/* ============================================================
   FurMark 官方网站 - 全局样式
   www.furmark.site
   设计基调：炭黑工业 / 炽焰橙 / 温度监控感 / 克制留白
   ============================================================ */

:root {
  --bg: #0a0b0d;
  --bg-soft: #0e1013;
  --card: #121417;
  --card-2: #15181c;
  --line: #1f2329;
  --line-soft: #181b20;
  --text: #d8d4ca;
  --text-dim: #8a8f98;
  --text-faint: #5c6068;
  --accent: #e2602c;
  --accent-soft: rgba(226, 96, 44, .12);
  --amber: #d9a03f;
  --green: #7fae86;
  --mono: "Cascadia Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --radius: 8px;
  --maxw: 1160px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 背景质感：细腻网格 + 顶部渐变光晕 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(rgba(255, 255, 255, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .022) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  top: -320px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 620px;
  z-index: -1;
  background: radial-gradient(closest-side, rgba(226, 96, 44, .07), transparent 72%);
  pointer-events: none;
}

::selection { background: rgba(226, 96, 44, .32); color: #fff; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(10, 11, 13, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: .02em;
}

.brand img { width: 30px; height: 30px; border-radius: 6px; }

.brand .brand-name { font-size: 17px; }
.brand .brand-name em { font-style: normal; color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 13px;
  font-size: 13.5px;
  color: var(--text-dim);
  border-radius: 6px;
  transition: color .22s var(--ease), background .22s var(--ease);
  position: relative;
}

.nav-links a:hover { color: var(--text); background: rgba(255, 255, 255, .04); }
.nav-links a.active { color: var(--text); }

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 3px;
  height: 1.5px;
  background: var(--accent);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border-radius: 6px;
  box-shadow: 0 4px 14px rgba(226, 96, 44, .28);
  transition: background .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}

.nav-cta:hover { background: #ef6d37; box-shadow: 0 6px 20px rgba(226, 96, 44, .36); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--text);
  width: 38px; height: 38px;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}

/* ---------- 通用章节 ---------- */
.section { padding: 84px 0; }
.section-tight { padding: 56px 0; }

.sec-head { margin-bottom: 42px; }

.sec-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.sec-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--accent);
}

.sec-title {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.2;
  color: #f2eee6;
}

.sec-sub {
  margin-top: 12px;
  max-width: 640px;
  color: var(--text-dim);
  font-size: 14.5px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 8px;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .24s var(--ease);
  line-height: 1.2;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 22px rgba(226, 96, 44, .30);
}

.btn-primary:hover { background: #ef6d37; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(226, 96, 44, .38); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.btn-ghost:hover { border-color: var(--text-dim); background: rgba(255, 255, 255, .03); transform: translateY(-2px); }

.btn-lg { padding: 15px 32px; font-size: 15.5px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 78px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 22px;
}

.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(127, 174, 134, .18);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .45; }
}

.hero h1 {
  font-size: clamp(38px, 5.2vw, 58px);
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: 1.08;
  color: #f6f2ea;
}

.hero h1 .hl {
  color: var(--accent);
  position: relative;
}

.hero h1 .hl::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 5px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: .28;
}

.hero-desc {
  margin-top: 20px;
  color: var(--text-dim);
  font-size: 16px;
  max-width: 520px;
}

.hero-meta {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-faint);
}

.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta i { font-style: normal; color: var(--text-dim); }

.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  max-width: 520px;
}

.hstat {
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, .02);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.hstat .num {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  color: #f2eee6;
  font-variant-numeric: tabular-nums;
}

.hstat .num i { font-style: normal; color: var(--accent); font-size: 15px; margin-left: 2px; }
.hstat .lab { margin-top: 2px; font-size: 12px; color: var(--text-faint); }

/* Hero 右侧可视化 */
.hero-visual {
  position: relative;
}

.hero-visual .frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
}

.hero-visual .frame img { width: 100%; }

.frame-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #0d0f12;
  border-bottom: 1px solid var(--line-soft);
}

.frame-bar b { width: 9px; height: 9px; border-radius: 50%; display: block; }
.frame-bar b:nth-child(1) { background: #d6543f; }
.frame-bar b:nth-child(2) { background: #d9a03f; }
.frame-bar b:nth-child(3) { background: #6fae7e; }
.frame-bar span { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--text-faint); letter-spacing: .06em; }

