/* 三辰软件官网 V2.1（11-07）· 深空蓝紫：按「网页设计参考」改版。深蓝底、淡紫强调、星球弧光首屏、界面框展示真实样片。 */
@font-face{font-family:"Inter Tight";src:url(../fonts/inter-tight.woff2) format("woff2");font-weight:100 900;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F,U+20AC,U+2122}
:root{
 --bg:#0a0a14;--bg-2:#11121f;--bg-3:#181a2b;--card:#121424;--line:#232538;--line-2:#33364d;
 --fg:#f3f2fa;--fg-2:#b5b4c8;--fg-3:#83829a;--accent:#b9a8ff;--accent-2:#d9d0ff;--glow:#8f7bff;--danger:#ff8a7a;--ok:#8fd19e;
 --font:"Inter Tight","PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
 --wrap:1312px;--gut:clamp(20px,4vw,48px);--r:14px;--r-sm:10px;--ease:cubic-bezier(.16,1,.3,1)}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;color-scheme:dark;scrollbar-color:var(--line-2) var(--bg)}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.7 var(--font);-webkit-font-smoothing:antialiased}
::selection{background:var(--accent);color:#0f0c24}
::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:10px;border:2px solid var(--bg)}
img,video,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none;text-underline-offset:.22em}
p a,.prose a,.note a{text-decoration:underline;text-decoration-color:var(--line-2)}p a:hover,.prose a:hover,.note a:hover{text-decoration-color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.15;text-wrap:balance}
p{margin:0;text-wrap:pretty}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:99;background:var(--fg);color:var(--bg);padding:8px 14px;border-radius:8px}
/* 顶栏：品牌左、导航居中、在线修图右 */
.top{position:sticky;top:0;z-index:50;background:rgba(10,10,20,.78);backdrop-filter:saturate(1.3) blur(16px);-webkit-backdrop-filter:saturate(1.3) blur(16px);border-bottom:1px solid var(--line)}
.top .wrap{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;max-width:1440px}
.top .wrap.app-bar{display:flex;gap:28px;max-width:var(--wrap)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:.02em;justify-self:start}.brand img{width:30px;height:30px}
.nav{display:flex;gap:44px;font-size:15px;color:var(--fg-2)}
.nav a{position:relative;padding:24px 0;transition:color .2s}.nav a:hover,.nav a[aria-current=page]{color:var(--fg)}
.nav a[aria-current=page]::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;background:var(--accent)}
.nav-cta{justify-self:end}
.menu-btn{display:none;justify-self:end;background:none;border:0;color:var(--fg);padding:8px;cursor:pointer}
@media (max-width:900px){
 .top .wrap{grid-template-columns:1fr auto;height:64px}
 .nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;gap:0;padding:8px var(--gut) 20px;background:var(--bg);border-bottom:1px solid var(--line);transform:translateY(-8px);opacity:0;pointer-events:none;transition:.25s var(--ease)}
 .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:17px}.nav a[aria-current=page]::after{display:none}
 .top.open .nav{opacity:1;transform:none;pointer-events:auto}.top .menu-btn{display:block}.top .nav-cta{display:none}}
/* 按钮：胶囊形；主按钮淡紫渐变，次按钮描边 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 24px;border-radius:999px;border:1px solid var(--line-2);background:rgba(255,255,255,.02);color:var(--fg);font:600 15px/1 var(--font);cursor:pointer;transition:background .2s,border-color .2s,color .2s,box-shadow .3s,transform .2s var(--ease);white-space:nowrap}
.btn:hover{border-color:var(--fg-3);background:rgba(255,255,255,.05)}
.btn:active{transform:scale(.98)}
.btn.primary,.btn.gold{background:linear-gradient(135deg,#e9e4ff,#c3b6ff);color:#16123a;border-color:transparent;box-shadow:0 8px 28px -10px rgba(185,168,255,.65)}
.btn.primary:hover,.btn.gold:hover{background:linear-gradient(135deg,#f3f0ff,#d2c7ff);box-shadow:0 10px 34px -10px rgba(185,168,255,.85)}
.btn.sm{height:38px;padding:0 16px;font-size:14px}
.btn.outline{background:transparent}
.btn[disabled],.btn.is-busy{opacity:.45;pointer-events:none}
.btn svg{width:16px;height:16px}
.btn .arr{font-weight:400;font-size:18px;line-height:1;transition:transform .25s var(--ease)}.btn:hover .arr{transform:translateX(3px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--fg);font-weight:600}.link-arrow svg{width:16px;transition:transform .25s var(--ease)}.link-arrow:hover svg{transform:translateX(3px)}
