/* 中文注释：首页独立样式文件 */
:root{
  --bg:#070d17; --bg2:#0a1220; --panel:#0d1830; --panel2:#111f3c;
  --line:rgba(126,164,220,.14); --line2:rgba(126,164,220,.3);
  --txt:#dbe6f5; --dim:#8294ad; --faint:#5a6b84;
  --cyan:#38e1ff; --gold:#ffc24b; --green:#3ddc97; --red:#ff5d6c;
  --mono:'JetBrains Mono',ui-monospace,Consolas,monospace;
  --disp:'Space Grotesk','Noto Sans SC',sans-serif;
  --body:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:var(--body);overflow-x:hidden}
::selection{background:var(--gold);color:#081018}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#1c2c4a;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:#28406b}

/* ── 背景层 ── */
#bg{position:fixed;inset:0;z-index:0;pointer-events:none}
.grid-overlay{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:56px 56px;opacity:.35;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 100%)}
.glow{position:fixed;z-index:0;pointer-events:none;border-radius:50%;filter:blur(120px)}
.glow.g1{width:700px;height:700px;left:-200px;top:-200px;background:rgba(56,225,255,.07)}
.glow.g2{width:600px;height:600px;right:-150px;top:30%;background:rgba(255,194,75,.05)}
main,header,.ticker,footer{position:relative;z-index:1}

/* ── 顶部行情 Ticker ── */
.ticker{height:36px;background:#050a12;border-bottom:1px solid var(--line);display:flex;align-items:center;overflow:hidden}
.ticker-track{display:flex;white-space:nowrap;animation:tick 42s linear infinite;font-family:var(--mono);font-size:12px;color:var(--dim)}
.ticker-track span{padding:0 26px;border-right:1px solid var(--line)}
.ticker-track b{color:var(--green);font-weight:500}
.ticker-track i{color:var(--gold);font-style:normal}
@keyframes tick{to{transform:translateX(-50%)}}

/* ── 导航 ── */
header{position:sticky;top:0;height:66px;display:flex;align-items:center;justify-content:space-between;
  padding:0 48px;background:rgba(7,13,23,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:50}
.logo{display:flex;align-items:center;gap:12px;font-family:var(--disp);font-weight:700;font-size:18px;letter-spacing:.5px}
.logo svg{width:30px;height:30px}
.logo small{font-family:var(--mono);font-size:10px;color:var(--faint);letter-spacing:2px;display:block}
nav{display:flex;align-items:center;gap:24px}
nav a{color:var(--dim);text-decoration:none;font-size:14px;transition:color .25s;position:relative}
nav a::after{content:'';position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--cyan);transition:width .3s}
nav a:hover{color:var(--txt)} nav a:hover::after{width:100%}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 24px;font-size:14px;font-weight:700;font-family:var(--body);
  border:none;cursor:pointer;text-decoration:none;transition:all .25s;position:relative;overflow:hidden;border-radius:4px}
.btn-gold{background:var(--gold);color:#141005}
.btn-gold:hover{box-shadow:0 0 28px rgba(255,194,75,.45);transform:translateY(-2px)}
.btn-ai{gap:9px;padding:10px 18px;color:#dffaff;border:1px solid rgba(56,225,255,.6);background:linear-gradient(135deg,rgba(56,225,255,.18),rgba(16,80,127,.2));box-shadow:inset 0 0 18px rgba(56,225,255,.05),0 0 0 1px rgba(56,225,255,.05)}
.btn-ai:hover{color:#fff;border-color:var(--cyan);background:linear-gradient(135deg,rgba(56,225,255,.28),rgba(16,80,127,.3));box-shadow:0 0 28px rgba(56,225,255,.22);transform:translateY(-2px)}
.nav-code-icon{font-family:var(--mono);font-size:11px;color:var(--cyan);letter-spacing:-1px}
header nav a.btn-ai{max-width:none}
.btn-signal{padding:10px 18px;color:#dfffee;border:1px solid rgba(61,220,151,.55);background:rgba(20,86,62,.2);box-shadow:inset 0 0 18px rgba(61,220,151,.04)}
.btn-signal:hover{color:#fff;border-color:var(--green);background:rgba(20,86,62,.32);box-shadow:0 0 24px rgba(61,220,151,.16);transform:translateY(-2px)}
header nav a.btn-signal{max-width:none}
.btn-ghost{background:transparent;color:var(--cyan);border:1px solid rgba(56,225,255,.4)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(56,225,255,.08);transform:translateY(-2px)}
.btn::after{content:'';position:absolute;top:0;left:-80%;width:50%;height:100%;transform:skewX(-25deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);transition:left .5s}
.btn:hover::after{left:130%}