.overlay-chip {
  position: absolute;
  left: 14px; bottom: 14px;
  display: flex;
  gap: 8px;
  padding: 9px 14px;
  background: rgba(10, 11, 13, .82);
  border: 1px solid var(--line);
  border-radius: 8px;
  backdrop-filter: blur(8px);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}

.overlay-chip b { color: #f2eee6; font-weight: 700; font-variant-numeric: tabular-nums; }
.overlay-chip .up { color: var(--green); }

.float-note {
  position: absolute;
  right: -14px; top: -16px;
  padding: 10px 16px;
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .4);
  transform: rotate(2deg);
}

.float-note b { color: var(--accent); }

/* ---------- 功能特性卡片 ---------- */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feat-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 28px 26px 26px;
  transition: border-color .28s var(--ease), transform .28s var(--ease), background .28s var(--ease);
  overflow: hidden;
}

.feat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent 60%);
  opacity: 0;
  transition: opacity .28s var(--ease);
}

.feat-card:hover { border-color: var(--line); transform: translateY(-4px); background: var(--card-2); }
.feat-card:hover::before { opacity: 1; }

.feat-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--accent);
  font-size: 20px;
  margin-bottom: 18px;
}

.feat-card h3 { font-size: 16.5px; color: #efeae1; margin-bottom: 8px; letter-spacing: .01em; }
.feat-card p { font-size: 13.5px; color: var(--text-dim); line-height: 1.7; }

.feat-num {
  position: absolute;
  right: 18px; top: 14px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: .08em;
}

/* ---------- 截图展示 ---------- */
.shot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.shot-item {
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card);
  transition: border-color .28s var(--ease), transform .28s var(--ease);
}

.shot-item:hover { border-color: var(--line); transform: translateY(-3px); }

.shot-img { position: relative; overflow: hidden; aspect-ratio: 16 / 10; background: #0d0f12; }
.shot-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.shot-item:hover .shot-img img { transform: scale(1.035); }

.shot-cap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--text-dim);
}

.shot-cap b { color: #e8e3da; font-weight: 600; font-size: 13px; }
.shot-cap .tag { font-family: var(--mono); font-size: 11px; color: var(--text-faint); }

/* ---------- 亮点 / 特性长条 ---------- */
.hl-list { display: grid; gap: 0; }

.hl-row {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 22px 8px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .25s var(--ease);
}

.hl-row:first-child { border-top: 1px solid var(--line-soft); }
.hl-row:hover { background: rgba(255, 255, 255, .018); }

.hl-idx { font-family: var(--mono); font-size: 12px; color: var(--text-faint); letter-spacing: .1em; }
.hl-main h3 { font-size: 16px; color: #efeae1; font-weight: 600; }
.hl-main p { font-size: 13px; color: var(--text-dim); margin-top: 4px; }
.hl-tag { font-family: var(--mono); font-size: 11px; color: var(--amber); border: 1px solid rgba(217, 160, 63, .25); background: rgba(217, 160, 63, .06); padding: 4px 10px; border-radius: 999px; white-space: nowrap; }

/* ---------- 版本信息 ---------- */
.version-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.vbox {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 28px;
}

.vbox .vtag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--green);
  margin-bottom: 14px;
}

.vbox .vtag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }

.vbox h3 { font-size: 22px; color: #f2eee6; font-weight: 700; }
.vbox .vdate { font-family: var(--mono); font-size: 12px; color: var(--text-faint); margin-top: 4px; }
.vbox p { margin-top: 14px; font-size: 13.5px; color: var(--text-dim); }

.vbox .vdown { margin-top: 20px; }

.vlist {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  overflow: hidden;
}

.vlist-row {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  gap: 18px;
  padding: 15px 22px;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
  transition: background .25s var(--ease);
}

.vlist-row:last-child { border-bottom: none; }
.vlist-row:hover { background: rgba(255, 255, 255, .018); }

.vlist-row .ver { font-family: var(--mono); font-size: 13.5px; color: #f2eee6; font-weight: 600; }
.vlist-row .ver small { display: block; font-size: 11px; color: var(--text-faint); font-weight: 400; margin-top: 2px; }
.vlist-row .desc { font-size: 13px; color: var(--text-dim); }
.vlist-row .link { font-size: 12px; color: var(--accent); white-space: nowrap; font-family: var(--mono); }

