/* ===========================================================================
   雾漫科技技术组 · 全站样式表（简洁版）
   ---------------------------------------------------------------------------
   设计原则
     1. 内容优先：默认全部可见，动画只在 <html class="js"> 时启用
     2. 少即是多：扁平面板、克制阴影、无常驻炫技动画
     3. 动效只保留：入场、悬停、点击、欢迎页、灯箱
   =========================================================================== */

:root {
  --bg: #070b14;
  --bg-2: #0b1220;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-2: rgba(255, 255, 255, 0.07);
  --line: rgba(126, 169, 235, 0.14);
  --line-strong: rgba(126, 169, 235, 0.32);
  --text: #e9eefb;
  --text-soft: #b6c3da;
  --muted: #8394b0;
  --accent: #4ea8ff;
  --accent-2: #7dd3fc;
  --ok: #58e0a8;
  --danger: #ff8080;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  --wrap: 1080px;
  --font: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --ease: cubic-bezier(0.22, 0.8, 0.25, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html.locked, html.locked body { overflow: hidden; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 背景：一层雾光 + 一层网格，刻意压低存在感 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 620px at 18% -8%, rgba(78, 168, 255, 0.16), transparent 62%),
    radial-gradient(760px 560px at 92% 6%, rgba(125, 211, 252, 0.10), transparent 64%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 55%, var(--bg) 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(126, 169, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 169, 235, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 76%);
  -webkit-mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 76%);
}

.fog {
  position: fixed;
  z-index: -1;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.32;
  transition: translate 0.9s var(--ease);
}
.fog.f1 { width: 44vw; height: 44vw; left: -12vw; top: 6vh; background: radial-gradient(circle, rgba(78, 168, 255, 0.28), transparent 68%); animation: drift1 40s ease-in-out infinite; }
.fog.f2 { width: 42vw; height: 36vw; right: -12vw; bottom: -8vh; background: radial-gradient(circle, rgba(125, 211, 252, 0.22), transparent 70%); animation: drift1 52s ease-in-out infinite reverse; }
@keyframes drift1 {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(6vw, 4vh, 0) scale(1.08); }
}

img { max-width: 100%; display: block; }
a { color: var(--accent-2); text-decoration: none; transition: color 0.18s; }
a:hover { color: #fff; }
h1, h2, h3, h4 { line-height: 1.35; margin: 0 0 0.6em; font-weight: 700; letter-spacing: 0.01em; }
h2 { font-size: clamp(22px, 3.4vw, 29px); }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }

/* ---------------- 顶栏 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(7, 11, 20, 0.78);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 16px; min-height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 16px; white-space: nowrap; }
.brand:hover { color: #fff; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; font-size: 16px; color: #04101f;
  background: linear-gradient(140deg, var(--accent-2), var(--accent));
}
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 2px; }
.site-nav a { position: relative; color: var(--text-soft); font-size: 14.5px; padding: 8px 12px; border-radius: 8px; transition: color 0.18s, background 0.18s; }
.site-nav a:hover { color: #fff; background: var(--panel); }
.site-nav a.active { color: #fff; background: var(--panel-2); }
.nav-toggle {
  display: none; margin-left: auto; width: 40px; height: 36px; border-radius: 9px;
  border: 1px solid var(--line); background: var(--panel); color: var(--text); cursor: pointer; font-size: 16px;
}

/* ---------------- 按钮 ---------------- */
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 10px; font-size: 15px; font-weight: 600;
  border: 1px solid var(--line-strong); background: var(--panel); color: var(--text);
  cursor: pointer; font-family: inherit;
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s, border-color 0.18s;
}
.btn:hover { transform: translateY(-1px); color: #fff; border-color: rgba(126, 169, 235, 0.55); background: var(--panel-2); }
.btn:active { transform: translateY(0) scale(0.99); }
.btn-primary { border-color: transparent; background: var(--accent); color: #04101f; font-weight: 700; }
.btn-primary:hover { background: var(--accent-2); color: #04101f; box-shadow: 0 8px 24px rgba(78, 168, 255, 0.28); }

.ripple { position: absolute; border-radius: 50%; background: rgba(255, 255, 255, 0.35); transform: scale(0); animation: rippleOut 0.6s ease-out forwards; pointer-events: none; }
@keyframes rippleOut { to { transform: scale(1); opacity: 0; } }