/* ── 通用 ── */
.wrap{max-width:1240px;margin:0 auto;padding:0 48px}
section{padding:110px 0}
.sec-head{display:flex;align-items:baseline;gap:18px;margin-bottom:56px}
.sec-idx{font-family:var(--mono);color:var(--gold);font-size:14px;letter-spacing:2px}
.sec-title{font-family:var(--disp);font-size:38px;font-weight:700;letter-spacing:1px}
.sec-en{font-family:var(--mono);font-size:11px;color:var(--faint);letter-spacing:3px;text-transform:uppercase}
.sec-line{flex:1;height:1px;background:linear-gradient(90deg,var(--line2),transparent)}
.panel{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:6px}
.panel.hud::before,.panel.hud::after{content:'';position:absolute;width:16px;height:16px;pointer-events:none}
.panel.hud::before{top:-1px;left:-1px;border-top:2px solid var(--cyan);border-left:2px solid var(--cyan)}
.panel.hud::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--gold);border-right:2px solid var(--gold)}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ── Hero ── */
.hero{min-height:calc(100vh - 102px);display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;padding:70px 0 90px}
.eyebrow{font-family:var(--mono);font-size:13px;color:var(--cyan);letter-spacing:2px;margin-bottom:26px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:'';width:34px;height:1px;background:var(--cyan)}
h1{font-family:var(--disp);font-size:clamp(44px,4.6vw,70px);font-weight:900;line-height:1.14;letter-spacing:1px;margin-bottom:28px}
h1 em{font-style:normal;color:var(--gold);text-shadow:0 0 34px rgba(255,194,75,.35)}
.hero p.lead{color:var(--dim);font-size:16px;line-height:1.9;max-width:520px;margin-bottom:38px}
.hero-btns{display:flex;gap:16px;margin-bottom:34px}
.hero-trust{font-family:var(--mono);font-size:13px;color:var(--faint)}
.hero-trust b{color:var(--green);font-weight:500}
.cursor-block{display:inline-block;width:8px;height:15px;background:var(--cyan);vertical-align:-2px;animation:blink 1s steps(1) infinite;margin-left:6px}
@keyframes blink{50%{opacity:0}}

/* 终端 */
.hero>*,.term-wrap,.term{min-width:0}
.term-wrap{position:relative}
.term{height:330px;display:flex;flex-direction:column;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.term-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--bg2)}
.dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.term-title{min-width:0;flex:1;margin-left:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:var(--mono);font-size:12px;color:var(--faint)}
.term-badge{margin-left:2px;flex:none;font-family:var(--mono);font-size:10px;color:var(--red);letter-spacing:2px;display:flex;align-items:center;gap:6px}
.term-badge::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--red);animation:blink 1.2s infinite}
.term-body{--activity-row-height:44px;position:relative;padding:0 22px;font-family:var(--mono);font-size:13px;line-height:1.3;flex:1;overflow:hidden}
.term-body::before,.term-body::after{content:'';position:absolute;z-index:3;left:0;right:0;height:24px;pointer-events:none}
.term-body::before{top:0;background:linear-gradient(to bottom,var(--panel),transparent)}
.term-body::after{bottom:0;background:linear-gradient(to top,var(--panel),transparent)}
.trial-activity-track{position:relative;z-index:1;transform:translateY(0);transition:transform .72s cubic-bezier(.22,.8,.3,1);will-change:transform}
.trial-activity-track.rolling{transform:translateY(calc(var(--activity-row-height) * -1))}
.trial-activity-row{height:var(--activity-row-height);display:grid;grid-template-columns:minmax(0,1fr) 74px 76px;align-items:center;gap:10px;border-bottom:1px solid rgba(159,182,212,.12);transition:background .3s,opacity .3s}
.trial-activity-row:last-child{border-bottom:0}.trial-activity-row code{color:var(--cyan);letter-spacing:.6px;overflow:hidden;text-overflow:ellipsis}
.trial-activity-row span{color:var(--faint);text-align:right;font-size:11px}.trial-activity-row b{color:var(--green);text-align:right;font-weight:500;font-size:11px}
.trial-activity-row.newest{background:linear-gradient(90deg,rgba(56,225,255,.09),transparent);box-shadow:inset 2px 0 0 rgba(56,225,255,.65)}
.trial-activity-empty{height:100%;display:flex;align-items:center;justify-content:center;color:var(--faint)}
@keyframes activityIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.tl{white-space:pre-wrap}
.tl.cmd{color:var(--cyan)} .tl.ok{color:#9fb6d4} .tl.ok b{color:var(--green)}
.tl.dim{color:var(--dim)} .tl.done{color:var(--gold);font-weight:700}
.chip{position:absolute;font-family:var(--mono);font-size:11px;padding:8px 14px;background:var(--panel2);
  z-index:6;border:1px solid var(--line2);border-radius:4px;color:var(--cyan);box-shadow:0 10px 30px rgba(0,0,0,.4);animation:float 5s ease-in-out infinite}
.chip.c1{top:-22px;right:36px;color:var(--green)}
.chip.c2{bottom:-48px;left:0;animation-delay:-2.5s}
.trial-entry{text-decoration:none;cursor:pointer;transition:border-color .2s,background .2s,color .2s,transform .2s}
.trial-entry:hover,.trial-entry:focus-visible{border-color:var(--green);background:rgba(61,220,151,.12);color:#a8ffd3;outline:none;transform:translateY(-2px)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ── 数据带 ── */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(13,24,48,.5)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:44px 30px;border-right:1px solid var(--line);transition:background .3s}
.stat:last-child{border-right:none}
.stat:hover{background:rgba(56,225,255,.04)}
.stat b{font-family:var(--disp);font-size:44px;font-weight:700;color:var(--gold);display:block;line-height:1}
.stat:nth-child(odd) b{color:var(--cyan)}
.stat span{font-size:13px;color:var(--dim);display:block;margin-top:12px;letter-spacing:1px}

