/* ============================================================
   硬核主板学园 · Hardware Academy  —  ROG 暗黑风设计系统
   参考 ASUS ROG / ROG Strix 视觉语言（黑底 + 血红 + 电光青）
   ============================================================ */
:root{
  --red:#ff2d4d; --red2:#ff5f6e; --red-dim:rgba(255,45,77,.14);
  --cyan:#00e5ff; --cyan-dim:rgba(0,229,255,.12);
  --gold:#ffc247; --green:#2fd07a; --purple:#b18cff;
  --bg:#07070d; --bg2:#0b0b14;
  --panel:#10101c; --panel2:#161627; --panel3:#1c1c30;
  --line:rgba(255,255,255,.09); --line-red:rgba(255,45,77,.35);
  --txt:#e9edf6; --muted:#939cb4; --faint:#5c6478;
  --mono:'Cascadia Code','JetBrains Mono',Consolas,'Courier New',monospace;
  --sans:'Segoe UI','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--txt); font-family:var(--sans);
  line-height:1.75; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--red); color:#fff}
a{color:var(--cyan); text-decoration:none}
a:hover{color:#7ff1ff}
img,svg{max-width:100%; height:auto; display:block}
button{font-family:inherit}

/* ---------- 背景电路板纹理 ---------- */
body::before{
  content:''; position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:
    radial-gradient(1000px 500px at 85% -5%, rgba(255,45,77,.08), transparent 60%),
    radial-gradient(800px 500px at -10% 30%, rgba(0,229,255,.05), transparent 60%),
    var(--bg);
}
body::after{
  content:''; position:fixed; inset:0; z-index:-1; pointer-events:none; opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260' viewBox='0 0 260 260'%3E%3Cg fill='none' stroke='%231b2233' stroke-width='1.2'%3E%3Cpath d='M20 20h60v40h50M20 20v60h40v50M240 240h-60v-40h-50M240 240v-60h-40v-50M130 60v40h30M130 200v-40h-30M60 130h40v-30M200 130h-40v30'/%3E%3C/g%3E%3Cg fill='%23232b40'%3E%3Ccircle cx='20' cy='20' r='3'/%3E%3Ccircle cx='130' cy='60' r='3'/%3E%3Ccircle cx='240' cy='240' r='3'/%3E%3Ccircle cx='130' cy='200' r='3'/%3E%3Ccircle cx='60' cy='130' r='3'/%3E%3Ccircle cx='200' cy='130' r='3'/%3E%3C/g%3E%3C/svg%3E");
}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky; top:0; z-index:100; display:flex; align-items:center; gap:16px;
  padding:10px 22px; background:rgba(7,7,13,.86); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-red);
}
.topbar .logo{display:flex; align-items:center; gap:10px; color:var(--txt); font-weight:700; font-size:17px; letter-spacing:.5px; white-space:nowrap}
.topbar .logo:hover{color:#fff}
.topbar .logo svg{width:34px; height:34px; filter:drop-shadow(0 0 6px rgba(255,45,77,.6))}
.topbar .logo em{font-style:normal; color:var(--red); font-size:12px; display:block; letter-spacing:2px; line-height:1.1; font-family:var(--mono)}
.topbar .logo b{display:block; line-height:1.2}
.topnav{display:flex; gap:2px; margin-left:8px; flex-wrap:wrap; flex:1}
.topnav a{
  color:var(--muted); font-size:13px; padding:5px 10px; border-radius:4px;
  letter-spacing:.3px; transition:.15s; white-space:nowrap;
}
.topnav a:hover{color:#fff; background:var(--red-dim)}
.topnav a.cur{color:var(--red2); background:var(--red-dim); box-shadow:inset 0 -2px 0 var(--red)}
.prog-pill{
  display:flex; align-items:center; gap:8px; font-size:12px; color:var(--muted);
  border:1px solid var(--line); border-radius:99px; padding:4px 12px 4px 8px; white-space:nowrap;
}
.prog-pill .mini{width:70px; height:5px; border-radius:99px; background:rgba(255,255,255,.1); overflow:hidden}
.prog-pill .mini i{display:block; height:100%; width:0; background:linear-gradient(90deg,var(--red),var(--gold)); border-radius:99px; transition:width .6s}
.prog-pill b{color:var(--gold); font-family:var(--mono)}
.portal-link{font-size:12px; color:var(--faint); white-space:nowrap}
.portal-link:hover{color:var(--cyan)}

