/* ============================================================
   华辉 AI 算力配置 v3.0 · 设计系统（notion 风格：黑/蓝/白 专业风）
   参照 notion.com：居中 hero 大字、数据带、极简卡片、大留白、单 CTA
   移动优先，桌面端 min-width 做加法
   v3.0 新增：信创专区（绿色点缀）、认证墙、固定配置菜单、采购平台
   ============================================================ */
:root {
  --xc: #3fd68f;
  --xc-soft: rgba(63, 214, 143, 0.12);
  --xc-line: rgba(63, 214, 143, 0.4);
  --bg: #0b1220;
  --bg-soft: #0f1a2e;
  --card: #131f36;
  --card-line: #1f3050;
  --ink: #eef2fa;
  --ink-soft: #9fb0cc;
  --ink-dim: #6b7f9e;
  --accent: #4f8fff;
  --accent-strong: #2f6fe0;
  --accent-soft: rgba(79, 143, 255, 0.12);
  --warn-bg: rgba(255, 190, 60, 0.12);
  --warn-line: #c99a2e;
  --ok: #4cd97b;
  --radius: 16px;
  --radius-s: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
img { max-width: 100%; height: auto; display: block; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
a { color: inherit; }

/* ===== 按钮（notion 药丸感） ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 180ms ease-out, background 180ms ease-out, border-color 180ms ease-out;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--card-line); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-block { width: 100%; }

/* ===== Hero（notion 居中） ===== */
.hero {
  min-height: min(82svh, 780px);
  display: flex;
  align-items: center;
  padding: 88px 0 64px;
  background:
    radial-gradient(900px 460px at 78% -12%, rgba(79,143,255,0.16), transparent 60%),
    radial-gradient(700px 380px at 12% 108%, rgba(79,143,255,0.09), transparent 60%),
    var(--bg);
}
.hero-center { text-align: center; }
.hero .kicker {
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(36px, 7.5vw, 64px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: 0.01em;
  margin: 0 auto;
  max-width: 14em;
}
.hero .lede {
  margin: 22px auto 0;
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 34em;
}
.hero-cta { margin-top: 34px; }

/* ===== 数据带（notion 指标条） ===== */
.band { border-top: 1px solid var(--card-line); border-bottom: 1px solid var(--card-line); background: var(--bg-soft); }
.band-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  padding: 28px 20px;
}
@media (min-width: 700px) { .band-grid { grid-template-columns: repeat(4, 1fr); } }
.band-item { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 0; }
.band-num { font-size: 30px; font-weight: 800; color: var(--accent); line-height: 1.2; }
.band-label { font-size: 13px; color: var(--ink-soft); }

/* ===== 锚点导航 ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-line);
}
.nav .wrap { display: flex; gap: 2px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.nav a {
  flex: none;
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 14px;
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 200ms ease-out, border-color 200ms ease-out;
}
.nav a.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ===== 章节 ===== */
.section { padding: 76px 0; scroll-margin-top: 56px; }
.section + .section { border-top: 1px solid var(--card-line); }
.sec-no {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  margin-bottom: 12px;
}
.section h2 {
  font-size: clamp(24px, 4.5vw, 34px);
  line-height: 1.3;
  font-weight: 800;
  max-width: 20em;
  margin-bottom: 14px;
}
.section .sub { color: var(--ink-soft); max-width: 40em; margin-bottom: 36px; }

/* ===== 卡片（notion 极简） ===== */
.cards { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .cards.cards-2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .cards.cards-3 { grid-template-columns: 1fr 1fr 1fr; } }
.card {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform 200ms ease-out, border-color 200ms ease-out;
}
.card:hover { transform: translateY(-2px); border-color: rgba(79,143,255,0.4); }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--ink-soft); }

/* 能力块图标（notion 简洁符号） */
.cap-ico {
  width: 44px; height: 44px;
  border: 1px solid var(--card-line); border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: var(--accent);
  margin-bottom: 16px; background: var(--bg-soft);
}

