/* 江苏弈简科技 - 深蓝墨绿科技商务风 */
:root {
  --c-bg: #0a1420;
  --c-bg-2: #0f1c2d;
  --c-surface: rgba(20, 36, 55, 0.7);
  --c-border: rgba(64, 200, 178, 0.18);
  --c-border-strong: rgba(64, 200, 178, 0.42);
  --c-primary: #2fd0a8;
  --c-primary-soft: #38e5be;
  --c-secondary: #4aa2ff;
  --c-text: #e6eef7;
  --c-text-dim: #93a8be;
  --c-text-mute: #6a7d92;
  --c-danger: #ff6b6b;
  --c-gold: #f0c058;
  --c-card: linear-gradient(155deg, rgba(24, 42, 63, 0.9), rgba(15, 28, 45, 0.9));
  --c-card-hover: linear-gradient(155deg, rgba(30, 54, 76, 0.95), rgba(20, 38, 60, 0.95));
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 0 1px var(--c-border-strong), 0 12px 36px rgba(47, 208, 168, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --f-sans: "Inter", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --f-mono: "JetBrains Mono", "Fira Code", monospace;
  --container: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { min-height: 100%; }
body {
  font-family: var(--f-sans);
  background:
    radial-gradient(1200px 800px at 12% -10%, rgba(47, 208, 168, 0.14), transparent 60%),
    radial-gradient(900px 700px at 100% 20%, rgba(74, 162, 255, 0.10), transparent 55%),
    linear-gradient(180deg, var(--c-bg), var(--c-bg-2));
  color: var(--c-text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  background-attachment: fixed;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(64, 200, 178, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 200, 178, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at 50% 30%, black 40%, transparent 85%);
}

a { color: var(--c-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-primary-soft); }
img { max-width: 100%; display: block; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* Navigation */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 20, 32, 0.72);
  border-bottom: 1px solid var(--c-border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: 0.4px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  display: grid; place-items: center; color: #001a12; font-weight: 900; font-family: var(--f-mono);
  box-shadow: 0 4px 18px rgba(47, 208, 168, 0.35);
}
.brand-name { font-size: 17px; color: var(--c-text); }
.brand-sub { display: block; font-size: 11px; color: var(--c-text-mute); font-weight: 400; letter-spacing: 2px; }
.nav-menu { display: flex; gap: 8px; align-items: center; }
.nav-link {
  color: var(--c-text-dim); font-size: 14px; font-weight: 500;
  padding: 8px 14px; border-radius: var(--radius-sm); transition: all .2s;
}
.nav-link:hover, .nav-link.active { color: var(--c-text); background: rgba(64, 200, 178, 0.10); }
.nav-cta {
  padding: 9px 18px; border-radius: 999px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #001a12; font-weight: 700; font-size: 13px;
  box-shadow: 0 6px 20px rgba(47, 208, 168, 0.28);
}
.nav-cta:hover { color: #001a12; transform: translateY(-1px); }
.nav-toggle { display: none; background: transparent; border: 1px solid var(--c-border); color: var(--c-text); padding: 8px 12px; border-radius: 8px; cursor: pointer; }

/* Hero */
.hero { padding: 88px 0 64px; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px; align-items: center; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border: 1px solid var(--c-border-strong); border-radius: 999px;
  font-size: 12px; letter-spacing: 1.5px; color: var(--c-primary-soft); text-transform: uppercase;
  background: rgba(47, 208, 168, 0.06);
}
.hero-tag::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--c-primary); box-shadow: 0 0 10px var(--c-primary); }
.hero-title { font-size: 52px; line-height: 1.15; margin: 22px 0 20px; font-weight: 800; letter-spacing: -0.5px; }
.hero-title .accent {
  background: linear-gradient(120deg, var(--c-primary), var(--c-secondary));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lede { font-size: 17px; color: var(--c-text-dim); margin-bottom: 32px; max-width: 540px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px; border-radius: 12px;
  font-weight: 600; font-size: 15px; cursor: pointer;
  transition: all .2s; border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #001a12;
  box-shadow: 0 8px 24px rgba(47, 208, 168, 0.30);
}
.btn-primary:hover { color: #001a12; transform: translateY(-2px); box-shadow: 0 12px 32px rgba(47, 208, 168, 0.4); }
.btn-ghost {
  background: transparent; color: var(--c-text); border: 1px solid var(--c-border-strong);
}
.btn-ghost:hover { background: rgba(64, 200, 178, 0.10); color: var(--c-primary-soft); }
.btn-sm { padding: 9px 16px; font-size: 13px; border-radius: 8px; }