/* ---------- 下载引导 ---------- */
.dl-cta {
  position: relative;
  background:
    radial-gradient(900px 320px at 20% 0%, rgba(226, 96, 44, .09), transparent 60%),
    var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 54px 48px;
  text-align: center;
  overflow: hidden;
}

.dl-cta h2 { font-size: clamp(24px, 3vw, 32px); color: #f6f2ea; font-weight: 700; }
.dl-cta p { margin: 14px auto 30px; max-width: 560px; color: var(--text-dim); font-size: 14px; }

.dl-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.dl-note { margin-top: 26px; font-family: var(--mono); font-size: 12px; color: var(--text-faint); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; }

.faq-item {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  margin-bottom: 12px;
  background: var(--card);
  overflow: hidden;
  transition: border-color .25s var(--ease);
}

.faq-item[open] { border-color: var(--line); }

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 14.5px;
  font-weight: 600;
  color: #e8e3da;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 19px;
  color: var(--text-faint);
  transition: transform .28s var(--ease), color .28s var(--ease);
}

.faq-item[open] summary::after { transform: rotate(45deg); color: var(--accent); }

.faq-item .faq-body { padding: 0 22px 20px; font-size: 13.5px; color: var(--text-dim); line-height: 1.8; }
.faq-item .faq-body a { color: var(--accent); border-bottom: 1px dashed rgba(226, 96, 44, .4); }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 56px 0 34px;
  margin-top: 40px;
  background: #090a0c;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 38px;
  border-bottom: 1px solid var(--line-soft);
}

.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { font-size: 13px; color: var(--text-faint); max-width: 300px; }

.footer-col h4 {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--text-dim);
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-col a {
  display: block;
  font-size: 13.5px;
  color: var(--text-faint);
  padding: 5px 0;
  transition: color .2s var(--ease);
}

.footer-col a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-faint);
}

.footer-bottom .warn { color: var(--text-faint); }

/* ---------- 页面头 ---------- */
.page-head {
  padding: 72px 0 20px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 48px;
}

.page-head .crumbs {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 14px;
  letter-spacing: .04em;
}

.page-head .crumbs a:hover { color: var(--accent); }

.page-head h1 { font-size: clamp(30px, 4vw, 42px); font-weight: 800; letter-spacing: -.02em; color: #f6f2ea; line-height: 1.15; }
.page-head .lead { margin-top: 14px; color: var(--text-dim); font-size: 15px; max-width: 660px; }

/* ---------- 下载页 ---------- */
.dl-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.dl-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 34px 30px;
  overflow: hidden;
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}

.dl-card:hover { transform: translateY(-3px); border-color: #2c313a; }

.dl-card .provider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.dl-card .provider .logo {
  width: 42px; height: 42px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 19px;
  color: #fff;
}

.dl-card .provider h3 { font-size: 17px; color: #f2eee6; }
.dl-card .provider small { display: block; font-family: var(--mono); font-size: 11px; color: var(--text-faint); }

.dl-card .desc { font-size: 13px; color: var(--text-dim); margin-bottom: 22px; line-height: 1.75; }

.dl-card .btn { width: 100%; }

.dl-tip {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12px;
  color: var(--text-faint);
  line-height: 1.65;
}

.dl-tip i { font-style: normal; color: var(--amber); }

.dl-steps {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.dl-step {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 22px 18px;
  background: var(--card);
}

.dl-step .n {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: .1em;
}

.dl-step h4 { font-size: 14px; color: #e8e3da; margin: 8px 0 6px; }
.dl-step p { font-size: 12.5px; color: var(--text-faint); line-height: 1.65; }

/* ---------- 截图页 ---------- */
.gallery-grid {
  columns: 2;
  column-gap: 18px;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 18px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card);
  transition: border-color .28s var(--ease), transform .28s var(--ease);
}

.gallery-item:hover { border-color: var(--line); transform: translateY(-3px); }

.gallery-item img { width: 100%; }
.gallery-item .cap { padding: 12px 16px; font-size: 12.5px; color: var(--text-dim); }
.gallery-item .cap b { color: #e8e3da; display: block; font-size: 13px; margin-bottom: 2px; }

/* ---------- changelog ---------- */
.cl-entry {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 28px;
  padding: 30px 4px;
  border-bottom: 1px solid var(--line-soft);
}