/* 解决方案块（v3.0：四类客户 2×2） */
.sol-wrap { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 700px) { .sol-wrap { grid-template-columns: 1fr 1fr; } }
.sol-block {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.sol-block .sol-type {
  display: inline-block;
  font-size: 13px; font-weight: 700;
  color: var(--accent);
  border: 1px solid rgba(79,143,255,0.4);
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 16px;
}
.sol-block h3 { font-size: 19px; margin-bottom: 6px; }
.sol-block > p { font-size: 14px; color: var(--ink-soft); margin-bottom: 16px; }
.sol-item {
  border-top: 1px solid var(--card-line);
  padding: 14px 0;
}
.sol-item:last-child { border-bottom: 1px solid var(--card-line); }
.sol-item h4 { font-size: 15px; margin-bottom: 3px; }
.sol-item p { font-size: 13px; color: var(--ink-soft); }
.sol-item .sol-meta { font-size: 12.5px; color: var(--accent); margin-top: 6px; }
.sol-block .p-link { display: inline-flex; align-items: center; min-height: 42px; margin-top: 6px; padding: 0 4px; font-size: 13.5px; color: var(--accent); text-decoration: none; }

/* 产品卡（15 款） */
.p-card .p-model { font-size: 26px; font-weight: 800; letter-spacing: 0.02em; }
.p-card .p-series { color: var(--accent); font-size: 13.5px; font-weight: 600; margin-top: 2px; }
.p-card .p-specs { margin-top: 14px; font-size: 13.5px; color: var(--ink-soft); line-height: 1.9; }
.p-card .p-specs b { color: var(--ink); font-weight: 600; }
.p-card .p-scene { margin-top: 10px; font-size: 12.5px; color: var(--ink-dim); line-height: 1.6; }
.p-card .p-price { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--card-line); font-size: 14px; color: var(--ink); }
.p-card .p-price b { color: var(--accent); font-size: 17px; }
.p-card .p-link { display: inline-flex; align-items: center; min-height: 42px; margin-top: 6px; padding: 0 4px; font-size: 13.5px; color: var(--accent); text-decoration: none; }
.note-line { margin-top: 22px; font-size: 13px; color: var(--ink-dim); }

/* ===== 配置测算 ===== */
.tool-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 1024px) { .tool-grid { grid-template-columns: 1fr 1fr; align-items: start; } }
.form-panel, .result-panel {
  background: var(--card);
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  padding: 26px 24px;
}
fieldset.fg { border: none; margin-bottom: 22px; }
fieldset.fg legend { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 10px; padding: 0; }
fieldset.fg legend .hint { font-size: 12px; color: var(--ink-dim); font-weight: 400; margin-left: 6px; }
.task-rec {
  margin-top: 10px; padding: 10px 14px;
  background: var(--accent-soft); border: 1px solid rgba(79,143,255,0.35);
  border-radius: var(--radius-s); font-size: 13px; color: var(--ink);
  line-height: 1.6;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips-grid-2 .chip { flex: 1 1 calc(50% - 8px); min-width: 0; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip label {
  display: flex;
  align-items: center;
  min-height: 42px;
  padding: 6px 14px;
  border: 1px solid var(--card-line);
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--ink-soft);
  background: var(--bg-soft);
  cursor: pointer;
  user-select: none;
  transition: border-color 160ms ease-out, background 160ms ease-out, color 160ms ease-out;
}
.chip input:checked + label {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.chip input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }

.more { border: 1px solid var(--card-line); border-radius: var(--radius-s); padding: 12px 16px; margin-bottom: 20px; }
.more summary { cursor: pointer; font-size: 14px; color: var(--accent); font-weight: 600; }
.more[open] summary { margin-bottom: 16px; }
.toggle-row { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--ink); cursor: pointer; }
.toggle-row input { position: absolute; opacity: 0; }
.toggle {
  width: 44px; height: 24px; border-radius: 999px;
  background: var(--card-line); position: relative; transition: background 160ms ease-out;
  flex: none;
}
.toggle::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; transition: transform 160ms ease-out;
}
.toggle-row input:checked + .toggle { background: var(--accent); }
.toggle-row input:checked + .toggle::after { transform: translateX(20px); }

/* 结果面板 */
.result-empty { text-align: center; padding: 48px 10px; color: var(--ink-dim); }
.empty-mark {
  width: 56px; height: 56px; margin: 0 auto 16px;
  border: 2px dashed var(--card-line); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 700; color: var(--ink-dim);
}
.result-empty p { font-size: 14px; max-width: 26em; margin: 0 auto; }