/* ── 程序列表 ── */
#programs{padding-top:100px}
.program-intro{display:flex;align-items:flex-start;justify-content:space-between;gap:36px;margin-bottom:24px}
.program-intro-copy{min-width:0;max-width:760px}
.program-intro h2{font-family:var(--disp);font-size:38px;line-height:1.25;margin:16px 0 12px}
.program-intro p{color:var(--dim);font-size:14px}
.program-more-btn{flex:none;max-width:none;padding:11px 16px}
.program-more-btn b{min-width:25px;padding:3px 7px;border-radius:3px;background:rgba(56,225,255,.1);font-family:var(--mono);font-size:10px;color:var(--cyan);text-align:center}
.program-filter{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:0 0 24px;padding:12px 16px;border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:4px;background:rgba(13,24,48,.72);box-shadow:0 12px 30px rgba(0,0,0,.16)}
.program-filter-group{display:flex;align-items:center;gap:14px;min-width:0}
.program-filter-group>span{flex:none;color:var(--faint);font-family:var(--mono);font-size:10px;letter-spacing:1px;text-transform:uppercase}
.program-filter-options{display:flex;flex-wrap:wrap;gap:6px}
.program-filter-options button{min-height:30px;padding:5px 12px;border:1px solid var(--line);border-radius:3px;background:rgba(255,255,255,.025);color:var(--dim);font-family:var(--mono);font-size:11px;cursor:pointer;transition:color .2s,border-color .2s,background .2s,transform .2s}
.program-filter-options button:hover{color:var(--txt);border-color:var(--line2);background:rgba(56,225,255,.04);transform:translateY(-1px)}
.program-filter-options button.active{color:var(--gold);border-color:rgba(255,193,92,.55);background:rgba(255,193,92,.1);box-shadow:inset 0 0 0 1px rgba(255,193,92,.06);font-weight:700}
.platform-filter{justify-content:flex-end}
.program-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.program-card{padding:30px 28px;display:flex;flex-direction:column;min-height:255px;transition:transform .3s,border-color .3s,box-shadow .3s}
.program-card[hidden]{display:none}
.program-card:hover{transform:translateY(-7px);border-color:var(--line2);box-shadow:0 22px 50px rgba(0,0,0,.42)}
.program-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:18px}
.program-card-head h3{font-family:var(--disp);font-size:20px;line-height:1.35;overflow-wrap:anywhere}
.program-card-head span{flex:none;padding:5px 9px;border-radius:3px;background:rgba(255,255,255,.04);font-family:var(--mono);font-size:10px;color:var(--faint)}
.program-badges{display:flex;align-items:center;gap:8px;margin:-8px 0 14px;font-family:var(--mono);font-size:10px}
.program-badges span,.program-badges b{padding:4px 8px;border:1px solid var(--line);border-radius:3px;font-weight:500}
.program-badges span{color:var(--gold);background:rgba(255,193,92,.06)}
.program-badges b{color:var(--cyan);background:rgba(56,225,255,.06)}
.program-card>p{color:var(--dim);font-size:13px;line-height:1.8;flex:1}
.program-meta{display:flex;align-items:center;gap:18px;margin:18px 0;font-family:var(--mono);font-size:10px;color:var(--faint)}
.program-meta b{color:var(--green);font-weight:500}
.program-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.program-actions .btn{justify-content:center;width:100%}
.program-empty{grid-column:1/-1;padding:42px;text-align:center;color:var(--dim)}
.program-filter-empty{display:none;grid-column:1/-1;padding:38px;border:1px dashed var(--line2);color:var(--dim);text-align:center}
.program-more-row{display:flex;justify-content:flex-end;margin:0 0 12px}

