/* ============================================================
   深空联合 · SPACETREK COLLECTIVE — 月弦阁主题重构
   鸣潮 3.0 拉海洛 / 星炬学院视觉体系
   ============================================================ */

:root {
  --abyss: #030710;
  --abyss-2: #060d1d;
  --deep: #0a1628;
  --panel: rgba(10, 22, 40, 0.62);
  --panel-strong: rgba(12, 26, 48, 0.82);
  --line: rgba(126, 214, 255, 0.22);
  --line-strong: rgba(126, 214, 255, 0.48);
  --ice: #7ed6ff;
  --ice-strong: #41c8ff;
  --ice-dim: #3b7ea6;
  --aurora: #6cf5c8;
  --violet: #9b8cff;
  --amber: #ffc76a;
  --danger: #ff7d7d;
  --text: #e9f5ff;
  --muted: #93a9c6;
  --muted-2: #5f7492;
  --glow: 0 0 18px rgba(126, 214, 255, 0.35);
  --font-display: "Orbitron", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 14px;
  --topbar-h: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; }

body {
  background: var(--abyss);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
}

::selection { background: rgba(126, 214, 255, 0.35); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--abyss); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--ice-dim), #1d3a52);
  border-radius: 6px;
  border: 2px solid var(--abyss);
}

a { color: var(--ice); text-decoration: none; transition: color .2s; }
a:hover { color: var(--ice-strong); }

img { max-width: 100%; }

/* ---------- 背景层：星野 + 极光 ---------- */
#starfield {
  position: fixed; inset: 0; z-index: -3;
  width: 100%; height: 100%;
}

.aurora-layer {
  position: fixed; inset: -20%; z-index: -2; pointer-events: none;
  background:
    radial-gradient(38% 26% at 18% 12%, rgba(65, 200, 255, 0.14), transparent 70%),
    radial-gradient(34% 24% at 82% 8%, rgba(108, 245, 200, 0.10), transparent 70%),
    radial-gradient(46% 34% at 55% 110%, rgba(80, 110, 255, 0.12), transparent 70%);
  filter: blur(10px);
  animation: auroraDrift 26s ease-in-out infinite alternate;
}

@keyframes auroraDrift {
  from { transform: translate3d(-2%, -1%, 0) rotate(-1deg); }
  to   { transform: translate3d(2%, 2%, 0) rotate(1.5deg); }
}

.ice-horizon {
  position: fixed; left: 0; right: 0; bottom: 0; height: 34vh; z-index: -2;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(38, 84, 122, 0.16) 60%, rgba(64, 130, 180, 0.22));
  mask-image: linear-gradient(180deg, transparent, #000 45%);
}

.grid-floor {
  position: fixed; left: -10%; right: -10%; bottom: -6%; height: 30vh; z-index: -1;
  pointer-events: none; opacity: .35;
  background-image:
    linear-gradient(rgba(126, 214, 255, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 214, 255, 0.10) 1px, transparent 1px);
  background-size: 46px 46px;
  transform: perspective(420px) rotateX(64deg);
  transform-origin: bottom;
  mask-image: linear-gradient(180deg, transparent, #000 70%);
}

.scanlines {
  position: fixed; inset: 0; z-index: 60; pointer-events: none; opacity: .05;
  background: repeating-linear-gradient(180deg, #cfeaff 0 1px, transparent 1px 4px);
  mix-blend-mode: overlay;
}

/* ---------- 通用 HUD 面板 ---------- */
.hud-panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.42), inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.hud-panel::before,
.hud-panel::after {
  content: ""; position: absolute; width: 12px; height: 12px; pointer-events: none;
  border: 0 solid var(--ice); opacity: .9;
  transition: width .25s ease, height .25s ease, filter .25s ease;
}
.hud-panel::before { top: -2px; left: -2px; border-top-width: 2px; border-left-width: 2px; }
.hud-panel::after { bottom: -2px; right: -2px; border-bottom-width: 2px; border-right-width: 2px; }

.hud-panel:hover { border-color: var(--line-strong); }
.hud-panel:hover::before, .hud-panel:hover::after {
  width: 18px; height: 18px;
  filter: drop-shadow(0 0 4px rgba(126, 214, 255, 0.8));
}

/* ---------- 标签 / 眉题 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 11px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--ice); opacity: .92;
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--ice));
}
.eyebrow .cn { font-family: var(--font-body); letter-spacing: .42em; }

.section-tag {
  font-family: var(--font-display); font-size: 10px; letter-spacing: .3em;
  color: var(--muted-2); text-transform: uppercase;
}

/* ---------- 顶栏 ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 26px;
  padding: 0 clamp(16px, 4vw, 44px);
  background: linear-gradient(180deg, rgba(4, 9, 18, 0.92), rgba(4, 9, 18, 0.72));
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
}

.brand {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--text); font-weight: 700; letter-spacing: .12em;
  white-space: nowrap;
}
.brand-logo {
  width: 34px; height: 34px; object-fit: contain;
  filter: invert(1) brightness(1.05) drop-shadow(0 0 8px rgba(126, 214, 255, 0.65));
}
.brand small {
  font-family: var(--font-display); font-size: 9px; letter-spacing: .3em;
  color: var(--muted-2); display: block; line-height: 1.2;
}
.brand .brand-cn { font-size: 16px; }