.r-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.r-model { font-size: 30px; font-weight: 800; letter-spacing: 0.02em; }
.r-series { color: var(--accent); font-size: 14px; font-weight: 600; }
.tag {
  font-size: 12px; font-weight: 600; color: #fff;
  background: var(--accent); border-radius: 999px; padding: 3px 10px;
}
.r-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 18px; }
.r-cell { background: var(--bg-soft); border-radius: var(--radius-s); padding: 12px 14px; }
.r-cell .k { font-size: 12px; color: var(--ink-dim); margin-bottom: 3px; }
.r-cell .v { font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.45; }
.r-price {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  background: var(--accent-soft); border: 1px solid var(--accent);
  border-radius: var(--radius-s); padding: 14px 18px; margin-bottom: 14px;
}
.r-price-label { font-size: 13px; color: var(--ink-soft); }
.r-price-num { font-size: 26px; font-weight: 800; color: var(--accent); }
.r-budget {
  background: var(--warn-bg); border: 1px solid var(--warn-line);
  border-radius: var(--radius-s); padding: 12px 16px; font-size: 13.5px; color: #f5d48a;
  margin-bottom: 14px;
}
.r-storage {
  background: var(--bg-soft); border-radius: var(--radius-s);
  padding: 12px 16px; font-size: 13.5px; color: var(--ink-soft); margin-bottom: 14px;
}
.r-service { margin-bottom: 16px; }
.r-service .s-title { font-size: 13px; color: var(--ink-dim); margin-bottom: 8px; }
.r-service .s-steps { display: flex; flex-wrap: wrap; gap: 6px; }
.r-service .s-step { font-size: 12px; color: var(--ink-soft); background: var(--bg-soft); border-radius: 999px; padding: 4px 10px; }
.r-lock {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-soft); border: 1px dashed var(--card-line);
  border-radius: var(--radius-s); padding: 12px 16px;
  font-size: 13.5px; color: var(--ink-soft); margin-bottom: 18px;
}
.lock-ico { font-size: 16px; }

.lead-form h3 { font-size: 16px; margin-bottom: 4px; }
.lead-tip { font-size: 12.5px; color: var(--ink-dim); margin-bottom: 12px; }
.lead-row { display: grid; grid-template-columns: 1fr; gap: 10px; margin-bottom: 12px; }
@media (min-width: 700px) { .lead-row { grid-template-columns: 1fr 1fr; } .lead-row #lead-wechat { grid-column: 1 / -1; } }
.lead-row input {
  min-height: 46px; padding: 0 14px;
  border: 1px solid var(--card-line); border-radius: var(--radius-s);
  background: var(--bg); color: var(--ink); font-size: 14.5px; font-family: inherit;
  outline: none; transition: border-color 160ms ease-out;
}
.lead-row input:focus { border-color: var(--accent); }
.privacy { margin-top: 10px; font-size: 12px; color: var(--ink-dim); }
.lead-err { margin-top: 10px; font-size: 13px; color: #ff7b6e; }

.lead-done { text-align: center; padding: 14px 4px; }
.done-ico {
  width: 52px; height: 52px; margin: 0 auto 14px;
  background: var(--accent-soft); color: var(--ok);
  border: 1px solid var(--ok); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 26px; font-weight: 700;
}
.lead-done h3 { font-size: 17px; margin-bottom: 8px; }
.lead-done p { font-size: 14px; color: var(--ink-soft); max-width: 30em; margin: 0 auto 18px; }

/* ===== 二维码 ===== */
.qr-box {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  margin: 0 auto 18px; max-width: 240px;
}
.qr-img {
  width: 160px; height: 160px; border-radius: var(--radius-s);
  border: 1px solid var(--card-line); background: #fff; padding: 6px;
  object-fit: contain;
}
.qr-tip { font-size: 12px; color: var(--ink-dim); }

/* ===== 服务步骤 ===== */
.steps { list-style: none; counter-reset: step; display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 700px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.steps li {
  counter-increment: step;
  background: var(--card); border: 1px solid var(--card-line);
  border-radius: var(--radius-s); padding: 18px;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-size: 26px; font-weight: 800; color: var(--accent); opacity: 0.9;
  display: block; margin-bottom: 8px;
}
.steps li h3 { font-size: 15px; margin-bottom: 4px; }
.steps li p { font-size: 13px; color: var(--ink-soft); }
.steps li .t { font-size: 12px; color: var(--ink-dim); margin-top: 8px; }
.quote-line { margin-top: 26px; font-size: 15px; color: var(--accent); font-weight: 600; }