/* ── 核心能力 Tabs ── */
.caps{display:grid;grid-template-columns:340px 1fr;gap:26px;align-items:stretch}
.cap-list{display:flex;flex-direction:column;gap:12px}
.cap-item{text-align:left;padding:22px 24px;background:var(--panel);border:1px solid var(--line);border-left:3px solid transparent;
  cursor:pointer;color:var(--dim);transition:all .3s;border-radius:4px;display:block}
.cap-item:hover{transform:translateX(6px);color:var(--txt)}
.cap-item.active{border-left-color:var(--gold);background:var(--panel2);color:var(--txt);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.cap-idx{font-family:var(--mono);font-size:12px;color:var(--gold);display:block;margin-bottom:6px}
.cap-name{font-size:17px;font-weight:700;display:block}
.cap-en{font-family:var(--mono);font-size:10px;letter-spacing:2px;color:var(--faint);text-transform:uppercase}
.cap-panel{padding:40px 44px;display:none;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center}
.cap-panel.active{display:grid;animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.cap-panel h3{font-family:var(--disp);font-size:26px;margin-bottom:16px}
.cap-panel p{color:var(--dim);font-size:14px;line-height:1.9;margin-bottom:22px}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tags span{font-family:var(--mono);font-size:11px;color:var(--cyan);border:1px solid rgba(56,225,255,.3);padding:5px 12px;border-radius:3px;transition:all .25s}
.tags span:hover{background:rgba(56,225,255,.1);transform:translateY(-2px)}
pre{background:#060b14;border:1px solid var(--line);border-radius:6px;padding:22px 24px;font-family:var(--mono);
  font-size:12.5px;line-height:1.9;overflow-x:auto;color:#a9bcd8}
pre .k{color:var(--cyan)} pre .s{color:var(--gold)} pre .c{color:var(--faint)} pre .f{color:var(--green)}

/* ── 加密试验台 ── */
.lab{padding:44px 48px}
.lab-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:30px}
.lab label{font-family:var(--mono);font-size:12px;color:var(--faint);letter-spacing:2px;display:block;margin-bottom:12px}
.lab input{width:100%;background:#060b14;border:1px solid var(--line2);color:var(--txt);font-family:var(--mono);
  font-size:14px;padding:16px 18px;border-radius:4px;outline:none;transition:all .3s}
.lab input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,225,255,.12)}
.modes{display:flex;gap:10px;margin-top:20px}
.mode{font-family:var(--mono);font-size:12px;padding:10px 18px;background:transparent;border:1px solid var(--line2);
  color:var(--dim);cursor:pointer;border-radius:4px;transition:all .25s}
.mode:hover{color:var(--txt);border-color:var(--dim)}
.mode.active{background:var(--cyan);color:#04121a;border-color:var(--cyan);font-weight:700;box-shadow:0 0 20px rgba(56,225,255,.35)}
.lab-out{background:#060b14;border:1px solid var(--line);border-radius:4px;padding:20px 22px;min-height:150px;
  font-family:var(--mono);font-size:13px;line-height:1.9;color:var(--green);word-break:break-all;position:relative}
.lab-out .ph{color:var(--faint)}
.license-result{display:flex;flex-direction:column;justify-content:center;gap:12px;min-height:180px}
.license-result.error{color:var(--red)}
.license-result.success{color:var(--txt)}
.license-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.license-row:last-child{padding-bottom:0;border-bottom:none}
.license-row span{color:var(--dim)}
.license-row b{color:var(--green);font-weight:500;text-align:right}
.lab-meta{display:flex;justify-content:space-between;margin-top:14px;font-family:var(--mono);font-size:11px;color:var(--faint)}
.copy-btn{background:none;border:1px solid var(--line2);color:var(--dim);font-family:var(--mono);font-size:11px;
  padding:5px 12px;border-radius:3px;cursor:pointer;transition:all .25s}
.copy-btn:hover{color:var(--gold);border-color:var(--gold)}

/* ── 流水线 ── */
.pipe{position:relative;padding:40px 0 10px}
.pipe-line{position:absolute;left:4%;right:4%;top:96px;height:2px;
  background:repeating-linear-gradient(90deg,var(--cyan) 0 10px,transparent 10px 20px);opacity:.35;
  animation:dashmove 1.2s linear infinite}
@keyframes dashmove{to{background-position:20px 0}}
.pipe-pulse{position:absolute;top:-4px;left:0;width:10px;height:10px;border-radius:50%;background:var(--gold);
  box-shadow:0 0 16px var(--gold);animation:pulse 5s linear infinite}
.pipe-pulse.p2{background:var(--cyan);box-shadow:0 0 16px var(--cyan);animation-delay:-2.5s}
@keyframes pulse{from{left:0}to{left:calc(100% - 10px)}}
.pipe-nodes{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.pipe-node{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:26px 20px;text-align:center;
  transition:all .3s;cursor:default}
.pipe-node:hover{transform:translateY(-8px);border-color:var(--cyan);box-shadow:0 18px 40px rgba(0,0,0,.45)}
.pipe-node i{font-style:normal;font-family:var(--mono);font-size:11px;color:var(--gold);display:block;margin-bottom:10px}
.pipe-node b{font-size:16px;display:block;margin-bottom:8px}
.pipe-node span{font-size:12px;color:var(--dim)}
.pipe-node .st{width:7px;height:7px;border-radius:50%;background:var(--green);display:inline-block;margin-right:6px;
  box-shadow:0 0 8px var(--green);animation:blink 2s infinite}