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  position: relative; padding: 8px 14px; font-size: 14px;
  color: var(--muted); letter-spacing: .08em; border-radius: 8px;
}
.nav a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 1px;
  background: var(--ice); transform: scaleX(0); transform-origin: left;
  transition: transform .25s;
}
.nav a:hover, .nav a.active { color: var(--text); }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }

.topbar-actions { display: flex; gap: 10px; align-items: center; }

/* ---------- 按钮 ---------- */
.btn {
  --btn-bg: rgba(126, 214, 255, 0.08);
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 11px 22px;
  font-family: var(--font-body); font-size: 14px; font-weight: 600; letter-spacing: .1em;
  color: var(--text); background: var(--btn-bg);
  border: 1px solid var(--line-strong); border-radius: 6px;
  cursor: pointer; transition: all .22s;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--glow); border-color: var(--ice); }

.btn-primary {
  background: linear-gradient(120deg, rgba(65, 200, 255, 0.24), rgba(65, 200, 255, 0.10));
  border-color: var(--ice);
  color: #eaf9ff;
  text-shadow: 0 0 12px rgba(126, 214, 255, 0.5);
}
.btn-primary:hover { background: linear-gradient(120deg, rgba(65, 200, 255, 0.4), rgba(65, 200, 255, 0.16)); }

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

.btn-sm { padding: 6px 14px; font-size: 12px; }

/* ---------- 布局 ---------- */
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

main { position: relative; z-index: 1; }

section { scroll-margin-top: calc(var(--topbar-h) + 20px); }

/* ---------- 页脚 ---------- */
.footer {
  position: relative; z-index: 1;
  padding: 34px 20px 30px; text-align: center;
  color: var(--muted-2); font-size: 12.5px; letter-spacing: .14em;
  border-top: 1px solid rgba(126, 214, 255, 0.12);
  margin-top: 60px;
}
.footer .footer-en { font-family: var(--font-display); font-size: 10px; letter-spacing: .34em; display: block; margin-top: 6px; }

/* ---------- 揭示动画 ---------- */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
[data-reveal].revealed, .reveal.visible { opacity: 1; transform: none; }

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 40;
  width: 42px; height: 42px; border-radius: 8px;
  background: var(--panel-strong); color: var(--ice);
  border: 1px solid var(--line-strong); cursor: pointer;
  opacity: 0; pointer-events: none; transition: all .3s;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.back-to-top.show { opacity: 1; pointer-events: auto; }
.back-to-top:hover { box-shadow: var(--glow); }

/* ---------- 侧边抽屉 ---------- */
.drawer-backdrop, .drawer-blur-mask {
  position: fixed; inset: 0; z-index: 70;
  background: rgba(2, 5, 10, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.drawer-backdrop.open, .drawer-blur-mask.open { opacity: 1; pointer-events: auto; }

.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 71;
  width: min(400px, 92vw);
  background: linear-gradient(160deg, rgba(8, 17, 32, 0.97), rgba(5, 10, 20, 0.97));
  border-left: 1px solid var(--line-strong);
  padding: 22px; overflow-y: auto;
  transform: translateX(102%); transition: transform .38s cubic-bezier(.2,.8,.2,1);
}
.drawer.open { transform: none; box-shadow: -30px 0 80px rgba(0,0,0,.5); }

.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 14px; margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.drawer-head h3 { font-size: 16px; letter-spacing: .12em; }
.drawer-close {
  background: none; border: 1px solid var(--line); color: var(--muted);
  width: 32px; height: 32px; border-radius: 6px; cursor: pointer;
}
.drawer-close:hover { color: var(--text); border-color: var(--ice); }

.drawer-quick-actions { display: grid; gap: 10px; margin-bottom: 20px; }
.drawer-quick-actions .btn { width: 100%; }

.drawer-desc { font-size: 12px; color: var(--muted-2); margin-bottom: 8px; }
.drawer-network-text { font-size: 12px; color: var(--muted); margin-bottom: 6px; font-family: var(--font-display); letter-spacing: .1em; }
.drawer-status-summary { font-size: 13px; color: var(--ice); margin-bottom: 12px; }

.status-indicator {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; margin-bottom: 14px;
  border: 1px solid var(--line); border-radius: 999px; font-size: 13px;
  background: rgba(126, 214, 255, 0.06);
}
.status-indicator::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--amber); box-shadow: 0 0 10px var(--amber);
}
.status-indicator.status-ok::before { background: var(--aurora); box-shadow: 0 0 10px var(--aurora); }
.status-indicator.status-bad::before { background: var(--danger); box-shadow: 0 0 10px var(--danger); }

.stats-tooltip {
  position: absolute; top: calc(100% + 8px); left: 0; z-index: 5;
  min-width: 210px; padding: 12px 14px;
  background: var(--panel-strong); border: 1px solid var(--line-strong); border-radius: 10px;
  opacity: 0; pointer-events: none; transform: translateY(-4px); transition: all .25s;
}
.status-indicator:hover .stats-tooltip { opacity: 1; transform: none; pointer-events: auto; }
.stats-header { font-size: 12px; color: var(--ice); margin-bottom: 8px; letter-spacing: .1em; }
.stats-item { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); padding: 2px 0; }
.stats-value { color: var(--text); font-family: var(--font-display); }