/* ---------- 布局 ---------- */
.wrap{max-width:1180px; margin:0 auto; padding:0 22px}
.page-head{padding:54px 0 8px}
.crumb{font-family:var(--mono); font-size:12px; color:var(--faint); letter-spacing:1px; margin-bottom:10px}
.crumb b{color:var(--red)}
h1.hero-t{font-size:clamp(26px,4.5vw,44px); font-weight:900; letter-spacing:1px; line-height:1.25}
h1.hero-t .hl{color:var(--red); text-shadow:0 0 24px rgba(255,45,77,.5)}
.hero-sub{color:var(--muted); font-size:15.5px; max-width:820px; margin-top:12px}
.hero-sub b{color:var(--cyan); font-weight:600}

/* 章节大数字 */
.ch-no{
  display:inline-flex; align-items:baseline; gap:8px; font-family:var(--mono);
  color:var(--red); margin-bottom:6px;
}
.ch-no .n{font-size:52px; font-weight:800; line-height:1; text-shadow:0 0 30px rgba(255,45,77,.45)}
.ch-no .lab{font-size:13px; color:var(--faint); letter-spacing:3px}

/* ---------- 区块标题 ---------- */
h2.sec{
  display:flex; align-items:center; gap:12px; font-size:22px; font-weight:800;
  margin:52px 0 8px; letter-spacing:.5px;
}
h2.sec::before{
  content:''; width:10px; height:26px; background:linear-gradient(180deg,var(--red),#8a1030);
  clip-path:polygon(0 0,100% 0,100% 78%,50% 100%,0 78%); flex:none;
  box-shadow:0 0 14px rgba(255,45,77,.5);
}
h2.sec .tag{font-size:11px; font-family:var(--mono); color:var(--cyan); border:1px solid rgba(0,229,255,.35); padding:1px 8px; border-radius:3px; letter-spacing:1px; font-weight:400}
h3.sub{font-size:17px; font-weight:700; margin:30px 0 6px; color:var(--gold)}
h3.sub::before{content:'▸ '; color:var(--red)}
p.lead{color:var(--muted); max-width:900px}
p strong{color:#fff}
.hl-red{color:var(--red2); font-weight:600}
.hl-cyan{color:var(--cyan); font-weight:600}
.hl-gold{color:var(--gold); font-weight:600}
.hl-green{color:var(--green); font-weight:600}

/* ---------- 卡片 ---------- */
.grid{display:grid; gap:16px; margin:20px 0}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card{
  background:linear-gradient(160deg,var(--panel),var(--panel2));
  border:1px solid var(--line); border-radius:10px; padding:20px; position:relative;
  transition:.2s; overflow:hidden;
}
.card::before{
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg,transparent,var(--red),transparent);
  opacity:0; transition:.25s;
}
.card:hover{border-color:var(--line-red); transform:translateY(-3px); box-shadow:0 10px 34px rgba(0,0,0,.5)}
.card:hover::before{opacity:1}
.card .ic{font-size:26px; line-height:1; margin-bottom:8px}
.card h4{font-size:15.5px; margin-bottom:6px; color:#fff}
.card p{font-size:13px; color:var(--muted); line-height:1.7}
.card .num{position:absolute; top:10px; right:14px; font-family:var(--mono); font-size:12px; color:var(--faint)}