/* ── 合规跑马灯 ── */
.comp-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(13,24,48,.5);
  overflow:hidden;padding:26px 0}
.comp-track{display:flex;white-space:nowrap;animation:tick 30s linear infinite reverse;width:max-content}
.comp-track span{font-family:var(--disp);font-size:20px;font-weight:700;color:var(--faint);padding:0 40px;
  display:flex;align-items:center;gap:14px;transition:color .3s}
.comp-track span::after{content:'◆';font-size:10px;color:var(--gold)}
.comp-track span:hover{color:var(--cyan)}

/* ── 案例 Bento ── */
.cases{display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:1fr 1fr;gap:20px}
.case{padding:38px 40px;transition:all .35s;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}
.case:hover{transform:translateY(-6px);border-color:var(--line2);box-shadow:0 24px 60px rgba(0,0,0,.5)}
.case.big{grid-row:span 2;background:linear-gradient(160deg,var(--panel2),var(--panel))}
.case .tag{font-family:var(--mono);font-size:11px;color:var(--cyan);letter-spacing:2px;margin-bottom:18px}
.case h3{font-family:var(--disp);font-size:22px;margin-bottom:16px}
.case.big h3{font-size:30px}
.case q{color:var(--dim);font-size:14px;line-height:1.9;quotes:'「' '」'}
.case-metrics{display:flex;gap:34px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.case-metrics b{font-family:var(--disp);font-size:26px;color:var(--gold);display:block}
.case-metrics span{font-size:12px;color:var(--faint)}

/* ── CTA ── */
@property --a{syntax:'<angle>';initial-value:0deg;inherits:false}
.cta-box{position:relative;padding:80px 60px;text-align:left;border-radius:8px;overflow:hidden;
  background:radial-gradient(ellipse 52% 90% at 34% -8%,rgba(56,225,255,.78) 0%,rgba(56,225,255,.24) 38%,transparent 68%),radial-gradient(ellipse 35% 85% at 54% -10%,rgba(255,194,75,.82) 0%,rgba(255,194,75,.22) 42%,transparent 72%),var(--panel);
  display:grid;grid-template-columns:1.4fr 1fr;gap:50px;align-items:center}
.cta-box>*{position:relative;z-index:1}
.cta-box::before{content:'';position:absolute;inset:0;border-radius:8px;padding:1px;z-index:0;pointer-events:none;
  background:conic-gradient(from var(--a),#38e1ff 0deg,#45efbb 80deg,#ffc24b 150deg,#ff6b9b 220deg,#8a7dff 290deg,#38e1ff 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;
  animation:spin 5s linear infinite;filter:saturate(1.15)}
@keyframes spin{to{--a:360deg}}
.cta-box h2{font-family:var(--disp);font-size:42px;font-weight:900;line-height:1.25;margin-bottom:18px}
.cta-box h2 em{font-style:normal;color:var(--cyan)}
.cta-box p{color:var(--dim);line-height:1.9}
.cta-side{display:flex;flex-direction:column;gap:16px}
.contact-panel{background:rgba(6,11,20,.55);border:1px solid var(--line2);border-radius:8px;padding:32px}
.contact-panel h3{font-size:22px;font-weight:700;color:var(--txt);margin:0 0 24px}
.cta-field{width:100%;background:#060b14;border:1px solid var(--line2);color:var(--txt);font-family:var(--body);font-size:14px;padding:14px 16px;border-radius:4px;outline:none}
.cta-field:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,225,255,.12)}
.cta-result{display:none;padding:12px 14px;border:1px solid rgba(61,220,151,.35);border-radius:4px;color:var(--green);font-size:13px}
.cta-result.error{border-color:rgba(255,93,108,.4);color:var(--red)}
.cta-note{font-family:var(--mono);font-size:12px;color:var(--faint);text-align:center}
.contact-qq{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.contact-label{font-size:13px;color:var(--dim);min-width:56px}
.contact-value{font-size:18px;font-family:var(--mono);color:var(--cyan);text-decoration:none;transition:all .25s}
.contact-value:hover{color:#fff;text-shadow:0 0 12px var(--cyan)}
.contact-hint{font-size:12px;color:var(--faint);margin:0}
.trial-license-panel{max-width:520px}
.trial-program-name{margin:8px 0 20px;color:var(--dim);font-size:13px}
.trial-license-state{padding:22px 16px;border:1px dashed var(--line2);color:var(--dim);text-align:center}
.trial-code-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;margin-top:8px}
.trial-code-row input{min-width:0;background:#060b14;border:1px solid var(--line2);color:var(--gold);font-family:var(--mono);font-size:14px;padding:13px 14px;border-radius:4px;outline:none}
.trial-code-row .copy-btn{padding:10px 18px}
.trial-license-expire,.trial-license-help{margin:12px 0 0;color:var(--dim);font-size:12px;line-height:1.7}