/* ---------------- 欢迎页 ---------------- */
.welcome {
  display: none; position: fixed; inset: 0; z-index: 300;
  align-items: center; justify-content: center; text-align: center; padding: 30px;
  background:
    radial-gradient(700px 480px at 50% 34%, rgba(78, 168, 255, 0.16), transparent 64%),
    linear-gradient(180deg, #05080f, #0b1220 60%, #05080f);
  transition: opacity 0.45s ease, transform 0.6s var(--ease);
}
html.welcome-on .welcome { display: flex; }
.welcome.out { opacity: 0; transform: scale(1.04); pointer-events: none; }
.welcome-inner { position: relative; z-index: 2; max-width: 560px; }
.welcome-mark {
  width: 88px; height: 88px; margin: 0 auto 24px; border-radius: 24px;
  object-fit: cover;
  object-position: center 26%;   /* 竖版人像取景上移，方框里框住脸 */
  border: 2px solid rgba(78, 168, 255, 0.5);
  background: rgba(0, 0, 0, 0.3);
  box-shadow: 0 12px 34px rgba(78, 168, 255, 0.22);
}
.welcome-eyebrow { font-size: 12px; letter-spacing: 0.4em; color: var(--accent-2); margin-bottom: 12px; }
.welcome-title { font-size: clamp(32px, 6.5vw, 52px); letter-spacing: 0.06em; margin: 0 0 12px; color: #fff; }
.welcome-sub { color: var(--text-soft); font-size: clamp(14.5px, 2.2vw, 16.5px); margin: 0 0 30px; }
.welcome-btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 36px; border-radius: 10px; border: none; font-family: inherit;
  font-size: 16.5px; font-weight: 700; letter-spacing: 0.06em; color: #04101f; cursor: pointer;
  background: var(--accent);
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.welcome-btn:hover { transform: translateY(-2px); background: var(--accent-2); box-shadow: 0 14px 36px rgba(78, 168, 255, 0.36); }
.welcome-btn:active { transform: scale(0.99); }
.welcome-btn .wb-arrow { transition: transform 0.25s; }
.welcome-btn:hover .wb-arrow { transform: translateX(4px); }
.welcome-hint { margin: 20px 0 0; font-size: 13px; color: var(--muted); }

.js .welcome .anim-w { opacity: 0; transform: translateY(18px); }
.js .welcome.in .anim-w { animation: upIn 0.7s var(--ease) forwards; }
.js .welcome.in .w1 { animation-delay: 0.06s; }
.js .welcome.in .w2 { animation-delay: 0.14s; }
.js .welcome.in .w3 { animation-delay: 0.22s; }
.js .welcome.in .w4 { animation-delay: 0.3s; }
.js .welcome.in .w5 { animation-delay: 0.4s; }

/* ---------------- 首屏 ---------------- */
.hero { padding: 84px 0 60px; text-align: center; }
.hero-inner { will-change: transform; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--panel); color: var(--text-soft); font-size: 13px; margin-bottom: 22px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
.hero-title { font-size: clamp(36px, 7.4vw, 68px); letter-spacing: 0.05em; margin-bottom: 16px; color: #fff; }
.hero-sub { font-size: clamp(15px, 2vw, 17.5px); color: var(--text-soft); max-width: 620px; margin: 0 auto 22px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-bottom: 28px; }
.tag { font-size: 13px; padding: 5px 13px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); color: var(--text-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ---------------- 状态条：当前时间 + 当地天气 ---------------- */
.statusbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 12px;
  margin-top: 30px;
}
.clock, .weather {
  display: none;                 /* 由 JS 填好内容后再显示（.on），避免出现 ---- 占位 */
  align-items: center;
  flex-wrap: wrap;
  gap: 9px 14px;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: 14.5px;
  color: var(--text-soft);
}
.clock.on, .weather.on { display: flex; }
.clock-icon, .weather-icon { font-size: 15px; opacity: 0.9; }
.clock-time {
  font-family: var(--mono);
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;   /* 数字等宽，秒跳动时不抖动 */
}
.clock-sep { color: var(--line-strong); }
.clock-date { color: var(--text-soft); font-variant-numeric: tabular-nums; }
.clock-greet { color: var(--accent-2); }
.weather-city { color: var(--text-soft); }
.weather-temp {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.weather-desc { color: var(--accent-2); }