/* ---------- 插图（SVG 图解） ---------- */
.fig{
  background:radial-gradient(600px 300px at 50% 0%,rgba(0,229,255,.045),transparent),var(--panel);
  border:1px solid var(--line); border-radius:12px; padding:22px 18px 12px; margin:22px 0;
}
.fig .fig-t{
  font-size:13px; color:var(--cyan); font-family:var(--mono); letter-spacing:1px;
  display:flex; align-items:center; gap:8px; margin-bottom:14px;
}
.fig .fig-t::before{content:'◈'; color:var(--red)}
.fig .cap{font-size:12.5px; color:var(--faint); text-align:center; padding:10px 6px 6px; border-top:1px dashed var(--line); margin-top:12px}
.fig svg text{font-family:var(--mono)}
.fig svg .zh{font-family:var(--sans)}

/* ---------- 步骤流 ---------- */
.steps{counter-reset:st; margin:20px 0; display:grid; gap:12px}
.step{
  position:relative; padding:16px 18px 16px 64px; background:var(--panel);
  border:1px solid var(--line); border-radius:10px; counter-increment:st; transition:.2s;
}
.step:hover{border-color:var(--line-red); background:var(--panel2)}
.step::before{
  content:counter(st,decimal-leading-zero); position:absolute; left:14px; top:50%; transform:translateY(-50%);
  font-family:var(--mono); font-weight:800; font-size:20px; color:var(--red);
  text-shadow:0 0 14px rgba(255,45,77,.5);
}
.step::after{content:''; position:absolute; left:44px; top:50%; transform:translateY(-50%); width:1px; height:60%; background:linear-gradient(180deg,transparent,var(--line-red),transparent)}
.step b{color:#fff}
.step p{font-size:13.5px; color:var(--muted); margin-top:3px}
.step .zh-tip{display:inline-block; font-size:12px; color:var(--gold); background:rgba(255,194,71,.08); border:1px solid rgba(255,194,71,.25); border-radius:4px; padding:0 8px; margin-left:6px}

/* ---------- 提示框 ---------- */
.callout{border-radius:10px; padding:14px 18px; margin:18px 0; font-size:13.5px; border:1px solid; position:relative; padding-left:46px}
.callout::before{position:absolute; left:16px; top:12px; font-size:18px}
.callout b{display:block; margin-bottom:2px; font-size:14px}
.callout.danger{background:rgba(255,45,77,.06); border-color:rgba(255,45,77,.4); color:#ffb9c3}
.callout.danger::before{content:'⚠️'}
.callout.danger b{color:var(--red2)}
.callout.tip{background:var(--cyan-dim); border-color:rgba(0,229,255,.35); color:#bdf2fb}
.callout.tip::before{content:'💡'}
.callout.tip b{color:var(--cyan)}
.callout.rogo{background:rgba(177,140,255,.06); border-color:rgba(177,140,255,.35); color:#d9cbff}
.callout.rogo::before{content:'🧠'}
.callout.rogo b{color:var(--purple)}
.callout.ok{background:rgba(47,208,122,.06); border-color:rgba(47,208,122,.35); color:#c4f2da}
.callout.ok::before{content:'✅'}
.callout.ok b{color:var(--green)}

/* ---------- 表格 ---------- */
.tbl{width:100%; border-collapse:collapse; margin:16px 0; font-size:13.5px}
.tbl th{
  background:linear-gradient(180deg,var(--panel3),var(--panel2)); color:var(--red2);
  font-weight:700; text-align:left; padding:10px 12px; border:1px solid var(--line);
  letter-spacing:.5px; font-size:12.5px;
}
.tbl td{padding:9px 12px; border:1px solid var(--line); color:var(--muted); background:rgba(255,255,255,.015)}
.tbl tr:hover td{background:var(--red-dim); color:#fff}
.tbl td b{color:var(--txt)}
.tbl .mono{font-family:var(--mono); color:var(--cyan)}