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-border-strong);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10, 20, 32, 0) 40%, rgba(10, 20, 32, 0.6));
}

.hero-badges { display: flex; gap: 22px; margin-top: 40px; flex-wrap: wrap; }
.hero-badge { display: flex; flex-direction: column; }
.hero-badge b { font-size: 26px; color: var(--c-primary-soft); font-family: var(--f-mono); }
.hero-badge span { font-size: 13px; color: var(--c-text-mute); }

/* Sections */
.section { padding: 80px 0; position: relative; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow {
  font-size: 12px; letter-spacing: 3px; color: var(--c-primary-soft);
  text-transform: uppercase; font-weight: 700; margin-bottom: 14px;
}
.section-title { font-size: 38px; font-weight: 800; letter-spacing: -0.3px; margin-bottom: 14px; }
.section-lede { color: var(--c-text-dim); font-size: 15px; }

/* Cards grid */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  transition: all .25s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-primary-soft), transparent);
  opacity: 0.4;
}
.card:hover {
  border-color: var(--c-border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  background: var(--c-card-hover);
}
.card-icon {
  width: 48px; height: 48px; border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(47, 208, 168, 0.12);
  color: var(--c-primary-soft);
  margin-bottom: 18px;
}
.card-icon svg { width: 26px; height: 26px; }
.card-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.card-text { color: var(--c-text-dim); font-size: 14px; line-height: 1.7; }

/* Product cards */
.product-card { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.product-card .thumb { aspect-ratio: 16/10; overflow: hidden; position: relative; cursor: pointer; }
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .thumb img { transform: scale(1.06); }
.product-card .thumb::after {
  content: '查看详情 →'; position: absolute; bottom: 12px; right: 12px;
  padding: 6px 12px; background: rgba(10, 20, 32, 0.75); border-radius: 20px;
  font-size: 12px; color: var(--c-primary-soft); opacity: 0; transition: opacity .3s;
  border: 1px solid var(--c-border-strong);
}
.product-card:hover .thumb::after { opacity: 1; }
.product-card .body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.product-card .tag {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  font-size: 11px; letter-spacing: 1px; font-weight: 600; margin-bottom: 12px;
  background: rgba(74, 162, 255, 0.12); color: var(--c-secondary);
  align-self: flex-start;
}
.product-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.product-card .desc { color: var(--c-text-dim); font-size: 13.5px; margin-bottom: 16px; flex: 1; }
.product-card .price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 14px; }
.product-card .price b { font-size: 28px; color: var(--c-primary-soft); font-family: var(--f-mono); }
.product-card .price span { font-size: 13px; color: var(--c-text-mute); }
.product-card .actions { display: flex; gap: 10px; }
.product-card .actions .btn { flex: 1; justify-content: center; }

/* Reviews */
.review {
  padding: 20px 22px;
  background: rgba(20, 36, 55, 0.5);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column; gap: 10px;
}
.review-head { display: flex; justify-content: space-between; align-items: center; }
.review-user { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  display: grid; place-items: center; color: #001a12; font-weight: 700;
}
.review-name { font-weight: 600; font-size: 14px; }
.review-time { font-size: 12px; color: var(--c-text-mute); }
.review-stars { color: var(--c-gold); font-size: 13px; letter-spacing: 2px; }
.review-text { color: var(--c-text-dim); font-size: 14px; line-height: 1.7; }