/* ── Footer ── */
footer{border-top:1px solid var(--line);background:#050a12;padding:70px 0 36px}
.foot-grid{display:grid;grid-template-columns:minmax(260px,1.6fr) repeat(3,minmax(120px,1fr));gap:48px;margin-bottom:56px}
.foot-grid h4{font-size:14px;margin-bottom:20px;color:var(--txt)}
.foot-grid a{display:block;color:var(--dim);text-decoration:none;font-size:13px;margin-bottom:12px;transition:all .25s}
.foot-grid a:hover{color:var(--cyan);transform:translateX(4px)}
.foot-brand p{color:var(--dim);font-size:13px;line-height:1.9;margin-top:16px;max-width:300px}
.foot-contact{padding-top:4px}
.contact-qq{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.contact-label{font-size:13px;color:var(--dim);min-width:56px}
.contact-value{font-size:18px;font-family:var(--mono);color:var(--cyan);text-decoration:none;transition:all .25s}
.contact-value:hover{color:#fff;text-shadow:0 0 12px var(--cyan)}
.contact-hint{font-size:12px;color:var(--faint);margin:0}
.foot-bottom{border-top:1px solid var(--line);padding-top:28px;display:flex;justify-content:space-between;
  font-family:var(--mono);font-size:12px;color:var(--faint)}
.status{display:flex;align-items:center;gap:8px;color:var(--green)}
.status::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:blink 2s infinite}

/* 后台文案可编辑，但每个固定槽位仍需保持稳定尺寸。 */
header nav a,.btn,.mode,.tags span{white-space:nowrap}
header nav a{max-width:120px;overflow:hidden;text-overflow:ellipsis}
.btn,.mode{max-width:240px;overflow:hidden;text-overflow:ellipsis}
.stat span,.case .tag,.case-metrics span,.foot-grid h4,.foot-grid a{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero h1 span,.sec-title,.program-card h3,.cap-panel h3,.case h3,.cta-box h2{overflow-wrap:anywhere}
.hero p.lead,.program-intro-copy>p,.program-card>p,.cap-panel p,.case q,.cta-box p{
  display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden
}
.hero p.lead{min-height:92px;-webkit-line-clamp:3}
.program-intro-copy>p{min-height:48px;-webkit-line-clamp:2}
.program-card>p{-webkit-line-clamp:4}
.cap-panel h3,.case h3{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.case h3{white-space:pre-line}
.cap-panel p{-webkit-line-clamp:5}
.case q{-webkit-line-clamp:6}
.cta-box p{-webkit-line-clamp:4}
.cap-panel pre{max-height:360px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere}
.pipe-node b,.pipe-node>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
[data-content-overflow="1"]{outline:2px solid var(--red);outline-offset:4px}

@media(max-width:1360px){
  nav a:not(.btn){display:none}
}
@media(max-width:1080px){
  .hero{grid-template-columns:1fr}
  .program-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .caps{grid-template-columns:1fr}
  .cap-panel{grid-template-columns:1fr}
  .lab-grid,.cta-box{grid-template-columns:1fr}
  .cases{grid-template-columns:1fr}
  .case.big{grid-row:auto}
  .pipe-nodes{grid-template-columns:repeat(5,220px);overflow-x:auto}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 32px}
  .foot-brand{grid-column:1/-1}
}
@media(max-width:680px){
  header{height:62px;padding:0 14px;gap:8px}
  header .logo{gap:0}
  header .logo>div{display:none}
  nav{margin-left:auto;gap:8px}
  nav .nav-ea{display:none}
  nav .nav-ai{padding:9px 11px;font-size:11px}
  nav .nav-signal{padding:9px 11px;font-size:11px}
  .user-entry{gap:5px}
  .user-entry>.btn{padding:9px 10px;font-size:12px}
  .user-email{max-width:92px}
  .program-grid{grid-template-columns:1fr}
  .program-intro{flex-direction:column;gap:20px}
  .program-filter{align-items:stretch;flex-direction:column;gap:12px}
  .program-filter-group,.platform-filter{align-items:flex-start;justify-content:flex-start;flex-direction:column;gap:8px}
  .program-intro h2{font-size:30px}
  .program-more-row{margin-bottom:10px}
  .program-card{padding:24px 20px;min-height:0}
  .program-actions{grid-template-columns:1fr}
  .cta-box{padding:48px 24px}
  footer{padding:52px 0 30px}
  .foot-bottom{gap:16px;flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  header .user-email{display:none}
  header .user-menu-toggle{padding:6px}
  .nav-ai{width:42px;height:40px;padding:0!important;justify-content:center}
  .nav-signal{width:42px;height:40px;padding:0!important;justify-content:center;font-size:0!important}
  .nav-signal::before{content:'EA';font-family:var(--mono);font-size:11px;color:var(--green)}
  .nav-ai-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  .nav-code-icon{font-size:12px}
  .term-bar{display:grid;grid-template-columns:auto auto auto minmax(0,1fr) auto;gap:7px;padding:10px 12px}
  .term-bar .dot.r{grid-column:1}.term-bar .dot.y{grid-column:2}.term-bar .dot.g{grid-column:3}
  .term-title{grid-column:4;margin-left:3px}
  .term-badge{grid-column:5;margin-left:0}
  .foot-grid{grid-template-columns:1fr;gap:28px;margin-bottom:40px}
  .foot-brand{grid-column:auto}
}