.drawer-status-list { display: grid; gap: 10px; margin-bottom: 16px; }
.drawer-loading { color: var(--muted-2); font-size: 13px; padding: 12px 0; }
.drawer-status-item {
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px;
  background: rgba(126, 214, 255, 0.04); font-size: 13px;
}
.drawer-status-item .st-name { color: var(--text); font-weight: 600; }
.drawer-status-item .st-info { color: var(--muted); font-size: 12px; }

.drawer-more-btn { width: 100%; margin-bottom: 10px; }

.drawer-thanks { margin-top: 24px; border-top: 1px solid var(--line); padding-top: 16px; }
.drawer-thanks h3 { font-size: 14px; margin-bottom: 12px; letter-spacing: .1em; }
.thanks-list-side { list-style: none; display: grid; gap: 6px; max-height: 300px; overflow-y: auto; }
.thanks-list-side a { font-size: 12px; color: var(--muted); font-family: var(--font-display); letter-spacing: .04em; }
.thanks-list-side a:hover { color: var(--ice); }

/* ============================================================
   开屏动画 SPLASH — 深空联合启动序列
   ============================================================ */
#splash-screen {
  position: fixed; inset: 0; z-index: 200;
  background: #01040a;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  transition: opacity 1s ease, visibility 1s;
}
#splash-screen.splash-done { opacity: 0; visibility: hidden; pointer-events: none; }

#splash-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.splash-flash {
  position: absolute; inset: 0; background: #dff4ff; opacity: 0; pointer-events: none;
}
.splash-flash.flash { animation: splashFlash .55s ease-out; }
@keyframes splashFlash { 0% { opacity: 0; } 18% { opacity: .9; } 100% { opacity: 0; } }

.splash-boot {
  position: absolute; top: clamp(20px, 5vh, 54px); left: clamp(20px, 5vw, 60px);
  font-family: var(--font-display); font-size: clamp(10px, 1.4vw, 13px);
  letter-spacing: .18em; color: var(--ice); opacity: .85;
  text-shadow: 0 0 8px rgba(126, 214, 255, .5);
  white-space: pre-line; line-height: 2.1;
}
.splash-boot .ok { color: var(--aurora); }

.splash-progress {
  position: absolute; bottom: clamp(22px, 6vh, 60px); left: clamp(20px, 5vw, 60px);
  font-family: var(--font-display); color: var(--muted);
  font-size: 12px; letter-spacing: .3em;
}
.splash-progress .pct { color: var(--ice); font-size: 22px; }

.splash-core {
  position: relative; text-align: center; z-index: 2;
  opacity: 0;
}
.splash-core.show { opacity: 1; }

.splash-emblem {
  position: relative; width: clamp(180px, 30vw, 260px); height: clamp(180px, 30vw, 260px);
  margin: 0 auto 26px;
}
.splash-emblem img {
  width: 100%; height: 100%; object-fit: contain;
  filter: invert(1) brightness(1.06) drop-shadow(0 0 22px rgba(126, 214, 255, 0.75));
}
.splash-emblem.glitch img { animation: emblemGlitch 1.1s steps(2) 1; }
@keyframes emblemGlitch {
  0% { transform: translate(0); clip-path: inset(0); opacity: 0; }
  8% { transform: translate(-6px, 2px); clip-path: inset(12% 0 64% 0); opacity: 1; }
  16% { transform: translate(5px, -3px); clip-path: inset(58% 0 8% 0); }
  24% { transform: translate(-3px, 1px); clip-path: inset(28% 0 40% 0); }
  34% { transform: translate(0); clip-path: inset(0); }
  46% { transform: translate(4px, 0); clip-path: inset(70% 0 4% 0); }
  58% { transform: translate(0); clip-path: inset(0); }
  100% { transform: translate(0); clip-path: inset(0); opacity: 1; }
}

.splash-ring {
  position: absolute; inset: -14%;
  border-radius: 50%;
  border: 1px solid rgba(126, 214, 255, 0.35);
  border-top-color: var(--ice);
  animation: ringSpin 5s linear infinite;
}
.splash-ring.r2 {
  inset: -26%; opacity: .4;
  border: none; border-radius: 50%;
  background: repeating-conic-gradient(rgba(126, 214, 255, 0.6) 0deg 5deg, transparent 5deg 14deg);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  animation-duration: 11s; animation-direction: reverse;
}
@keyframes ringSpin { to { transform: rotate(360deg); } }

.splash-title {
  font-size: clamp(38px, 7vw, 64px); font-weight: 800; letter-spacing: .34em;
  text-indent: .34em; color: #f2faff;
  text-shadow: 0 0 30px rgba(126, 214, 255, 0.6), 0 0 90px rgba(126, 214, 255, 0.3);
}
.splash-title .char { display: inline-block; opacity: 0; transform: translateY(18px) scale(1.15); filter: blur(6px); }
.splash-core.show .splash-title .char {
  animation: charIn .7s cubic-bezier(.2,.9,.3,1.2) forwards;
}
@keyframes charIn { to { opacity: 1; transform: none; filter: none; } }