/* Footer */
.footer {
  margin-top: 80px;
  border-top: 1px solid var(--c-border);
  background: rgba(8, 16, 26, 0.6);
  padding: 60px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer h4 { font-size: 14px; margin-bottom: 18px; letter-spacing: 1px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 10px; font-size: 13px; color: var(--c-text-dim); }
.footer a { color: var(--c-text-dim); }
.footer a:hover { color: var(--c-primary-soft); }
.footer-brand-desc { color: var(--c-text-dim); font-size: 13px; margin: 14px 0 20px; line-height: 1.8; }
.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding-top: 24px; text-align: center;
  font-size: 12px; color: var(--c-text-mute);
}
.footer-bottom a { color: var(--c-text-mute); }
.footer-bottom a:hover { color: var(--c-primary-soft); }

/* Float buttons */
.float-btn {
  position: fixed; right: 24px;
  width: 52px; height: 52px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #001a12; border: none;
  box-shadow: 0 10px 30px rgba(47, 208, 168, 0.32);
  transition: all .25s;
  z-index: 100;
}
.float-btn:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 14px 36px rgba(47, 208, 168, 0.45); }
.float-btn svg { width: 22px; height: 22px; }
.float-btn.to-top { bottom: 24px; opacity: 0; pointer-events: none; }
.float-btn.to-top.visible { opacity: 1; pointer-events: auto; }
.float-btn.ai-kf { bottom: 104px; }
.float-btn .tip {
  position: absolute; right: 60px; top: 50%; transform: translateY(-50%);
  padding: 6px 12px; background: rgba(10, 20, 32, 0.9); color: var(--c-text);
  border-radius: 8px; font-size: 12px; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity .2s;
  border: 1px solid var(--c-border-strong);
}
.float-btn:hover .tip { opacity: 1; }

/* Chat modal */
.chat-modal {
  position: fixed; bottom: 100px; right: 24px;
  width: 340px; max-height: 500px;
  background: linear-gradient(180deg, #142438, #0f1c2d);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: none; flex-direction: column;
  z-index: 99;
}
.chat-modal.open { display: flex; }
.chat-head { padding: 16px 18px; border-bottom: 1px solid var(--c-border); display: flex; justify-content: space-between; align-items: center; }
.chat-head b { font-size: 14px; }
.chat-head .status { font-size: 11px; color: var(--c-primary-soft); }
.chat-close { background: transparent; border: none; color: var(--c-text-mute); cursor: pointer; font-size: 20px; }
.chat-body { padding: 18px; overflow-y: auto; flex: 1; max-height: 300px; }
.chat-msg { margin-bottom: 12px; }
.chat-msg .bubble { display: inline-block; padding: 10px 14px; border-radius: 14px; font-size: 13px; max-width: 85%; }
.chat-msg.bot .bubble { background: rgba(64, 200, 178, 0.12); border: 1px solid var(--c-border); }
.chat-msg.me { text-align: right; }
.chat-msg.me .bubble { background: linear-gradient(135deg, var(--c-primary), var(--c-secondary)); color: #001a12; }
.chat-form { padding: 14px; border-top: 1px solid var(--c-border); display: flex; gap: 8px; }
.chat-form input {
  flex: 1; padding: 10px 14px; border-radius: 10px;
  background: rgba(10, 20, 32, 0.6);
  border: 1px solid var(--c-border);
  color: var(--c-text); font-size: 13px; outline: none;
}
.chat-form input:focus { border-color: var(--c-border-strong); }
.chat-form button {
  padding: 10px 16px; border-radius: 10px; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #001a12; font-weight: 700; font-size: 13px;
}