/* ---------------- 分区 ---------------- */
.section { padding: 56px 0; }
section[id] { scroll-margin-top: 80px; }
.section-head { max-width: 660px; margin-bottom: 30px; }
.section-head h2 { margin-bottom: 10px; }
.section-head p { color: var(--text-soft); margin: 0; font-size: 15px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------------- 卡片 ---------------- */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  position: relative; padding: 24px 22px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--panel);
  transition: transform 0.25s var(--ease), border-color 0.22s, background 0.22s;
}
.card:hover { border-color: var(--line-strong); background: var(--panel-2); }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--text-soft); font-size: 14.5px; margin: 0 0 12px; }
.card ul { margin: 0; padding-left: 18px; color: var(--text-soft); font-size: 14.2px; }
.card ul li { margin-bottom: 5px; }
.card-icon { font-size: 22px; margin-bottom: 12px; }
.card-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--accent-2); transition: gap 0.2s; }
.card-link:hover { gap: 11px; color: #fff; }

/* ---------------- 步骤 ---------------- */
.steps { display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding: 18px 20px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--panel); transition: border-color 0.22s, background 0.22s; }
.step:hover { border-color: var(--line-strong); background: var(--panel-2); }
.step-num { font-family: var(--mono); font-size: 15px; font-weight: 700; color: var(--accent); padding-top: 2px; }
.step h4 { margin-bottom: 4px; font-size: 16.5px; }
.step p { margin: 0; color: var(--text-soft); font-size: 14.5px; }

/* ---------------- 要点列表 ---------------- */
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 26px; color: var(--text-soft); font-size: 14.8px; }
.ticks li::before { content: "·"; position: absolute; left: 8px; top: -1px; color: var(--accent); font-size: 20px; font-weight: 700; }
.ticks.warn li::before { content: "!"; left: 6px; top: 1px; font-size: 13px; color: var(--danger); }

/* ---------------- 表格 ---------------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 500px; }
th, td { padding: 13px 15px; text-align: left; border-bottom: 1px solid var(--line); }
th { background: rgba(78, 168, 255, 0.06); color: #fff; font-size: 13.5px; }
td { color: var(--text-soft); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(78, 168, 255, 0.05); }
.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; border: 1px solid var(--line-strong); color: var(--accent-2); }

/* ---------------- FAQ ---------------- */
.faq { display: grid; gap: 10px; }
details.qa { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--panel); }
details.qa:hover { border-color: var(--line-strong); }
details.qa summary { cursor: pointer; list-style: none; padding: 13px 15px; font-weight: 600; font-size: 15px; }
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary::before { content: "＋ "; color: var(--accent); }
details.qa[open] summary::before { content: "－ "; }
details.qa .qa-body { padding: 0 15px 14px 15px; color: var(--text-soft); font-size: 14.5px; }

/* ---------------- 图集 ---------------- */
.gallery { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.shot {
  position: relative; margin: 0; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); background: #0b1220; cursor: zoom-in;
  transition: transform 0.25s var(--ease), border-color 0.22s;
}
.shot:hover { transform: translateY(-3px); border-color: var(--line-strong); }
.shot img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 0.4s var(--ease); }
.shot:hover img { transform: scale(1.05); }
.shot figcaption { padding: 12px 14px 14px; border-top: 1px solid var(--line); }
.shot figcaption b { display: block; font-size: 14.8px; margin-bottom: 2px; }
.shot figcaption span { font-size: 13px; color: var(--muted); }
.shot .shot-tag {
  position: absolute; top: 10px; left: 10px; z-index: 2;
  padding: 3px 10px; border-radius: 999px; font-size: 12px; color: #eaf4ff;
  background: rgba(6, 12, 24, 0.72); border: 1px solid var(--line);
}
.js .gallery .shot { animation: shotIn 0.5s var(--ease) backwards; }
@keyframes shotIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.filters { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 22px; }
.filters button {
  padding: 7px 15px; border-radius: 999px; font-size: 14px; color: var(--text-soft);
  background: var(--panel); border: 1px solid var(--line); cursor: pointer; font-family: inherit;
  transition: color 0.18s, background 0.18s, border-color 0.18s;
}
.filters button:hover { color: #fff; border-color: var(--line-strong); }
.filters button.active { color: #04101f; font-weight: 700; border-color: transparent; background: var(--accent); }

.figure { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--panel); }
.figure img { width: 100%; cursor: zoom-in; }
.figure figcaption { padding: 11px 15px; font-size: 13.5px; color: var(--muted); border-top: 1px solid var(--line); }