.splash-sub-en {
  margin-top: 10px;
  font-family: var(--font-display); font-size: clamp(11px, 1.6vw, 15px);
  letter-spacing: .58em; text-indent: .58em; color: var(--ice);
}
.splash-sub-cn {
  margin-top: 16px; font-size: 13px; letter-spacing: .5em; text-indent: .5em;
  color: var(--muted);
}
.splash-sub-en, .splash-sub-cn { opacity: 0; }
.splash-core.show .splash-sub-en { animation: fadeUp .8s .55s ease forwards; }
.splash-core.show .splash-sub-cn { animation: fadeUp .8s .8s ease forwards; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.splash-hint {
  position: absolute; bottom: clamp(20px, 5vh, 46px); left: 50%; transform: translateX(-50%);
  font-size: 12px; letter-spacing: .4em; text-indent: .4em; color: var(--muted-2);
  opacity: 0; animation: hintPulse 2.2s ease-in-out infinite;
}
.splash-core.show ~ .splash-hint, #splash-screen.hint-on .splash-hint { opacity: 1; }
@keyframes hintPulse { 0%,100% { opacity: .25; } 50% { opacity: .9; } }

.splash-skip {
  position: absolute; right: clamp(18px, 4vw, 44px); bottom: clamp(20px, 5vh, 46px);
  z-index: 3; background: none; border: 1px solid var(--line);
  color: var(--muted); font-size: 12px; letter-spacing: .24em;
  padding: 8px 18px; border-radius: 4px; cursor: pointer; font-family: var(--font-body);
  transition: all .2s;
}
.splash-skip:hover { color: var(--text); border-color: var(--ice); box-shadow: var(--glow); }

.splash-frame {
  position: absolute; inset: clamp(10px, 2vw, 22px); pointer-events: none;
  border: 1px solid rgba(126, 214, 255, 0.14);
}
.splash-frame::before, .splash-frame::after {
  content: ""; position: absolute; width: 24px; height: 24px;
  border: 0 solid rgba(126, 214, 255, 0.65);
}
.splash-frame::before { top: -2px; left: -2px; border-top-width: 2px; border-left-width: 2px; }
.splash-frame::after { bottom: -2px; right: -2px; border-bottom-width: 2px; border-right-width: 2px; }

/* ============================================================
   首页
   ============================================================ */

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid; grid-template-columns: 1.15fr .85fr; align-items: center;
  gap: clamp(28px, 5vw, 64px);
  padding: calc(var(--topbar-h) + 48px) 0 64px;
}

.hero-title {
  margin: 18px 0 20px;
  font-size: clamp(34px, 5.4vw, 58px); font-weight: 800; line-height: 1.3;
  letter-spacing: .04em;
}
.hero-title .grad {
  background: linear-gradient(100deg, #c9efff 10%, var(--ice) 45%, var(--aurora) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: none;
}

.hero-desc { color: var(--muted); font-size: 15.5px; max-width: 54ch; }
.hero-desc .text-emphasis { color: var(--ice); font-weight: 600; }

.hero-highlights { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 30px; }
.highlight-pill {
  padding: 7px 16px; font-size: 12.5px; letter-spacing: .1em;
  color: var(--ice); border: 1px solid var(--line-strong); border-radius: 999px;
  background: rgba(126, 214, 255, 0.06);
}
.highlight-pill::before { content: "✦ "; color: var(--aurora); }

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

.hero-visual { position: relative; display: grid; justify-items: center; gap: 26px; }

.hero-emblem {
  position: relative; width: clamp(220px, 26vw, 320px); aspect-ratio: 1;
  display: grid; place-items: center;
}
.hero-emblem img {
  width: 82%; height: 82%; object-fit: contain;
  filter: invert(1) brightness(1.05) drop-shadow(0 0 26px rgba(126, 214, 255, 0.6));
  animation: emblemFloat 7s ease-in-out infinite;
}
@keyframes emblemFloat { 0%,100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-12px) rotate(1.2deg); } }
.hero-emblem .halo {
  position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid rgba(126, 214, 255, 0.3);
  border-top-color: var(--ice); border-bottom-color: rgba(108, 245, 200, 0.55);
  animation: ringSpin 14s linear infinite;
}
.hero-emblem .halo.h2 {
  inset: -9%; opacity: .35;
  border: none; border-radius: 50%;
  background: repeating-conic-gradient(rgba(126, 214, 255, 0.5) 0deg 5deg, transparent 5deg 14deg);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  animation-duration: 26s; animation-direction: reverse;
}

.hero-status-widget {
  width: min(360px, 100%);
  display: flex; gap: 18px; align-items: center;
  padding: 18px 20px;
}
.status-circle { position: relative; width: 84px; height: 84px; flex: 0 0 84px; }
.status-circle svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.circle-bg { fill: none; stroke: rgba(126, 214, 255, 0.14); stroke-width: 6; }
.circle-progress {
  fill: none; stroke: var(--ice); stroke-width: 6; stroke-linecap: round;
  stroke-dasharray: 264; stroke-dashoffset: 264;
  filter: drop-shadow(0 0 6px rgba(126, 214, 255, .8));
  transition: stroke-dashoffset 1.2s cubic-bezier(.2,.7,.2,1);
}
.circle-text {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--font-display); font-size: 13px; color: var(--text);
}
.hero-side-label { font-size: 11px; letter-spacing: .3em; color: var(--muted-2); font-family: var(--font-display); }
.hero-status-desc { font-size: 13.5px; color: var(--muted); margin: 4px 0 10px; }
.status-pills-row { display: flex; flex-wrap: wrap; gap: 6px; }
.status-pill {
  font-size: 11px; padding: 2px 9px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted);
}
.status-pill.ok { color: var(--aurora); border-color: rgba(108, 245, 200, .4); }
.status-pill.bad { color: var(--danger); border-color: rgba(255, 125, 125, .4); }
.hero-actions-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ---------- 功能区 bento ---------- */
.section-head { margin: 0 0 26px; }
.section-head h2 {
  margin-top: 10px; font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; letter-spacing: .06em;
}