.cl-entry:first-child { padding-top: 8px; }

.cl-ver .ver { font-family: var(--mono); font-size: 17px; font-weight: 700; color: #f2eee6; }
.cl-ver .date { font-family: var(--mono); font-size: 12px; color: var(--text-faint); margin-top: 5px; }
.cl-ver .badge {
  display: inline-block;
  margin-top: 10px;
  font-size: 11px;
  font-family: var(--mono);
  color: var(--accent);
  border: 1px solid rgba(226, 96, 44, .3);
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
}

.cl-body ul { list-style: none; }
.cl-body li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 6px;
}

.cl-body li::before {
  content: "";
  position: absolute;
  left: 2px; top: 11px;
  width: 5px; height: 5px;
  background: var(--line);
  border-radius: 50%;
}

.cl-body li.hl::before { background: var(--accent); }
.cl-body li.hl { color: #c9c4ba; }

/* ---------- 关于页 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }

.info-line {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13.5px;
}

.info-line dt { color: var(--text-faint); font-family: var(--mono); font-size: 12.5px; }
.info-line dd { color: var(--text-dim); }
.info-line dd b { color: #e8e3da; font-weight: 600; }

/* ---------- Modal ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(5, 6, 8, .72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-mask.open { display: flex; animation: fadeIn .25s var(--ease); }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-box {
  position: relative;
  width: 100%;
  max-width: 430px;
  background: #121417;
  border: 1px solid #262b33;
  border-radius: 16px;
  padding: 34px 30px 30px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
  text-align: center;
  animation: popIn .3s var(--ease);
}

@keyframes popIn {
  from { opacity: 0; transform: translateY(14px) scale(.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  right: 14px; top: 12px;
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  width: 34px; height: 34px;
  border-radius: 8px;
  transition: color .2s, background .2s;
}

.modal-close:hover { color: #fff; background: rgba(255, 255, 255, .06); }

.modal-box .m-icon { font-size: 34px; margin-bottom: 10px; }
.modal-box h3 { font-size: 19px; color: #f6f2ea; font-weight: 700; margin-bottom: 6px; }
.modal-box .m-sub { font-family: var(--mono); font-size: 12px; color: var(--text-faint); margin-bottom: 18px; letter-spacing: .05em; }

.modal-box .m-desc { font-size: 13px; color: var(--text-dim); line-height: 1.8; text-align: left; }

.m-desc b { color: #e8e3da; }
.m-desc .warn { color: var(--amber); }

.qr-wrap {
  margin: 22px auto 14px;
  width: 178px;
  height: 178px;
  padding: 10px;
  background: #fff;
  border-radius: 12px;
  animation: qrBreathe 2.6s ease-in-out infinite;
}

.qr-wrap img { width: 100%; height: 100%; object-fit: contain; }

@keyframes qrBreathe {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 2px rgba(226, 96, 44, .10), 0 0 0 4px rgba(226, 96, 44, .04);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 0 0 3px rgba(226, 96, 44, .22), 0 0 0 7px rgba(226, 96, 44, .05), 0 0 24px rgba(226, 96, 44, .16);
  }
}

.qr-label {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
  letter-spacing: .1em;
  margin-bottom: 4px;
}

.qr-hint { font-size: 11.5px; color: var(--text-faint); }

.modal-foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 11.5px;
  color: var(--text-faint);
  line-height: 1.7;
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 640px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .version-panel { grid-template-columns: 1fr; }
  .dl-panel { grid-template-columns: 1fr; }
  .dl-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .cl-entry { grid-template-columns: 150px 1fr; gap: 16px; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 720px) {
  .section { padding: 60px 0; }
  .nav-links {
    position: absolute;
    top: 66px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(10, 11, 13, .97);
    border-bottom: 1px solid var(--line);
    padding: 12px 20px 18px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; font-size: 14.5px; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .nav-cta { display: none; }
  .feat-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: 1fr; }
  .gallery-grid { columns: 1; }
  .hl-row { grid-template-columns: 1fr; gap: 8px; }
  .vlist-row { grid-template-columns: 1fr; gap: 6px; }
  .dl-steps { grid-template-columns: 1fr; }
  .dl-cta { padding: 40px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .hero { padding: 64px 0 50px; }
  .hero-actions .btn { width: 100%; }
  .cl-entry { grid-template-columns: 1fr; gap: 8px; }
  .hero-stats { gap: 8px; }
  .hstat { padding: 10px 12px; }
  .hstat .num { font-size: 17px; }
}