/* 电压/引脚彩色标签 */
.pv{display:inline-block; font-family:var(--mono); font-size:11.5px; font-weight:700; border-radius:4px; padding:0 7px; margin:1px; color:#0a0a10}
.pv.y{background:#ffd23e} .pv.r{background:#ff5f4d; color:#fff} .pv.o{background:#ff9433}
.pv.blk{background:#2a2a35; color:#cfd4e2; border:1px solid #444}
.pv.g{background:#43b649; color:#fff} .v-b{background:#3f7dff; color:#fff} .pv.v{background:#a469ff; color:#fff}
.pv.c{background:var(--cyan)} .pv.gy{background:#8b93a8; color:#0a0a10} .pv.pk{background:#ff7ab8; color:#300}

/* ---------- 徽章 / 章节卡 ---------- */
.chapters{display:grid; grid-template-columns:repeat(auto-fill,minmax(255px,1fr)); gap:14px; margin:24px 0}
.chcard{
  display:flex; flex-direction:column; gap:6px; padding:18px 16px 14px;
  background:linear-gradient(155deg,var(--panel),var(--panel2)); border:1px solid var(--line);
  border-radius:12px; color:var(--txt); position:relative; transition:.2s; overflow:hidden;
}
.chcard::after{
  content:''; position:absolute; right:-30px; top:-30px; width:90px; height:90px;
  background:radial-gradient(circle,rgba(255,45,77,.22),transparent 70%); opacity:0; transition:.25s;
}
.chcard:hover{transform:translateY(-4px); border-color:var(--line-red); box-shadow:0 14px 38px rgba(0,0,0,.55),0 0 24px rgba(255,45,77,.12)}
.chcard:hover::after{opacity:1}
.chcard.done{border-color:rgba(47,208,122,.5)}
.chcard .cn{font-family:var(--mono); font-size:11px; color:var(--red); letter-spacing:2px}
.chcard .ct{font-weight:800; font-size:16px; color:#fff; display:flex; align-items:center; gap:8px}
.chcard .cd{font-size:12.5px; color:var(--muted); flex:1; line-height:1.65}
.chcard .st{font-size:11px; font-family:var(--mono); color:var(--faint); display:flex; align-items:center; gap:6px}
.chcard.done .st{color:var(--green)}
.chcard .ring{width:34px; height:34px; margin-left:auto; flex:none}
.chcard .ic-big{font-size:22px}

/* ---------- 完成按钮 ---------- */
.done-bar{
  margin:46px 0 20px; padding:18px 20px; border-radius:12px;
  background:linear-gradient(120deg,rgba(255,45,77,.1),rgba(0,229,255,.06));
  border:1px solid var(--line-red); display:flex; align-items:center; gap:16px; flex-wrap:wrap;
}
.done-bar .dtxt{flex:1; min-width:200px; font-size:14px}
.done-bar .dtxt b{color:var(--gold)}
.btn-done{
  background:linear-gradient(120deg,var(--red),#c11a3a); color:#fff; border:0; cursor:pointer;
  font-size:14.5px; font-weight:700; padding:10px 26px; border-radius:8px; letter-spacing:1px;
  transition:.2s; box-shadow:0 4px 18px rgba(255,45,77,.35);
}
.btn-done:hover{transform:translateY(-2px); box-shadow:0 8px 26px rgba(255,45,77,.5)}
.btn-done.is-done{background:linear-gradient(120deg,#1d8f56,#2fd07a); box-shadow:0 4px 18px rgba(47,208,122,.3)}

/* 上一章/下一章 */
.pager{display:flex; gap:12px; margin:34px 0 60px}
.pager a{
  flex:1; display:flex; flex-direction:column; padding:14px 18px; border:1px solid var(--line);
  border-radius:10px; background:var(--panel); transition:.2s; color:var(--txt);
}
.pager a:hover{border-color:var(--red); background:var(--panel2)}
.pager a .pl{font-size:11px; color:var(--faint); font-family:var(--mono); letter-spacing:1px}
.pager a .pt{font-size:14.5px; font-weight:700; margin-top:2px}
.pager a.next{text-align:right; align-items:flex-end}
.pager a.next:hover .pt{color:var(--red2)}