.features-section { padding: 72px 0 20px; }

.features-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(3, 1fr);
}
.feature-card { padding: 26px 24px; transition: transform .3s, border-color .3s; }
.feature-card:hover { transform: translateY(-5px); }
.feature-card .feat-index {
  font-family: var(--font-display); font-size: 10px; letter-spacing: .3em;
  color: var(--muted-2);
}
.feature-card .feat-icon {
  margin: 12px 0 12px; width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--line-strong); border-radius: 10px;
  color: var(--ice); font-size: 20px;
  background: rgba(126, 214, 255, 0.07);
  box-shadow: inset 0 0 14px rgba(126, 214, 255, .08);
}
.feature-card h3 { font-size: 17px; letter-spacing: .1em; margin-bottom: 8px; }
.feature-card p { font-size: 13.5px; color: var(--muted); }

/* ---------- Bot 说明 ---------- */
.intro-section { padding: 56px 0 20px; }
.intro-panel { padding: 34px 32px; }
.intro-panel h2 { font-size: clamp(20px, 2.6vw, 26px); margin-bottom: 18px; letter-spacing: .06em; }
.model-list { display: grid; gap: 12px; }
.model-row {
  display: grid; grid-template-columns: 120px 1fr; gap: 14px; align-items: baseline;
  padding: 12px 16px; border: 1px solid var(--line); border-radius: 10px;
  background: rgba(126, 214, 255, 0.04);
}
.model-row .m-label { font-size: 12px; letter-spacing: .2em; color: var(--muted-2); }
.model-row .m-value { font-family: var(--font-display); font-size: 13px; color: var(--ice); letter-spacing: .04em; }

/* ---------- 价格 ---------- */
.pricing-section { padding: 72px 0 20px; }
.pricing-table-shell { padding: 30px 28px; margin-bottom: 20px; }
.pricing-head-note { color: var(--muted); font-size: 13.5px; margin-top: 6px; }

.pricing-flex-table { margin-top: 22px; display: grid; gap: 8px; }
.pricing-flex-head, .pricing-flex-row {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 10px; align-items: center;
}
.pricing-flex-head {
  font-family: var(--font-display); font-size: 11px; letter-spacing: .26em;
  color: var(--muted-2); padding: 0 16px 8px;
  border-bottom: 1px solid var(--line);
}
.pricing-flex-row {
  position: relative; padding: 15px 16px;
  border: 1px solid var(--line); border-radius: 10px;
  background: rgba(126, 214, 255, 0.03);
  transition: all .25s;
}
.pricing-flex-row:hover { border-color: var(--ice); background: rgba(126, 214, 255, 0.08); }
.pricing-flex-cell { font-size: 14.5px; }
.pricing-plan { font-weight: 700; letter-spacing: .12em; }
.pricing-tier-trial .pricing-plan { color: var(--aurora); }
.pricing-tier-normal .pricing-plan { color: var(--ice); }
.pricing-tier-advanced .pricing-plan { color: var(--violet); }
.pricing-tier-custom .pricing-plan { color: var(--amber); }
.pricing-custom-note { font-size: 13px; color: var(--muted); }
.pricing-row-cta {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  opacity: 0; transition: opacity .2s;
}
.pricing-flex-row:hover .pricing-row-cta { opacity: 1; }
.pricing-row-cta .btn { padding: 7px 16px; font-size: 12px; }

.pricing-tip-modern { margin-top: 16px; font-size: 13px; color: var(--amber); }
.pricing-cta-bottom { margin-top: 18px; text-align: center; }
.pricing-cta-note { margin-top: 8px; text-align: center; font-size: 12px; color: var(--muted-2); }

.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.price-card { padding: 24px; }
.price-card h3 { font-size: 16px; letter-spacing: .1em; margin-bottom: 12px; color: var(--ice); }
.price-card ul { list-style: none; display: grid; gap: 8px; }
.price-card li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--muted); }
.price-card li::before { content: "✦"; position: absolute; left: 0; color: var(--ice); font-size: 10px; top: 4px; }
.price-card.featured { border-color: var(--line-strong); background: linear-gradient(150deg, rgba(65, 200, 255, 0.10), rgba(10, 22, 40, 0.6)); }
.featured-badge {
  display: inline-block; margin-bottom: 10px; padding: 2px 12px;
  font-size: 11px; letter-spacing: .24em; color: #04101c;
  background: linear-gradient(90deg, var(--ice), var(--aurora)); border-radius: 3px;
  font-weight: 700;
}