/* ===== FAQ ===== */
.faq-list { display: grid; grid-template-columns: 1fr; gap: 10px; max-width: 860px; }
.faq-item { background: var(--card); border: 1px solid var(--card-line); border-radius: var(--radius-s); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  font-size: 15px; font-weight: 600; color: var(--ink);
  padding: 16px 20px; font-family: inherit;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq-q::after { content: '+'; font-size: 20px; color: var(--ink-dim); transition: transform 180ms ease-out; flex: none; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 20px 16px; font-size: 14px; color: var(--ink-soft); }
.faq-item.open .faq-a { display: block; }

/* ===== 联系 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 12px; max-width: 640px; margin-bottom: 30px; }
@media (min-width: 700px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-item {
  background: var(--card); border: 1px solid var(--card-line);
  border-radius: var(--radius-s); padding: 16px 20px;
  display: flex; flex-direction: column; gap: 2px;
}
.c-label { font-size: 12px; color: var(--ink-dim); letter-spacing: 0.08em; }
.c-value { font-size: 17px; font-weight: 600; color: var(--ink); }
.contact-cta { margin-top: 8px; }

/* 联系区二维码 */
.contact-qr {
  display: flex; align-items: center; gap: 18px;
  background: var(--card); border: 1px solid var(--card-line);
  border-radius: var(--radius-s); padding: 18px 22px;
  max-width: 640px; margin-bottom: 26px;
}
.contact-qr .qr-img { width: 110px; height: 110px; flex: none; }
.contact-qr-txt { display: flex; flex-direction: column; gap: 2px; }
.contact-qr-txt p { font-size: 13px; color: var(--ink-soft); margin-top: 6px; }

/* ===== 页脚 ===== */
footer { border-top: 1px solid var(--card-line); padding: 40px 0 56px; font-size: 13.5px; color: var(--ink-soft); }
footer .foot-note { margin-top: 8px; font-size: 12px; color: var(--ink-dim); }

/* ===== 滚动进入动画 ===== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 300ms ease-out, transform 300ms ease-out; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .btn, .nav a { transition: none; }
}

/* ===== 必填抖动提示 ===== */
.chip.miss label { border-color: #ff7b6e; animation: shake 240ms ease-out; }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

/* ============================================================
   v3.0 新增：国产算力 · 信创专区
   ============================================================ */

/* 信创 section 微区分底色 */
.xc-section {
  background:
    radial-gradient(800px 400px at 85% 0%, rgba(63,214,143,0.06), transparent 60%),
    var(--bg-soft);
}

/* 沐曦主推卡 */
.metax-cards { margin-bottom: 40px; }
.metax-card { border-color: var(--card-line); }
.metax-card.metax-hot {
  border-color: var(--xc-line);
  background: linear-gradient(180deg, rgba(63,214,143,0.07), transparent 55%), var(--card);
}
.metax-card:hover { border-color: var(--xc-line); }
.metax-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }
.metax-name { font-size: 22px; font-weight: 800; letter-spacing: 0.02em; }
.metax-badge {
  font-size: 12px; font-weight: 700; color: var(--xc);
  border: 1px solid var(--xc-line); background: var(--xc-soft);
  border-radius: 999px; padding: 3px 12px; white-space: nowrap;
}
.metax-tag { font-size: 13px; color: var(--xc); font-weight: 600; margin-bottom: 14px; }
.metax-specs { display: flex; flex-direction: column; gap: 8px; }
.metax-specs .m-row { display: flex; gap: 10px; font-size: 13.5px; line-height: 1.6; }
.metax-specs .m-row .k { flex: none; width: 4.5em; color: var(--ink-dim); }
.metax-specs .m-row .v { color: var(--ink-soft); }
.metax-price {
  margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--card-line);
  font-size: 15px; font-weight: 700; color: var(--xc);
}
.metax-note { margin-top: 6px; font-size: 12.5px; color: var(--ink-dim); }