/* ---------- 交互热点（主板图） ---------- */
.hotwrap{display:grid; grid-template-columns:1fr 280px; gap:16px; align-items:start}
.hotlist{display:flex; flex-direction:column; gap:6px; max-height:560px; overflow:auto; padding-right:4px}
.hotbtn{
  text-align:left; background:var(--panel2); color:var(--txt); border:1px solid var(--line);
  border-radius:8px; padding:8px 12px; font-size:13px; cursor:pointer; transition:.15s; display:flex; gap:8px; align-items:center;
}
.hotbtn i{width:8px; height:8px; border-radius:50%; background:var(--red); flex:none; box-shadow:0 0 8px var(--red)}
.hotbtn:hover,.hotbtn.on{border-color:var(--red); background:var(--red-dim)}
.hotpanel{background:var(--panel2); border:1px solid var(--line-red); border-radius:10px; padding:16px; position:sticky; top:70px; min-height:150px}
.hotpanel h5{color:var(--cyan); font-size:15px; margin-bottom:6px}
.hotpanel p{font-size:13px; color:var(--muted); line-height:1.7}
.hotpanel .hp-ic{font-size:26px; margin-bottom:6px}
svg .hot{cursor:pointer}
svg .hot circle.dot{fill:var(--red); filter:drop-shadow(0 0 5px var(--red)); transition:.2s}
svg .hot circle.ring{fill:none; stroke:var(--red); opacity:.7; animation:hotpulse 2s infinite}
svg .hot:hover circle.dot,svg .hot.on circle.dot{fill:#fff}
svg .hot.on circle.ring{animation:none; stroke:var(--gold); opacity:1; stroke-width:2.5}
@keyframes hotpulse{0%{stroke-width:1.5; r:9; opacity:.9}70%{stroke-width:1; r:15; opacity:0}100%{opacity:0}}

/* ---------- 计算器 / 表单控件 ---------- */
.tool{background:linear-gradient(150deg,var(--panel2),var(--panel)); border:1px solid var(--line-red); border-radius:14px; padding:24px; margin:24px 0}
.tool h4{font-size:16px; color:#fff; margin-bottom:4px; display:flex; gap:8px; align-items:center}
.tool .tool-sub{font-size:12.5px; color:var(--muted); margin-bottom:16px}
.calc-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:14px; margin-bottom:16px}
.field label{display:block; font-size:12.5px; color:var(--muted); margin-bottom:5px; letter-spacing:.5px}
.field select,.field input{
  width:100%; background:var(--bg2); color:var(--txt); border:1px solid var(--line);
  border-radius:8px; padding:10px 12px; font-size:14px; font-family:inherit; transition:.15s;
}
.field select:focus,.field input:focus{outline:0; border-color:var(--red); box-shadow:0 0 0 3px rgba(255,45,77,.15)}
.calc-out{display:flex; align-items:center; gap:22px; flex-wrap:wrap; background:var(--bg2); border:1px dashed var(--line-red); border-radius:10px; padding:16px 20px}
.gauge{position:relative; width:150px; height:90px; flex:none}
.gauge svg{width:150px; height:90px}
.gauge .gv{position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:flex-end; padding-bottom:2px}
.gauge .gv b{font-family:var(--mono); font-size:26px; color:var(--gold); line-height:1; text-shadow:0 0 16px rgba(255,194,71,.5)}
.gauge .gv span{font-size:10px; color:var(--faint); letter-spacing:1px}
.calc-desc{flex:1; min-width:240px; font-size:13.5px; color:var(--muted); line-height:1.8}
.calc-desc .w{font-family:var(--mono); font-size:22px; color:var(--cyan); font-weight:700}
.calc-desc .tier{display:inline-block; margin-top:8px; background:var(--red-dim); border:1px solid var(--line-red); color:var(--red2); border-radius:6px; padding:2px 12px; font-size:13px; font-weight:700}