.trial-rules { margin-top: 20px; padding: 26px 28px; }
.trial-rules h3 { font-size: 16px; margin-bottom: 12px; color: var(--amber); letter-spacing: .08em; }
.trial-rules p { font-size: 13.5px; color: var(--muted); margin-bottom: 6px; }
.trial-rules ul { list-style: none; display: grid; gap: 8px; margin-top: 10px; }
.trial-rules li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--muted); }
.trial-rules li::before { content: "▸"; position: absolute; left: 0; color: var(--amber); }
.trial-rules strong { color: var(--text); }

/* ---------- 条例 / 免责 ---------- */
.policy-section { padding: 56px 0 0; }
.policy-panel { padding: 30px 32px; }
.policy-panel h2 { font-size: clamp(19px, 2.4vw, 24px); margin-bottom: 16px; letter-spacing: .08em; }
.policy-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.policy-grid p {
  padding: 14px 16px; font-size: 13.5px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 10px; background: rgba(126, 214, 255, 0.03);
}
.disclaimer-list { padding-left: 20px; display: grid; gap: 10px; font-size: 13px; color: var(--muted); }
.disclaimer-list strong { color: var(--text); }

/* ---------- 联系 ---------- */
.contact-section { padding: 72px 0 30px; }
.contact-panel {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: center;
  padding: 40px 36px;
}
.contact-panel h2 { font-size: clamp(22px, 3vw, 30px); margin-bottom: 12px; letter-spacing: .06em; }
.contact-panel p { color: var(--muted); font-size: 14px; margin-bottom: 22px; }
.contact-qr { padding: 18px; text-align: center; }
.contact-qr img {
  width: 180px; height: 180px; object-fit: contain; border-radius: 10px;
  border: 1px solid var(--line-strong); background: #fff; padding: 8px;
}
.contact-qr .qr-cap { margin-top: 10px; font-size: 11px; letter-spacing: .3em; color: var(--muted-2); }

/* ============================================================
   功能指南页
   ============================================================ */
.guide-page { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: calc(var(--topbar-h) + 44px) 0 60px; }

.guide-hero { margin-bottom: 26px; }
.guide-hero h1 { font-size: clamp(26px, 4vw, 38px); letter-spacing: .08em; margin: 12px 0 8px; }
.guide-hero p { color: var(--muted); font-size: 14.5px; }
.guide-actions { display: flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }

.search-panel { padding: 22px 24px; margin-bottom: 24px; }
.search-panel h2 { font-size: 16px; letter-spacing: .14em; margin-bottom: 14px; color: var(--ice); }
.search-wrapper { position: relative; }
.search-input {
  width: 100%; padding: 13px 44px 13px 16px;
  background: rgba(3, 8, 16, 0.7); border: 1px solid var(--line-strong); border-radius: 8px;
  color: var(--text); font-size: 14.5px; outline: none; font-family: var(--font-body);
  transition: all .2s;
}
.search-input:focus { border-color: var(--ice); box-shadow: var(--glow); }
.search-input::placeholder { color: var(--muted-2); }
.search-clear-btn {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--muted); cursor: pointer; font-size: 14px;
}
.search-clear-btn:hover { color: var(--text); }
.search-stats { margin-top: 10px; font-size: 12px; color: var(--muted-2); font-family: var(--font-display); letter-spacing: .12em; }

.guide-card { padding: 24px; margin-bottom: 18px; }
.guide-card > h2 { font-size: 16px; letter-spacing: .14em; margin-bottom: 12px; color: var(--ice); }
.guide-card > h3 {
  font-size: 16px; letter-spacing: .12em; margin-bottom: 16px; color: var(--text);
  display: flex; align-items: center; gap: 10px;
}
.guide-card > h3::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-strong), transparent); }
.guide-card > p { font-size: 13px; color: var(--muted); margin-bottom: 12px; }

.plugin-item {
  padding: 14px 16px; margin-bottom: 10px;
  border: 1px solid var(--line); border-radius: 10px;
  background: rgba(126, 214, 255, 0.03);
  transition: border-color .2s;
}
.plugin-item:hover { border-color: var(--line-strong); }
.plugin-item.is-hidden { display: none; }
.plugin-header { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.plugin-header h4 { font-size: 14.5px; letter-spacing: .06em; }
.plugin-id { font-family: var(--font-display); font-size: 10.5px; color: var(--muted-2); letter-spacing: .06em; }
.plugin-item code {
  display: inline-block; margin: 3px 6px 3px 0; padding: 3px 10px;
  font-size: 12px; border-radius: 5px;
  background: rgba(65, 200, 255, 0.10); border: 1px solid rgba(65, 200, 255, 0.25);
  color: var(--ice); font-family: "JetBrains Mono", Consolas, monospace;
}
.plugin-item p { font-size: 12.5px; color: var(--muted); margin-top: 4px; }

.show-image-btn {
  margin: 4px 0 10px; padding: 7px 16px; font-size: 12px; letter-spacing: .1em;
  background: rgba(126, 214, 255, 0.07); color: var(--ice);
  border: 1px solid var(--line-strong); border-radius: 6px; cursor: pointer; transition: all .2s;
}
.show-image-btn:hover { box-shadow: var(--glow); }