/* Detail page */
.detail-hero { padding: 48px 0 24px; }
.breadcrumb { font-size: 13px; color: var(--c-text-mute); margin-bottom: 24px; }
.breadcrumb a { color: var(--c-text-dim); }
.breadcrumb span { margin: 0 8px; }
.detail-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: start; }
.detail-gallery { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--c-border-strong); box-shadow: var(--shadow-lg); }
.detail-gallery .main-img { aspect-ratio: 16/10; overflow: hidden; }
.detail-gallery .main-img img { width: 100%; height: 100%; object-fit: cover; transition: opacity .3s; }
.detail-thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 10px; background: rgba(10, 20, 32, 0.6); }
.detail-thumbs .t { aspect-ratio: 16/10; border-radius: 8px; overflow: hidden; cursor: pointer; opacity: .65; transition: opacity .2s; border: 1px solid transparent; }
.detail-thumbs .t.active { opacity: 1; border-color: var(--c-primary); }
.detail-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.detail-info .tag { display: inline-block; padding: 5px 12px; background: rgba(74, 162, 255, 0.14); color: var(--c-secondary); border-radius: 999px; font-size: 12px; letter-spacing: 1px; margin-bottom: 14px; }
.detail-info h1 { font-size: 32px; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.3px; }
.detail-info .lede { color: var(--c-text-dim); font-size: 15px; line-height: 1.75; margin-bottom: 26px; }
.detail-price { padding: 20px 22px; border: 1px solid var(--c-border-strong); border-radius: var(--radius-md); background: rgba(47, 208, 168, 0.06); margin-bottom: 24px; }
.detail-price .now { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; }
.detail-price .now b { font-size: 40px; color: var(--c-primary-soft); font-family: var(--f-mono); }
.detail-price .now span { font-size: 14px; color: var(--c-text-dim); }
.detail-price .cycle { font-size: 13px; color: var(--c-text-mute); }
.detail-actions { display: flex; gap: 12px; margin-bottom: 26px; }
.detail-features { list-style: none; padding: 0; }
.detail-features li {
  padding: 12px 0 12px 30px; border-bottom: 1px dashed var(--c-border);
  color: var(--c-text-dim); font-size: 14px; position: relative;
}
.detail-features li::before {
  content: '✓'; position: absolute; left: 0; top: 12px;
  width: 20px; height: 20px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #001a12; display: grid; place-items: center; font-size: 12px; font-weight: 900;
}
.detail-features li:last-child { border-bottom: none; }

.detail-tabs { margin-top: 60px; border-top: 1px solid var(--c-border); padding-top: 40px; }
.tab-head { display: flex; gap: 24px; border-bottom: 1px solid var(--c-border); margin-bottom: 30px; }
.tab-head button {
  background: transparent; border: none; padding: 14px 4px; cursor: pointer;
  color: var(--c-text-dim); font-size: 15px; font-weight: 600;
  border-bottom: 2px solid transparent; transition: all .2s;
}
.tab-head button.active { color: var(--c-primary-soft); border-color: var(--c-primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.spec-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 40px; }
.spec-item { padding: 12px 0; border-bottom: 1px dashed var(--c-border); display: flex; justify-content: space-between; }
.spec-item span:first-child { color: var(--c-text-mute); font-size: 13px; }
.spec-item span:last-child { color: var(--c-text); font-size: 13px; font-weight: 600; }

/* Order page */
.order-wrap { max-width: 960px; margin: 0 auto; padding: 60px 0; }
.order-head { text-align: center; margin-bottom: 48px; }
.order-head h1 { font-size: 34px; font-weight: 800; margin-bottom: 10px; }
.order-head p { color: var(--c-text-dim); font-size: 14px; }
.order-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: start; }
.order-form { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 32px; }
.form-row { margin-bottom: 22px; }
.form-row label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--c-text-dim); letter-spacing: 0.5px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  background: rgba(10, 20, 32, 0.6); border: 1px solid var(--c-border);
  color: var(--c-text); font-size: 14px; font-family: inherit; outline: none;
  transition: border-color .2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--c-border-strong); }
.form-row textarea { resize: vertical; min-height: 100px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pay-methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.pay-method {
  border: 1px solid var(--c-border); border-radius: 10px; padding: 14px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  transition: all .2s; text-align: center;
}
.pay-method:hover, .pay-method.active { border-color: var(--c-primary); background: rgba(47, 208, 168, 0.08); }
.pay-method .p-name { font-size: 13px; font-weight: 600; }
.pay-method .p-badge { width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center; background: rgba(64, 200, 178, 0.12); color: var(--c-primary-soft); }
.pay-method .p-badge svg { width: 18px; height: 18px; }