/* ---------- Quiz ---------- */
.quiz-q{background:var(--panel); border:1px solid var(--line); border-radius:12px; padding:20px; margin:14px 0}
.quiz-q .qq{font-weight:700; font-size:15px; margin-bottom:12px; display:flex; gap:10px}
.quiz-q .qq i{font-style:normal; font-family:var(--mono); color:var(--red); flex:none}
.qopts{display:grid; gap:8px}
.qopt{
  text-align:left; background:var(--bg2); border:1px solid var(--line); color:var(--muted);
  border-radius:8px; padding:10px 14px; font-size:13.5px; cursor:pointer; transition:.15s;
  display:flex; gap:10px; align-items:center;
}
.qopt i{font-style:normal; font-family:var(--mono); font-size:11px; color:var(--faint); border:1px solid var(--line); border-radius:4px; padding:0 6px; flex:none}
.qopt:hover{border-color:var(--cyan); color:#fff}
.qopt.right{border-color:var(--green); background:rgba(47,208,122,.1); color:#d9ffe9}
.qopt.right i{border-color:var(--green); color:var(--green)}
.qopt.wrong{border-color:var(--red); background:var(--red-dim); color:#ffb9c3}
.qopt.wrong i{border-color:var(--red); color:var(--red2)}
.qexp{margin-top:10px; font-size:12.5px; color:var(--gold); background:rgba(255,194,71,.07); border-left:3px solid var(--gold); padding:8px 12px; border-radius:0 8px 8px 0; display:none}
.quiz-score{
  text-align:center; padding:34px 20px; border:1px solid var(--line-red); border-radius:14px;
  background:radial-gradient(400px 200px at 50% 0%,rgba(255,45,77,.12),transparent),var(--panel); margin:26px 0;
}
.quiz-score .big{font-family:var(--mono); font-size:54px; font-weight:800; color:var(--gold); text-shadow:0 0 30px rgba(255,194,71,.45); line-height:1.1}
.quiz-score .rank{font-size:17px; font-weight:800; margin-top:6px; letter-spacing:2px}
.quiz-score .rmsg{color:var(--muted); font-size:13px; margin-top:6px}
.btn-redo{margin-top:14px; background:transparent; border:1px solid var(--red); color:var(--red2); border-radius:8px; padding:9px 24px; font-size:14px; cursor:pointer; font-weight:700; transition:.2s}
.btn-redo:hover{background:var(--red-dim)}

/* ---------- Hero（首页） ---------- */
.hero{position:relative; padding:64px 0 30px; overflow:hidden}
.hero .wrap{display:grid; grid-template-columns:1.05fr 1fr; gap:36px; align-items:center}
.hero .badge-line{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:16px}
.hero .badge{
  font-size:11px; font-family:var(--mono); letter-spacing:1px; padding:3px 10px;
  border:1px solid var(--line-red); color:var(--red2); border-radius:99px; background:var(--red-dim);
}
.hero .badge.cy{border-color:rgba(0,229,255,.4); color:var(--cyan); background:var(--cyan-dim)}
.hero .badge.gd{border-color:rgba(255,194,71,.4); color:var(--gold); background:rgba(255,194,71,.08)}
.hero h1{font-size:clamp(30px,4.6vw,50px); font-weight:900; line-height:1.22; letter-spacing:1px}
.hero h1 .hl{color:var(--red); text-shadow:0 0 34px rgba(255,45,77,.55)}
.hero .sub{color:var(--muted); margin:16px 0 22px; font-size:15px; max-width:560px}
.hero .cta{display:flex; gap:12px; flex-wrap:wrap}
.btn-main{
  display:inline-flex; align-items:center; gap:8px; background:linear-gradient(120deg,var(--red),#c11a3a);
  color:#fff; font-weight:800; padding:12px 30px; border-radius:9px; font-size:15px; letter-spacing:1px;
  transition:.2s; box-shadow:0 6px 24px rgba(255,45,77,.4);
}
.btn-main:hover{transform:translateY(-2px); box-shadow:0 10px 32px rgba(255,45,77,.55); color:#fff}
.btn-ghost{
  display:inline-flex; align-items:center; gap:8px; border:1px solid var(--line);
  color:var(--muted); padding:12px 24px; border-radius:9px; font-size:14px; transition:.2s;
}
.btn-ghost:hover{border-color:var(--cyan); color:var(--cyan)}
.hero-art{position:relative}
.hero-art svg{width:100%; filter:drop-shadow(0 20px 60px rgba(0,0,0,.6))}
.float{animation:floaty 5s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.glow-trace{stroke-dasharray:6 10; animation:dashmove 3s linear infinite}
@keyframes dashmove{to{stroke-dashoffset:-64}}
.led-blink{animation:ledblink 1.6s infinite}
@keyframes ledblink{0%,100%{opacity:1}50%{opacity:.25}}
.rgbwheel{animation:rgbspin 8s linear infinite; transform-origin:center}
@keyframes rgbspin{to{transform:rotate(360deg)}}