/* 灯箱 */
.lightbox {
  position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center;
  padding: 24px; background: rgba(3, 6, 13, 0.92);
  opacity: 0; visibility: hidden; transition: opacity 0.28s, visibility 0.28s;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox img {
  max-width: min(1100px, 92vw); max-height: 76vh; border-radius: 10px; object-fit: contain;
  transform: scale(0.96); opacity: 0; transition: transform 0.3s var(--ease), opacity 0.28s;
}
.lightbox.open img { transform: scale(1); opacity: 1; }
.lightbox .lb-cap { position: absolute; bottom: 28px; left: 0; right: 0; text-align: center; color: var(--text-soft); font-size: 14px; padding: 0 26px; }
.lightbox .lb-cap b { color: #fff; }
.lb-btn {
  position: absolute; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center;
  font-size: 18px; color: var(--text); background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line); cursor: pointer; transition: background 0.2s;
}
.lb-btn:hover { background: rgba(255, 255, 255, 0.16); }
.lb-close { top: 20px; right: 20px; }
.lb-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 16px; top: 50%; transform: translateY(-50%); }

/* ---------------- 提示框 ---------------- */
.note {
  display: flex; gap: 12px; padding: 16px 18px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--panel); color: var(--text-soft); font-size: 14.5px;
}
.note b { color: #fff; }
.note.danger { border-color: rgba(255, 128, 128, 0.32); background: rgba(255, 128, 128, 0.06); }
.note .note-icon { font-size: 18px; line-height: 1.5; }

pre { margin: 0 0 12px; padding: 15px 16px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: rgba(3, 7, 15, 0.7); overflow-x: auto; font-family: var(--mono); font-size: 13.2px; line-height: 1.7; color: #cfe1ff; }
code { font-family: var(--mono); font-size: 0.92em; padding: 2px 6px; border-radius: 6px; background: rgba(126, 169, 235, 0.12); color: #d8e8ff; }
pre code { padding: 0; background: none; }

/* ---------------- 联系 ---------------- */
.contact-card { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--panel); }
.profile { display: flex; gap: 16px; align-items: center; margin-bottom: 18px; }
.avatar {
  width: 84px; height: 84px; flex: 0 0 84px; border-radius: 18px; object-fit: cover;
  object-position: center 26%; border: 1px solid var(--line-strong); background: rgba(0, 0, 0, 0.3);
  transition: transform 0.3s var(--ease);
}
.avatar:hover { transform: scale(1.04); }
.profile h3 { margin: 0 0 3px; font-size: 20px; }
.profile p { margin: 0; color: var(--muted); font-size: 13.5px; }

.contact-list { display: grid; gap: 10px; }
.contact-row {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  border-radius: var(--radius-sm); border: 1px solid var(--line); background: rgba(6, 12, 24, 0.4);
  transition: border-color 0.2s, background 0.2s;
}
.contact-row:hover { border-color: var(--line-strong); background: var(--panel-2); }
.contact-row .ci { font-size: 17px; }
.contact-row .ct { min-width: 0; flex: 1; }
.contact-row .ct span { display: block; font-size: 12.4px; color: var(--muted); }
.contact-row .ct b { display: block; font-size: 15.5px; color: #fff; font-family: var(--mono); word-break: break-all; font-weight: 600; }
/* 联系方式做成超链：虚线下划线提示可点，仍是醒目白色 */
.contact-row .ct b a { color: #fff; border-bottom: 1px dashed rgba(126, 169, 235, 0.55); transition: color 0.18s, border-color 0.18s; }
.contact-row .ct b a:hover { color: var(--accent-2); border-bottom-color: var(--accent-2); }
.copy-btn {
  padding: 6px 12px; border-radius: 8px; font-size: 12.6px; font-family: inherit;
  color: var(--text-soft); background: var(--panel-2); border: 1px solid var(--line);
  cursor: pointer; white-space: nowrap; transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.copy-btn:hover { color: #fff; border-color: var(--line-strong); }
.copy-btn.done { color: #04101f; background: var(--ok); border-color: transparent; }

/* ---------------- 页脚 / 回到顶部 ---------------- */
.site-footer { margin-top: 32px; padding: 34px 0 26px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 24px; margin-bottom: 22px; }
.footer-grid h4 { font-size: 14.5px; margin-bottom: 12px; }
.footer-grid a, .footer-grid p { display: block; color: var(--muted); font-size: 14px; margin: 0 0 7px; }
.footer-grid a:hover { color: var(--accent-2); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }

