/* =============================================
   镜缘轩 · 新主站（www.jooj.vip）
   冷调光学感：冰白 × 墨蓝黑 × 镀膜青 × 警示橙
   排版：Noto Sans SC + IBM Plex Mono（验光单式数字）
   ============================================= */

:root {
  --bg: #f7f9fa;          /* 冰白 */
  --bg-soft: #eef2f4;
  --ink: #131c26;         /* 墨蓝黑 */
  --ink-2: #46566b;
  --mute: #8a99a8;
  --line: #d9e2e8;        /* 发丝线 */
  --accent: #178a7c;      /* 镀膜青 */
  --accent-soft: rgba(23, 138, 124, 0.10);
  --hot: #ff5a1f;         /* 警示橙（促签/划线价） */
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --wrap: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--font-mono); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: #fff; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { line-height: 1.3; color: var(--ink); }

/* ════════ 顶栏 ════════ */
.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 249, 250, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.head-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 62px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--ink);
  color: #fff;
  border-radius: 50%;
}
.brand-mark svg { width: 20px; height: 20px; }
.brand-cn { font-size: 1.1rem; font-weight: 700; letter-spacing: 0.12em; }
.brand-en {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  color: var(--mute);
  align-self: end;
  padding-bottom: 4px;
}

.nav { display: flex; gap: 26px; }
.nav a {
  font-size: 0.92rem;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  transition: color 0.25s var(--ease);
}
.nav a:hover { color: var(--accent); }
.nav a i {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.68rem;
  color: var(--mute);
  margin-right: 5px;
}

.head-cta {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.3;
  font-size: 0.78rem;
  color: var(--mute);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 18px;
  transition: border-color 0.25s var(--ease);
}
.head-cta b { font-family: var(--font-mono); font-size: 0.9rem; color: var(--ink); font-weight: 500; }
.head-cta:hover { border-color: var(--accent); }

/* ════════ HERO ════════ */
.hero { overflow: hidden; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: center;
  min-height: calc(100vh - 62px);
  padding-top: 40px;
  padding-bottom: 60px;
}

.hero-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(2rem, 4.6vw, 3.3rem);
  font-weight: 900;
  letter-spacing: 0.02em;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  margin-top: 22px;
  max-width: 34em;
  color: var(--ink-2);
  font-size: 1.02rem;
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 32px;
  border-radius: 999px;
  font-size: 0.98rem;
  letter-spacing: 0.04em;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}
.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(19, 28, 38, 0.22); }
.btn-line { border: 1px solid var(--ink); color: var(--ink); }
.btn-line:hover { background: var(--ink); color: #fff; }

.hero-facts {
  margin-top: 44px;
  display: flex;
  gap: 0;
  border-top: 1px solid var(--line);
}
.hero-facts > div {
  flex: 1;
  padding: 14px 18px 0 0;
}
.hero-facts > div + div { padding-left: 18px; border-left: 1px solid var(--line); }
.hero-facts dt { font-size: 0.72rem; color: var(--mute); letter-spacing: 0.14em; }
.hero-facts dd { font-size: 1.05rem; color: var(--ink); font-weight: 500; }

/* 光学示意图 */
.hero-optic svg { width: 100%; height: auto; }
.hero-optic figcaption {
  margin-top: 10px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--mute);
}

/* 光路动效：入射光推进 */
.rays line {
  stroke-dasharray: 280;
  stroke-dashoffset: 280;
  animation: ray-in 2.6s var(--ease) forwards;
}
.rays .r2 { animation-delay: 0.15s; }
.rays .r3 { animation-delay: 0.3s; }
@keyframes ray-in { to { stroke-dashoffset: 0; } }

/* 折射虚线流动 */
.f1, .f2, .f3 { stroke-dashoffset: 0; animation: flow 1.6s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -22; } }

.focus.pulse { animation: pulse 2.4s ease-out infinite; transform-origin: 488px 250px; }
@keyframes pulse {
  0% { transform: scale(0.5); opacity: 0.9; }
  70%, 100% { transform: scale(1.6); opacity: 0; }
}

/* ════════ 品牌带（跑马灯） ════════ */
.ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
  overflow: hidden;
}
.ticker-track {
  display: flex;
  gap: 3.5em;
  white-space: nowrap;
  padding: 12px 0;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--ink-2);
  width: max-content;
  animation: ticker 30s linear infinite;
}
@keyframes ticker { to { transform: translateX(-50%); } }

/* ════════ 通用区块 ════════ */
.sec { padding: 88px 0; }

.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 44px;
}
.sec-head h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  font-weight: 700;
}
.sec-head h2 em {
  display: block;
  font-style: normal;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--ink-2);
  margin-top: 8px;
}
.sec-more {
  flex: none;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.25s var(--ease);
}
.sec-more:hover { border-color: var(--accent); }

.sec-tint {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* ════════ 分类卡 ════════ */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.cat-card {
  position: relative;
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 24px 22px;
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.cat-card::after {
  content: "";
  position: absolute;
  left: 24px; right: 24px; bottom: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(19, 28, 38, 0.10);
  border-color: transparent;
}
.cat-card:hover::after { transform: scaleX(1); }