/* ── 中文注释：用户入口与登录/注册/兑换码弹窗样式（Task 4.1） ── */
/* 用户入口 */
.user-entry{display:flex;align-items:center;gap:10px}
.user-menu{position:relative}
.user-menu-toggle{display:flex;align-items:center;gap:10px;background:transparent;border:1px solid var(--line2);color:var(--txt);padding:8px 14px;border-radius:6px;cursor:pointer;transition:all .25s}
.user-menu-toggle:hover{border-color:var(--cyan)}
.user-menu-copy{display:grid;gap:2px;min-width:0;text-align:left}.user-menu-copy small{color:var(--dim);font:10px var(--mono);letter-spacing:.3px}.user-email{display:block;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-avatar{width:28px;height:28px;border-radius:50%;background:var(--cyan);display:flex;align-items:center;justify-content:center;color:#04121a;font-weight:700;font-size:12px}
.user-dropdown{display:none;position:absolute;right:0;top:calc(100% + 8px);background:#0c1828;border:1px solid #294761;border-radius:8px;padding:8px 0;min-width:238px;box-shadow:0 18px 48px rgba(0,0,0,.5);z-index:100}
.user-dropdown.open{display:block}
.user-dropdown a,.user-dropdown button{display:block;width:100%;text-align:left;padding:10px 18px;color:var(--dim);background:transparent;border:none;font-size:14px;cursor:pointer;transition:all .2s}
.user-dropdown a:hover,.user-dropdown button:hover{color:var(--cyan);background:rgba(56,225,255,.06)}
.user-dropdown-identity{display:flex;align-items:center;gap:10px;margin:2px 10px 8px;padding:10px 8px;border-bottom:1px solid var(--line)}.user-dropdown-identity > div{display:grid;gap:3px;min-width:0}.user-dropdown-identity b{max-width:174px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--txt);font-size:12px}.user-dropdown-identity small{color:var(--dim);font:10px var(--mono)}.user-dropdown-divider{height:1px;margin:6px 10px;background:var(--line)}.user-dropdown .user-logout{color:#f18c8c}.user-dropdown .user-logout:hover{color:#ffb0b0;background:rgba(255,100,100,.07)}
.user-balance{padding:10px 18px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12px;color:var(--gold)}