.to-top {
  position: fixed; right: 18px; bottom: 20px; z-index: 60; width: 40px; height: 40px; border-radius: 10px;
  display: none; place-items: center; font-size: 17px; color: var(--text);
  background: rgba(10, 17, 32, 0.92); border: 1px solid var(--line-strong); cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}
.to-top.show { display: grid; }
.to-top:hover { border-color: var(--accent); transform: translateY(-2px); }

/* ---------------- 子页顶部 ---------------- */
.page-hero { padding: 56px 0 34px; }
.page-hero .crumb { font-size: 13.2px; color: var(--muted); margin-bottom: 12px; }
.page-hero .crumb a { color: var(--muted); }
.page-hero .crumb a:hover { color: var(--accent-2); }
.page-hero h1 { font-size: clamp(27px, 5vw, 40px); margin-bottom: 12px; }
.page-hero p.lead { color: var(--text-soft); font-size: 16px; max-width: 700px; }
.page-hero .hero-tags { justify-content: flex-start; margin: 18px 0 0; }

/* ---------------- 动画（仅 js） ---------------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 120; width: 100%; height: 2px;
  transform: scaleX(0); transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent)); pointer-events: none;
}
.js .anim-up { opacity: 0; transform: translateY(20px); }
.js.ready .anim-up { animation: upIn 0.75s var(--ease) forwards; }
.js.ready .anim-up.d1 { animation-delay: 0.04s; }
.js.ready .anim-up.d2 { animation-delay: 0.12s; }
.js.ready .anim-up.d3 { animation-delay: 0.2s; }
.js.ready .anim-up.d4 { animation-delay: 0.28s; }
.js.ready .anim-up.d5 { animation-delay: 0.36s; }
.js.ready .anim-up.d6 { animation-delay: 0.46s; }
@keyframes upIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.55s ease, transform 0.55s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 900px) {
  .contact-card { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch;
    gap: 2px; margin: 0; padding: 10px 16px 16px;
    background: rgba(7, 11, 20, 0.97); border-bottom: 1px solid var(--line); display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 11px 12px; font-size: 15px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; gap: 4px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 44px; }
  .section { padding: 44px 0; }
  .avatar { width: 72px; height: 72px; flex: 0 0 72px; border-radius: 16px; }
  .lightbox img { max-height: 68vh; }
  .lb-prev { left: 6px; }
  .lb-next { right: 6px; }
  .statusbar { gap: 8px; margin-top: 24px; }
  .clock, .weather { border-radius: var(--radius); padding: 9px 15px; gap: 4px 10px; font-size: 13.5px; }
  .clock-time { font-size: 17px; }
  .clock-sep { display: none; }
  .weather-temp { font-size: 15.5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fog { animation: none !important; }
  .js .reveal, .js .anim-up, .js .welcome .anim-w { opacity: 1 !important; transform: none !important; animation: none !important; }
  * { transition-duration: 0.01ms !important; }
}

/* ===========================================================
   毛玻璃 + 光标光效（放在最后，覆盖前面的实色面板）
   =========================================================== */

:root {
  --glass: rgba(255, 255, 255, 0.07);
  --glass-2: rgba(255, 255, 255, 0.12);
  --glass-line: rgba(255, 255, 255, 0.16);
  --glass-blur: blur(16px) saturate(150%);
  --glass-blur-sm: blur(10px) saturate(140%);
}

/* ---------------- 全站背景图（所有页面统一使用同一张壁纸）---------------- */
body::before {
  inset: -4%;
  z-index: -3;
  background: url("../images/hero-bg.jpg") center 32% / cover no-repeat;
  filter: saturate(0.95) brightness(0.82) blur(2px);
  transform: scale(1.05);
}
body::after {
  opacity: 1;
  background:
    radial-gradient(1100px 720px at 50% 4%, rgba(78, 168, 255, 0.18), transparent 64%),
    linear-gradient(180deg,
      rgba(6, 10, 19, 0.68) 0%,
      rgba(6, 10, 19, 0.52) 42%,
      rgba(6, 10, 19, 0.88) 100%);
  -webkit-mask-image: none;
  mask-image: none;
}
body .fog { opacity: 0.16; }