/* 认证墙 */
.cert-block {
  background: var(--card); border: 1px solid var(--card-line);
  border-radius: var(--radius); padding: 26px 24px; margin-bottom: 20px;
}
.cert-head h3 { font-size: 17px; margin-bottom: 4px; }
.cert-head p { font-size: 12.5px; color: var(--ink-dim); margin-bottom: 18px; }
.cert-grid { display: grid; grid-template-columns: 1fr; gap: 8px; }
@media (min-width: 560px) { .cert-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .cert-grid { grid-template-columns: repeat(3, 1fr); } }
.cert-chip {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  background: var(--bg-soft); border: 1px solid var(--card-line);
  border-radius: var(--radius-s); padding: 10px 14px; font-size: 13.5px;
}
.cert-chip .cert-chip-name { font-weight: 700; }
.cert-chip .cert-chip-vendor { color: var(--ink-soft); font-size: 12.5px; flex: 1; }
.cert-chip .cert-chip-level { color: var(--ink-dim); font-size: 12px; white-space: nowrap; }
.cert-chip.cert-hot {
  border-color: var(--xc-line); background: var(--xc-soft);
}
.cert-chip.cert-hot .cert-chip-name,
.cert-chip.cert-hot .cert-chip-level { color: var(--xc); }
.cert-note { margin-top: 16px; font-size: 13px; color: var(--ink-soft); line-height: 1.7; }

/* 华辉信创整机对应表 */
.xc-map-block h3 { font-size: 17px; margin-bottom: 14px; }
.table-wrap { overflow-x: auto; }
.xc-table { width: 100%; border-collapse: collapse; font-size: 13.5px; background: var(--card); border: 1px solid var(--card-line); border-radius: var(--radius-s); overflow: hidden; }
.xc-table th {
  text-align: left; padding: 12px 14px; font-size: 12.5px; font-weight: 700;
  color: var(--ink-dim); background: var(--bg-soft); border-bottom: 1px solid var(--card-line);
  white-space: nowrap;
}
.xc-table td { padding: 12px 14px; border-bottom: 1px solid var(--card-line); color: var(--ink-soft); vertical-align: top; }
.xc-table tr:last-child td { border-bottom: none; }
.xc-table .xc-model { font-weight: 800; color: var(--xc); white-space: nowrap; }
.xc-table .xc-chip { color: var(--ink); }
.xc-table .xc-price { white-space: nowrap; font-weight: 600; color: var(--ink); }

/* ============================================================
   v3.0 新增：固定配置菜单
   ============================================================ */
.fixed-list { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 700px) { .fixed-list { grid-template-columns: 1fr 1fr; } }
.fixed-card {
  background: var(--card); border: 1px solid var(--card-line);
  border-radius: var(--radius); padding: 22px 22px;
  transition: transform 200ms ease-out, border-color 200ms ease-out;
}
.fixed-card:hover { transform: translateY(-2px); border-color: rgba(79,143,255,0.4); }
.fixed-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.fixed-name { font-size: 17px; font-weight: 700; }
.fixed-model { font-size: 12.5px; color: var(--accent); font-weight: 600; margin-top: 2px; }
.fixed-price { font-size: 20px; font-weight: 800; color: var(--accent); white-space: nowrap; }
.fixed-specs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.f-chip {
  font-size: 12px; color: var(--ink-soft); background: var(--bg-soft);
  border: 1px solid var(--card-line); border-radius: 999px; padding: 3px 10px;
}
.fixed-row { display: flex; gap: 10px; font-size: 13px; line-height: 1.7; padding: 6px 0; border-top: 1px dashed var(--card-line); }
.fixed-row .k { flex: none; width: 5.5em; color: var(--ink-dim); }
.fixed-row .v { color: var(--ink-soft); }

/* ============================================================
   v3.0 新增：采购平台背书
   ============================================================ */
.proc-block {
  margin-top: 30px; padding: 22px 24px;
  background: var(--card); border: 1px solid var(--card-line); border-radius: var(--radius);
}
.proc-block h3 { font-size: 16px; margin-bottom: 4px; }
.proc-sub { font-size: 13px; color: var(--ink-soft); margin-bottom: 14px; }
.proc-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.proc-chip {
  font-size: 12.5px; color: var(--ink-soft); background: var(--bg-soft);
  border: 1px solid var(--card-line); border-radius: 999px; padding: 5px 14px;
}
/* 信创导航项微区分 */
.nav a.xc-nav { color: var(--xc); }
.nav a.xc-nav.active { color: var(--xc); border-bottom-color: var(--xc); }