/* 总进度横幅 */
.master{margin:36px 0; padding:22px 26px; border-radius:14px; background:linear-gradient(120deg,var(--panel2),var(--panel)); border:1px solid var(--line); display:flex; align-items:center; gap:20px; flex-wrap:wrap}
.master .mtxt b{font-size:17px; color:#fff}
.master .mtxt p{font-size:12.5px; color:var(--muted)}
.master .big-bar{flex:1; min-width:260px; height:12px; border-radius:99px; background:rgba(255,255,255,.07); overflow:hidden; position:relative}
.master .big-bar i{display:block; height:100%; width:0; border-radius:99px; background:linear-gradient(90deg,var(--red),var(--gold),var(--green)); background-size:200% 100%; animation:barglide 3s linear infinite; transition:width .8s}
@keyframes barglide{to{background-position:-200% 0}}
.master .pct{font-family:var(--mono); font-size:26px; font-weight:800; color:var(--gold)}

/* 阶段分组 */
.stage-h{display:flex; align-items:center; gap:14px; margin:38px 0 6px}
.stage-h .sname{font-size:19px; font-weight:800; color:#fff; white-space:nowrap}
.stage-h .sdesc{font-size:12.5px; color:var(--faint)}
.stage-h .sline{flex:1; height:1px; background:linear-gradient(90deg,var(--line-red),transparent)}

/* ---------- 页脚 ---------- */
footer.site{
  margin-top:70px; border-top:1px solid var(--line); padding:30px 22px 40px; text-align:center;
  color:var(--faint); font-size:12px; line-height:2;
}
footer.site b{color:var(--muted)}
footer.site a{color:var(--faint)}
footer.site a:hover{color:var(--cyan)}
footer.site .flogo{display:inline-flex; align-items:center; gap:8px; margin-bottom:8px; color:var(--muted); font-weight:700}
footer.site .flogo svg{width:22px; height:22px}

/* 回顶 */
#to-top{
  position:fixed; right:22px; bottom:22px; width:42px; height:42px; border-radius:10px; z-index:90;
  background:var(--panel2); border:1px solid var(--line-red); color:var(--red2); font-size:17px;
  cursor:pointer; opacity:0; pointer-events:none; transition:.25s;
}
#to-top.show{opacity:1; pointer-events:auto}
#to-top:hover{background:var(--red-dim); transform:translateY(-3px)}

/* 滚动显现 */
.reveal{opacity:0; transform:translateY(22px); transition:opacity .6s,transform .6s}
.reveal.in{opacity:1; transform:none}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr}
  .hotwrap{grid-template-columns:1fr}
  .hotpanel{position:static}
  .topnav{display:none}
}
@media (max-width:640px){
  .topbar{padding:8px 12px; gap:8px}
  .prog-pill .mini{width:44px}
  .wrap{padding:0 14px}
  .page-head{padding-top:34px}
  .pager{flex-direction:column}
  .pager a.next{align-items:flex-start; text-align:left}
}