/* ---------------- 毛玻璃面板 ---------------- */
.site-header,
.card, .step, .contact-card, .contact-row, .clock, .weather,
.stat, details.qa, .note, .table-wrap, .welcome {
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.site-header { background: rgba(9, 14, 25, 0.5); }
.card, .step, .contact-row, .clock, .weather, .stat, details.qa {
  background: var(--glass);
  border-color: var(--glass-line);
}
.contact-card,
.note {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--glass-line);
}
.table-wrap { background: rgba(255, 255, 255, 0.04); border-color: var(--glass-line); }
th { background: rgba(255, 255, 255, 0.07); }
tbody tr:hover td { background: rgba(255, 255, 255, 0.05); }

/* 小标签与按钮：只做半透明，不加重模糊（省性能） */
.hero-badge, .tag, .filters button, .figure, .shot {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--glass-line);
}
.hero-badge, .filters button { -webkit-backdrop-filter: var(--glass-blur-sm); backdrop-filter: var(--glass-blur-sm); }

/* 悬停时更亮一点 */
.card:hover, .step:hover, .contact-row:hover,
.filters button:hover, .note:hover { background: var(--glass-2); }
details.qa[open] { background: var(--glass-2); }
details.qa:hover { border-color: rgba(255, 255, 255, 0.26); }

/* 欢迎页也透出背景 */
.welcome {
  background: rgba(5, 9, 17, 0.6);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
}

/* 移动端展开的导航也做毛玻璃 */
@media (max-width: 760px) {
  .site-nav {
    background: rgba(9, 14, 25, 0.86);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
  }
}

/* ---------------- 光标光效 ---------------- */
.cursor-glow {
  position: fixed;
  left: 0; top: 0;
  width: 560px; height: 560px;
  margin: -280px 0 0 -280px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 40;
  opacity: 0;
  transition: opacity 0.45s ease;
  background: radial-gradient(circle,
    rgba(150, 220, 255, 0.18) 0%,
    rgba(78, 168, 255, 0.10) 34%,
    rgba(78, 168, 255, 0.03) 55%,
    transparent 70%);
  mix-blend-mode: screen;
  will-change: transform;
}
.cursor-glow.on { opacity: 1; }
@media (hover: none) { .cursor-glow { display: none; } }
@media (prefers-reduced-motion: reduce) { .cursor-glow { display: none; } }

/* ---------------- 流体按钮 ---------------- */
.fluid-btn {
  position: relative;
  overflow: hidden;
  isolation: isolate;          /* 液面与文字分层可控 */
}

/* 液面：从鼠标进入点放大铺满整颗按钮 */
.fluid-blob {
  position: absolute;
  z-index: 0;
  width: 0; height: 0;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0.25);
  opacity: 0;
  background: radial-gradient(circle,
    rgba(255, 255, 255, 0.42) 0%,
    rgba(170, 225, 255, 0.26) 45%,
    rgba(120, 200, 255, 0.06) 70%,
    transparent 78%);
  transition: transform 0.55s cubic-bezier(0.22, 0.8, 0.25, 1), opacity 0.35s ease;
}
.fluid-blob.on { transform: translate(-50%, -50%) scale(1); opacity: 1; }

/* 文字浮在液面之上 */
.fluid-label {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* 悬停时内容像浮在液体上一样晃一下 */
@keyframes fluidJelly {
  0%   { transform: scale(1, 1); }
  28%  { transform: scale(1.06, 0.94); }
  52%  { transform: scale(0.975, 1.025); }
  76%  { transform: scale(1.015, 0.99); }
  100% { transform: scale(1, 1); }
}
.btn:hover .fluid-label,
.welcome-btn:hover .fluid-label,
.filters button:hover .fluid-label,
.copy-btn:hover .fluid-label { animation: fluidJelly 0.6s cubic-bezier(0.34, 1.4, 0.64, 1); }

/* 按下回弹：弹性曲线，松手有轻微过冲 */
.btn, .welcome-btn, .filters button, .copy-btn {
  transition: transform 0.34s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.25s, background 0.25s, border-color 0.25s, color 0.25s;
}
.btn:active, .welcome-btn:active, .filters button:active, .copy-btn:active {
  transform: scale(0.95);
}

/* 点击涟漪改成液体溅开（软边） */
.ripple {
  background: radial-gradient(circle,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(170, 225, 255, 0.3) 55%,
    transparent 72%);
}

@media (prefers-reduced-motion: reduce) {
  .fluid-blob { transition: none; }
  .btn:hover .fluid-label, .welcome-btn:hover .fluid-label,
  .filters button:hover .fluid-label, .copy-btn:hover .fluid-label { animation: none; }
}