.cat-no { font-size: 0.68rem; letter-spacing: 0.2em; color: var(--mute); }
.cat-card h3 { font-size: 1.3rem; margin: 10px 0 8px; }
.cat-card p { font-size: 0.86rem; color: var(--ink-2); line-height: 1.9; }
.cat-go {
  position: absolute;
  right: 20px; top: 22px;
  font-family: var(--font-mono);
  color: var(--mute);
  transition: transform 0.35s var(--ease), color 0.35s var(--ease);
}
.cat-card:hover .cat-go { transform: translateX(4px); color: var(--accent); }

/* ════════ 精选货架 ════════ */
.shelf-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 52px 0 18px;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--mute);
}
.shelf-head a { color: var(--accent); }
.shelf-head a:hover { border-bottom: 1px solid var(--accent); }

.shelf {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.shelf a {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  height: 100%;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.shelf a:hover { transform: translateY(-5px); box-shadow: 0 16px 36px rgba(19, 28, 38, 0.10); }
.shelf img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--bg-soft);
}
.shelf b {
  padding: 12px 14px 4px;
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.shelf .mono {
  padding: 0 14px 14px;
  font-size: 0.92rem;
  color: var(--ink);
}
.shelf s { color: var(--mute); margin-right: 6px; }

/* ════════ 信任背书（账目式） ════════ */
.ledger { list-style: none; }
.ledger li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: start;
  padding: 26px 6px;
  border-top: 1px solid var(--line);
}
.ledger li:last-child { border-bottom: 1px solid var(--line); }
.ledger-no {
  font-size: 1.6rem;
  color: var(--mute);
  line-height: 1.2;
}
.ledger h3 {
  display: inline-block;
  font-size: 1.12rem;
  margin-bottom: 6px;
}
.ledger h3::after {
  content: "✓";
  font-size: 0.8rem;
  color: var(--accent);
  margin-left: 10px;
  vertical-align: 2px;
}
.ledger p { color: var(--ink-2); font-size: 0.95rem; max-width: 40em; }
.ledger li:hover .ledger-no { color: var(--accent); }

/* ════════ 验光五步 ════════ */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  counter-reset: step;
}
.steps li {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 20px 18px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.steps li:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(19, 28, 38, 0.09); }
.step-no {
  display: inline-block;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 12px;
}
.steps h3 { font-size: 1.05rem; margin-bottom: 6px; }
.steps p { font-size: 0.85rem; color: var(--ink-2); line-height: 1.85; }
/* 步骤连线箭头 */
.steps li + li::before {
  content: "→";
  position: absolute;
  left: -16px; top: 26px;
  font-family: var(--font-mono);
  color: var(--mute);
  font-size: 0.85rem;
}

/* ════════ 品牌故事 ════════ */
.story-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: center;
}
.story-quote {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.55;
}
.story-quote em { font-style: normal; color: var(--accent); }
.story-body p { color: var(--ink-2); margin-bottom: 16px; }
.story-sig {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--mute) !important;
  margin-top: 24px;
}

/* ════════ 到店 ════════ */
.visit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto;
  gap: 56px;
  align-items: center;
}
.visit-info h2 { font-size: clamp(1.5rem, 2.8vw, 2rem); }
.visit-note { color: var(--ink-2); margin: 10px 0 28px; }

.visit-rows { display: grid; gap: 0; border-top: 1px solid var(--line); margin-bottom: 30px; }
.visit-rows > div {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 16px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.visit-rows dt {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--mute);
}
.visit-rows dd { font-size: 1rem; }
.visit-rows dd a { color: var(--accent); }
.visit-rows dd a:hover { border-bottom: 1px solid var(--accent); }

.qr-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 22px 16px;
  text-align: center;
  box-shadow: 0 18px 44px rgba(19, 28, 38, 0.10);
}
.qr-card img { width: 200px; height: 200px; border-radius: 10px; margin: 0 auto; }
.qr-card figcaption {
  margin-top: 12px;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--mute);
}

/* ════════ 页脚 ════════ */
.site-foot {
  border-top: 1px solid var(--line);
  padding: 30px 0;
}
.foot-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--mute);
}
.foot-nav { display: flex; gap: 22px; }
.foot-nav a { color: var(--ink-2); transition: color 0.25s var(--ease); }
.foot-nav a:hover { color: var(--accent); }

/* ════════ 入场动效 ════════ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ════════ 响应式 ════════ */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; min-height: 0; padding-top: 56px; }
  .hero-optic { max-width: 480px; margin: 0 auto; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .shelf { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps li + li::before { content: none; }
  .story-grid, .visit-grid { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 680px) {
  .nav { display: none; }
  .head-cta { display: none; }
  .hero-facts { flex-direction: column; }
  .hero-facts > div + div { padding-left: 0; border-left: none; border-top: 1px solid var(--line); padding-top: 12px; margin-top: 12px; }
  .cat-grid { grid-template-columns: 1fr; }
  .shelf { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .steps { grid-template-columns: 1fr; }
  .ledger li { grid-template-columns: 56px 1fr; gap: 16px; }
  .ledger-no { font-size: 1.2rem; }
  .sec { padding: 64px 0; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .visit-rows > div { grid-template-columns: 1fr; gap: 2px; }
}

/* ════════ 动效减免 ════════ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rays line, .f1, .f2, .f3, .focus.pulse, .ticker-track { animation: none; stroke-dashoffset: 0; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .cat-card, .shelf a, .steps li { transition: none; }
}