: 50%; width: calc(100% - 32px); max-width: 440px; padding: 12px 14px; transform: translate(-50%, -14px); border-radius: 5px; color: var(--ink); background: var(--yellow); font-size: 12px; font-weight: 900; text-align: center; opacity: 0; pointer-events: none; transition: opacity 160ms ease, transform 160ms ease; }
.toast.is-visible { transform: translate(-50%, 0); opacity: 1; }
.lightbox { width: min(92vw, 680px); max-height: 92svh; padding: 12px; border: 0; border-radius: 7px; background: var(--paper); box-shadow: 0 20px 70px rgba(32, 56, 58, .25); }
.lightbox::backdrop { background: rgba(32, 56, 58, .62); }
.lightbox img { display: block; width: 100%; max-height: calc(92svh - 70px); object-fit: contain; }
.lightbox p { margin: 9px 0 0; color: var(--ink); font-size: 12px; font-weight: 900; }
.lightbox-close { position: absolute; top: 8px; right: 8px; display: grid; width: 30px; height: 30px; place-items: center; border: 0; border-radius: 50%; color: var(--ink); background: rgba(251, 252, 248, .9); font-size: 22px; line-height: 1; cursor: pointer; }
button:focus-visible, a:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
@media (max-width: 620px) { .hero { grid-template-columns: 1fr; } .hero-note { display: none; } .contact-section { grid-template-columns: 1fr; } .qr-card { justify-self: start; width: min(68vw, 215px); } }
@media (max-width: 380px) { .topbar-right { max-width: 122px; text-align: right; } .status-text { line-height: 1.25; } .catalog-grid { gap: 15px 10px; } .card-meta { display: block; } .card-action { margin-top: 8px; } .assurance { grid-template-columns: 1fr; } .assurance > div { border-right: 0; border-bottom: 1px solid var(--line); } .assurance > div:last-child { border-bottom: 0; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .hero-cta, .card-image img, .toast { transition: none; } }