.image-overlay {
  position: fixed; inset: 0; z-index: 90; display: grid; place-items: center;
  background: rgba(2, 5, 10, 0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.image-overlay.open { opacity: 1; pointer-events: auto; }
.overlay-inner { position: relative; max-width: min(920px, 92vw); }
.overlay-inner img { max-height: 82vh; border-radius: 10px; border: 1px solid var(--line-strong); }
.overlay-close {
  position: absolute; top: -14px; right: -14px; width: 34px; height: 34px;
  border-radius: 50%; border: 1px solid var(--line-strong);
  background: var(--panel-strong); color: var(--text); cursor: pointer;
}

/* ============================================================
   留言板页
   ============================================================ */
.board-page { width: min(980px, calc(100% - 40px)); margin: 0 auto; padding: calc(var(--topbar-h) + 44px) 0 60px; }
.board-hero { margin-bottom: 22px; }
.board-title { font-size: clamp(24px, 3.6vw, 34px); letter-spacing: .08em; margin: 12px 0 6px; }
.board-subtitle { color: var(--muted); font-size: 14px; }

.composer-bar { padding: 22px 24px; margin-bottom: 26px; }
.composer-login-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; }
.composer-post { display: grid; gap: 14px; }
.composer-actions { display: flex; justify-content: flex-end; }

.board-input, .board-textarea {
  width: 100%; padding: 12px 15px;
  background: rgba(3, 8, 16, 0.7); border: 1px solid var(--line);
  border-radius: 8px; color: var(--text); font-size: 14.5px;
  outline: none; font-family: var(--font-body); transition: all .2s;
}
.board-textarea { min-height: 96px; resize: vertical; }
.board-input:focus, .board-textarea:focus { border-color: var(--ice); box-shadow: var(--glow); }
.board-input::placeholder, .board-textarea::placeholder { color: var(--muted-2); }

.user-profile { display: flex; align-items: center; gap: 12px; }
.user-qq { font-weight: 700; font-family: var(--font-display); letter-spacing: .06em; }
.logout-btn { margin-left: auto; }

.msg-item { display: flex; gap: 16px; padding: 20px 22px; margin-bottom: 14px; }
.msg-avatar {
  width: 46px; height: 46px; flex: 0 0 46px; border-radius: 10px; object-fit: cover;
  border: 1px solid var(--line-strong);
}
.msg-body { flex: 1; min-width: 0; }
.msg-head { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.msg-qq { font-weight: 700; font-size: 14.5px; font-family: var(--font-display); letter-spacing: .04em; }
.msg-time { font-size: 11.5px; color: var(--muted-2); }
.msg-content { font-size: 14px; color: rgba(233, 245, 255, 0.9); white-space: pre-wrap; word-break: break-word; }
.reply-box {
  margin-top: 12px; padding: 12px 14px; font-size: 13px;
  border-left: 2px solid var(--aurora); border-radius: 0 8px 8px 0;
  background: rgba(108, 245, 200, 0.06); color: var(--muted);
}
.reply-title { display: block; font-size: 11px; color: var(--aurora); letter-spacing: .14em; margin-bottom: 4px; }

.loading-text, .error-text, .empty-state-card { text-align: center; color: var(--muted); padding: 30px 10px; }
.error-text { color: var(--danger); }
.empty-icon { font-size: 22px; margin-bottom: 6px; }
.empty-title { font-weight: 600; color: var(--text); }
.empty-sub { font-size: 12.5px; color: var(--muted-2); }

.cookie-banner {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 80;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 14px 24px; font-size: 13px;
  background: rgba(5, 10, 20, 0.96); border-top: 1px solid var(--line-strong);
  transform: translateY(100%); transition: transform .4s;
}
.cookie-banner.show { transform: none; }
.cookie-btn {
  flex: 0 0 auto; padding: 8px 20px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--ice); background: rgba(65, 200, 255, 0.15); color: var(--text);
  font-weight: 600; letter-spacing: .1em;
}

/* ============================================================
   状态页
   ============================================================ */
.status-page { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: calc(var(--topbar-h) + 44px) 0 60px; display: grid; gap: 22px; }
.status-hero-panel { padding: 28px 30px; }
.status-hero-panel h1 { font-size: clamp(24px, 3.4vw, 32px); letter-spacing: .08em; margin: 12px 0 8px; }
.status-hero-panel > p { color: var(--muted); font-size: 14px; }
.status-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.meta-pill {
  font-size: 12px; padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--line-strong); color: var(--ice);
  background: rgba(126, 214, 255, 0.06); font-family: var(--font-display); letter-spacing: .1em;
}