/* Modal 弹窗 */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center}
.modal.open{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(4px)}
.modal-panel{position:relative;background:var(--panel);border:1px solid var(--line2);border-radius:8px;padding:34px;width:100%;max-width:440px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.modal-close{position:absolute;top:14px;right:18px;background:transparent;border:none;color:var(--dim);font-size:24px;cursor:pointer}
.modal-close:hover{color:var(--txt)}
.program-download-panel{width:calc(100% - 24px);max-width:420px;padding:34px 34px 30px;text-align:center}
.program-download-panel h3{margin:18px 0 8px;font-family:var(--disp);font-size:24px;letter-spacing:0}
.program-download-panel>p{min-height:42px;margin:0;color:var(--dim);font-size:13px;line-height:1.65}
.program-download-icon{display:grid;place-items:center;width:50px;height:50px;margin:0 auto;border:1px solid rgba(56,225,255,.35);border-radius:50%;background:rgba(56,225,255,.07)}
.program-download-icon span{width:18px;height:18px;border:2px solid rgba(56,225,255,.25);border-top-color:var(--cyan);border-radius:50%;animation:program-download-spin .8s linear infinite}
.program-download-icon.success{border-color:rgba(98,214,138,.45);background:rgba(98,214,138,.08)}
.program-download-icon.success span{width:18px;height:10px;border:0;border-left:2px solid #62d68a;border-bottom:2px solid #62d68a;border-radius:0;animation:none;transform:rotate(-45deg) translate(2px,-2px)}
.program-download-icon.error{border-color:rgba(255,107,107,.45);background:rgba(255,107,107,.08)}
.program-download-icon.error span{position:relative;width:18px;height:18px;border:0;animation:none}
.program-download-icon.error span::before,.program-download-icon.error span::after{content:"";position:absolute;top:8px;left:1px;width:16px;height:2px;background:#ff6b6b}
.program-download-icon.error span::before{transform:rotate(45deg)}
.program-download-icon.error span::after{transform:rotate(-45deg)}
.program-download-progress{height:8px;margin-top:22px;overflow:hidden;border:1px solid var(--line2);border-radius:4px;background:rgba(255,255,255,.035)}
.program-download-progress span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--cyan),var(--gold));transition:width .45s ease}
.program-download-progress-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:9px;color:var(--dim);font-family:var(--mono);font-size:11px}
.program-download-progress-meta strong{color:var(--txt);font-weight:600}
.program-download-retry{width:100%;justify-content:center;margin-top:22px}
@keyframes program-download-spin{to{transform:rotate(360deg)}}
.program-catalog-panel{display:flex;flex-direction:column;width:min(1180px,calc(100vw - 48px));max-width:none;max-height:calc(100dvh - 48px);padding:30px;overflow:hidden}
.program-catalog-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;padding:2px 46px 24px 2px;border-bottom:1px solid var(--line)}
.program-catalog-head .eyebrow{margin-bottom:12px}
.program-catalog-head h3{font-family:var(--disp);font-size:28px;line-height:1.25}
.program-catalog-head>p{max-width:380px;color:var(--dim);font-size:13px;line-height:1.7;text-align:right}
.program-catalog-scroll{min-height:0;margin-top:22px;padding-right:6px;overflow-y:auto;overscroll-behavior:contain}
.program-catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.program-catalog-card{min-height:250px;padding:24px 22px}
.program-catalog-empty{grid-column:1/-1;padding:54px 24px;border:1px dashed var(--line2);color:var(--dim);text-align:center}
@media(max-width:1080px){
  .program-catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:680px){
  .program-catalog-panel{width:calc(100vw - 24px);max-height:calc(100dvh - 24px);padding:26px 18px 18px}
  .program-catalog-head{align-items:flex-start;flex-direction:column;gap:10px;padding-right:34px}
  .program-catalog-head>p{max-width:none;text-align:left}
  .program-catalog-grid{grid-template-columns:1fr}
}
.auth-tabs{display:flex;gap:18px;margin-bottom:24px;border-bottom:1px solid var(--line)}
.auth-tab{background:transparent;border:none;color:var(--dim);font-size:17px;padding-bottom:12px;cursor:pointer;position:relative}
.auth-tab.active{color:var(--cyan)}
.auth-tab.active::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--cyan)}
.auth-form{display:none}
.auth-form.active{display:block}
.auth-form label{display:block;font-size:12px;color:var(--faint);margin-bottom:8px;margin-top:18px}
.auth-form input{width:100%;background:#060b14;border:1px solid var(--line2);color:var(--txt);padding:13px 15px;border-radius:4px;outline:none;font-size:14px}
.auth-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,225,255,.12)}
.code-row{display:flex;gap:12px;margin-top:10px}
.code-row input{flex:1}
.code-row .btn{white-space:nowrap;min-width:120px;justify-content:center}
.captcha-row{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:12px;align-items:stretch;margin-top:10px}
.captcha-row input[type="text"]{width:100%;min-width:0;height:48px;text-transform:uppercase;letter-spacing:0}
.captcha-row input[type="hidden"]{display:none}
.captcha-image{width:150px;height:48px;min-width:150px;padding:0;border:1px solid var(--line2);border-radius:4px;background:#07101f;cursor:pointer;overflow:hidden}
.captcha-image:hover{border-color:var(--cyan)}
.captcha-image-content{display:block;width:150px;height:48px;object-fit:cover}
.auth-form .btn[type="submit"]{margin-top:24px}
.auth-link{display:block;margin:12px 0 0 auto;padding:0;border:0;background:transparent;color:var(--muted);font-size:12px;line-height:24px;cursor:pointer}
.auth-link:hover,.auth-link:focus-visible{color:var(--cyan);outline:0;text-decoration:underline}
.auth-link{display:block;margin:12px 0 0 auto;padding:0;border:0;background:transparent;color:var(--cyan);font-size:12px;cursor:pointer}
.auth-link:hover{text-decoration:underline}.auth-link.back-link{margin:0 0 12px 0}
.auth-result{margin-top:12px;font-size:13px;display:none;padding:10px 12px;border-radius:4px}
.auth-result.show{display:block}
.auth-result.success{color:var(--green);border:1px solid rgba(61,220,151,.35)}
.auth-result.error{color:var(--red);border:1px solid rgba(255,93,108,.4)}

/* 兑换码输入 */
.redeem-form{display:flex;flex-direction:column;gap:10px}
.redeem-form label{font-size:12px;color:var(--faint)}
.redeem-code-input{width:100%;height:48px;background:#060b14;border:1px solid var(--line2);border-radius:4px;color:var(--txt);padding:0 15px;font-family:var(--mono);font-size:14px;letter-spacing:0;outline:none;text-transform:uppercase}
.redeem-code-input::placeholder{color:var(--faint);text-transform:none}
.redeem-code-input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,225,255,.12)}
.redeem-form .btn{width:100%;justify-content:center;margin-top:2px}
.password-fields{display:grid;gap:13px}
.password-fields label{font-size:12px;color:var(--faint)}
.password-fields input{display:block;width:100%;margin-top:7px;background:#060b14;border:1px solid var(--line2);color:var(--txt);padding:13px 15px;border-radius:4px;outline:none}
.password-fields input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,225,255,.12)}