.order-summary {
  position: sticky; top: 96px;
  background: var(--c-card); border: 1px solid var(--c-border-strong);
  border-radius: var(--radius-md); padding: 28px;
}
.order-summary h3 { font-size: 16px; margin-bottom: 20px; letter-spacing: 0.5px; }
.summary-item { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px dashed var(--c-border); font-size: 14px; }
.summary-item span:first-child { color: var(--c-text-dim); }
.summary-item span:last-child { color: var(--c-text); font-weight: 600; font-family: var(--f-mono); }
.summary-total {
  margin-top: 16px; padding-top: 20px; border-top: 2px solid var(--c-border-strong);
  display: flex; justify-content: space-between; align-items: baseline;
}
.summary-total span { font-size: 14px; color: var(--c-text-dim); }
.summary-total b { font-size: 30px; color: var(--c-primary-soft); font-family: var(--f-mono); }
.order-submit { width: 100%; margin-top: 24px; padding: 15px; font-size: 15px; justify-content: center; }

/* About */
.about-stat { text-align: center; padding: 30px 20px; }
.about-stat b { display: block; font-size: 42px; font-family: var(--f-mono); color: var(--c-primary-soft); margin-bottom: 8px; }
.about-stat span { font-size: 13px; color: var(--c-text-dim); letter-spacing: 1px; }

.timeline { max-width: 780px; margin: 0 auto; }
.tl-item { display: grid; grid-template-columns: 120px 1fr; gap: 32px; padding: 24px 0; border-bottom: 1px solid var(--c-border); }
.tl-item:last-child { border-bottom: none; }
.tl-year { font-family: var(--f-mono); color: var(--c-primary-soft); font-size: 20px; font-weight: 700; }
.tl-content h4 { font-size: 16px; margin-bottom: 8px; }
.tl-content p { color: var(--c-text-dim); font-size: 14px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info { padding: 32px; background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-md); }
.contact-info h3 { font-size: 22px; margin-bottom: 20px; }
.contact-line { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px dashed var(--c-border); }
.contact-line:last-child { border-bottom: none; }
.contact-line .ci-icon { width: 36px; height: 36px; border-radius: 10px; background: rgba(47, 208, 168, 0.12); display: grid; place-items: center; color: var(--c-primary-soft); flex-shrink: 0; }
.contact-line .ci-icon svg { width: 18px; height: 18px; }
.contact-line b { display: block; font-size: 13px; color: var(--c-text-dim); margin-bottom: 4px; letter-spacing: 0.5px; }
.contact-line span { font-size: 15px; color: var(--c-text); font-family: var(--f-mono); }

.responsive-hidden-mobile { display: block; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .detail-grid, .order-grid, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 60px 0 40px; }
  .hero-title { font-size: 36px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 28px; }
  .nav-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(10, 20, 32, 0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px; border-bottom: 1px solid var(--c-border); }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .form-row-2 { grid-template-columns: 1fr; }
  .spec-list { grid-template-columns: 1fr; }
  .tl-item { grid-template-columns: 80px 1fr; gap: 20px; }
  .responsive-hidden-mobile { display: none; }
  .chat-modal { width: calc(100vw - 48px); right: 24px; }
}
@media (max-width: 520px) {
  .grid-3, .grid-4, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 30px; }
  .section-title { font-size: 24px; }
  .detail-info h1 { font-size: 26px; }
  .pay-methods { grid-template-columns: repeat(2, 1fr); }
}