.status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.status-full-card { padding: 18px 20px; display: grid; gap: 8px; position: relative; }
.status-full-card:has(.status-login-link) .status-full-detail { padding-right: 104px; }
.status-full-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.status-head-left { display: flex; align-items: center; gap: 12px; min-width: 0; }
.status-avatar-wrap {
  width: 48px; height: 48px; flex: 0 0 48px; border-radius: 12px; overflow: hidden;
  border: 1px solid var(--line-strong); background: rgba(126, 214, 255, 0.06);
}
.status-avatar { width: 100%; height: 100%; object-fit: cover; }
.status-full-name { font-weight: 700; font-size: 15px; display: flex; align-items: center; flex-wrap: wrap; }
.status-full-qq, .status-full-detail { font-size: 12.5px; color: var(--muted); }
.region-tag {
  display: inline-flex; margin-left: 8px; padding: 1px 9px; border-radius: 999px;
  font-size: 10.5px; font-weight: 700; font-family: var(--font-display);
}
.region-tag.region-astr { color: var(--ice); background: rgba(65, 200, 255, 0.14); border: 1px solid rgba(65, 200, 255, 0.3); }
.region-tag.region-na { color: var(--amber); background: rgba(255, 199, 106, 0.12); border: 1px solid rgba(255, 199, 106, 0.3); }
.note-tag {
  display: inline-block; margin-left: 8px; padding: 1px 9px; border-radius: 999px;
  font-size: 10.5px; color: var(--amber); border: 1px solid rgba(255, 199, 106, 0.35);
}
.status-badge { font-size: 11.5px; padding: 4px 11px; border-radius: 999px; white-space: nowrap; }
.status-badge.ok { color: var(--aurora); background: rgba(108, 245, 200, 0.10); border: 1px solid rgba(108, 245, 200, 0.4); }
.status-badge.temp { color: var(--amber); background: rgba(255, 199, 106, 0.10); border: 1px solid rgba(255, 199, 106, 0.4); }
.status-badge.ban { color: var(--danger); background: rgba(255, 125, 125, 0.10); border: 1px solid rgba(255, 125, 125, 0.4); }
.status-badge.offline { color: var(--muted); background: rgba(147, 169, 198, 0.10); border: 1px solid rgba(147, 169, 198, 0.4); }
.status-login-link { position: absolute; right: 16px; bottom: 14px; font-size: 12px; }
.status-loading, .status-empty, .status-error {
  grid-column: 1 / -1; padding: 22px; text-align: center;
  border: 1px dashed var(--line-strong); border-radius: 12px; color: var(--muted);
}
.status-error { color: var(--danger); }

/* ============================================================
   结算页
   ============================================================ */
.pay-page {
  min-height: 100vh; min-height: 100dvh; display: grid; place-items: center;
  padding: calc(var(--topbar-h) + 30px) 20px 60px;
}
.pay-card { width: min(460px, 100%); padding: 40px 34px; text-align: center; }
.pay-card .eyebrow { justify-content: center; }
.pay-card-title { font-size: 26px; letter-spacing: .2em; margin: 14px 0 24px; }
.pay-qrcode-box {
  padding: 16px; border: 1px solid var(--line-strong); border-radius: 12px;
  background: rgba(126, 214, 255, 0.05); display: inline-block;
}
.pay-qrcode-box img { width: 240px; height: 240px; object-fit: contain; border-radius: 8px; background: #fff; }
.pay-remark-hint { margin-top: 20px; font-size: 13px; color: var(--amber); letter-spacing: .06em; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: calc(var(--topbar-h) + 70px); }
  .hero-visual { order: -1; }
  .hero-emblem { width: clamp(160px, 40vw, 220px); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-panel { grid-template-columns: 1fr; }
  .policy-grid { grid-template-columns: 1fr; }
  .status-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav { display: none; }
  .topbar { padding: 0 16px; gap: 14px; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-flex-head { display: none; }
  .pricing-flex-row { grid-template-columns: 1fr; gap: 4px; }
  .pricing-flex-cell::before { content: attr(data-label); display: block; font-size: 10px; color: var(--muted-2); letter-spacing: .2em; }
  .pricing-flex-cell.pricing-plan::before { display: none; }
  .pricing-row-cta { position: static; transform: none; opacity: 1; margin-top: 8px; }
  .composer-login-row { grid-template-columns: 1fr; }
  .model-row { grid-template-columns: 1fr; gap: 2px; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }

  /* 输入框 ≥16px，避免 iOS 聚焦自动放大页面 */
  .search-input, .board-input, .board-textarea { font-size: 16px; }

  /* 长命令在小屏自动换行 */
  .plugin-item code { word-break: break-all; white-space: normal; }

  /* Hero 状态组件防挤压 */
  .hero-status-widget { gap: 14px; padding: 16px; }
  .status-info { min-width: 0; }
  .status-circle { width: 72px; height: 72px; flex-basis: 72px; }

  /* 开屏动画小屏适配：底部三元素错位，避免重叠 */
  .splash-hint { bottom: 64px; font-size: 11px; }
  .splash-progress { font-size: 10px; letter-spacing: .2em; }
  .splash-progress .pct { font-size: 16px; }
  .splash-skip { padding: 6px 12px; font-size: 11px; }
  .splash-boot { line-height: 1.9; }
  .splash-title { letter-spacing: .22em; text-indent: .22em; }

  /* 抽屉与弹层全屏化 */
  .drawer { width: min(400px, 100vw); }
  .overlay-inner { max-width: 96vw; }
  .overlay-close { top: -10px; right: -6px; }

  /* 留言卡片收紧 */
  .msg-item { gap: 12px; padding: 16px; }
  .msg-avatar { width: 40px; height: 40px; flex-basis: 40px; }

  /* 结算二维码适配窄屏 */
  .pay-card { padding: 30px 20px; }
  .pay-qrcode-box img { width: min(240px, 62vw); height: auto; }
}

@media (max-width: 400px) {
  .hero-title { font-size: 30px; }
  .brand small { display: none; }
  .hero-actions .btn { width: 100%; }
  .guide-actions .btn { flex: 1; justify-content: center; }
  .status-meta .meta-pill { font-size: 11px; padding: 5px 10px; }
}