/* 眉标：短横线 + 英文小字 */
.eyebrow{display:flex;align-items:center;gap:14px;font-size:13px;letter-spacing:.24em;text-transform:uppercase;color:var(--fg-2);font-weight:500}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--accent)}
.eyebrow.bare::before{display:none}
.kicker{font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--fg-3);font-weight:500}
/* 首屏：星球弧光（纯 CSS，不需要图片） */
.hero{position:relative;min-height:min(78vh,760px);display:flex;align-items:center;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line);
 background:radial-gradient(120% 90% at 85% 0%,#1a1838 0%,transparent 60%),var(--bg)}
.planet{position:absolute;z-index:-1;pointer-events:none;width:4600px;height:4600px;left:calc(120% - 2300px);top:36%;border-radius:50%;
 background:radial-gradient(circle at 50% 50%,#07071a 0,#0b0a22 49.4%,transparent 50%);
 box-shadow:inset 0 2px 0 0 rgba(225,218,255,.9),inset 0 10px 30px -6px rgba(175,155,255,.6),inset 0 60px 120px -40px rgba(120,100,240,.35)}
.planet::before{content:"";position:absolute;left:31%;top:.6%;width:12%;height:1.6%;border-radius:50%;background:radial-gradient(closest-side,rgba(240,236,255,.95),rgba(170,150,255,.45) 45%,transparent 78%);filter:blur(14px);transform:rotate(-17deg)}
.planet::after{content:"";position:absolute;left:18%;top:-2.2%;width:64%;height:9%;border-radius:50%;background:radial-gradient(closest-side,rgba(143,123,255,.32),rgba(120,100,240,.12) 55%,transparent);z-index:-1}
.hero .wrap{position:relative;padding-top:clamp(64px,10vh,120px);padding-bottom:clamp(72px,12vh,140px)}
.hero h1{margin-top:28px;font-size:clamp(46px,6.4vw,92px);letter-spacing:-.03em;line-height:1.08;font-weight:600;max-width:11ch}
.hero p.lead{margin-top:26px;max-width:30em;font-size:clamp(16px,1.35vw,18px);color:var(--fg-2);line-height:1.85}
.hero .actions{margin-top:38px;display:flex;flex-wrap:wrap;gap:14px}
.hero .meta{margin-top:24px;font-size:13px;color:var(--fg-3)}
.scroll-cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:grid;justify-items:center;gap:10px;font-size:11px;letter-spacing:.3em;color:var(--fg-3)}
.scroll-cue i{width:20px;height:32px;border:1.5px solid var(--fg-2);border-radius:12px;position:relative}
.scroll-cue i::after{content:"";position:absolute;left:50%;top:7px;width:2px;height:7px;margin-left:-1px;border-radius:2px;background:var(--fg);animation:cue 1.8s var(--ease) infinite}
@keyframes cue{0%{opacity:0;transform:translateY(-2px)}40%{opacity:1}100%{opacity:0;transform:translateY(8px)}}
@media (max-width:760px){.planet{left:calc(140% - 2300px);top:78%}.scroll-cue{display:none}}
/* 产品首屏：左文字、右界面框 */
.split-hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line);background:radial-gradient(60% 70% at 85% 30%,rgba(110,90,220,.16),transparent 70%)}
.split-hero .wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(32px,5vw,80px);align-items:center;padding-top:clamp(56px,8vh,96px);padding-bottom:clamp(56px,8vh,96px)}
.split-hero h1{margin-top:26px;font-size:clamp(40px,4.6vw,66px);letter-spacing:-.025em;line-height:1.12}
.split-hero p.lead{margin-top:22px;color:var(--fg-2);font-size:17px;max-width:32em;line-height:1.85}
.split-hero .actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.split-hero .meta{margin-top:20px;font-size:13px;color:var(--fg-3)}
@media (max-width:960px){.split-hero .wrap{grid-template-columns:1fr}}
/* 界面框：标题栏三个点，里面放真实样片 */
.window{position:relative;border:1px solid var(--line-2);border-radius:16px;background:linear-gradient(180deg,#171a2c,#0f1120);box-shadow:0 40px 90px -30px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.02) inset,0 0 120px -40px rgba(143,123,255,.35);overflow:hidden}
.window .bar-top{height:36px;display:flex;align-items:center;gap:6px;padding:0 14px;border-bottom:1px solid var(--line)}
.window .bar-top i{width:7px;height:7px;border-radius:50%;background:#5c5e78}
.window .body{display:grid;grid-template-columns:56px 1fr 120px;min-height:0}
.window .rail,.window .panel{display:grid;align-content:start;gap:16px;padding:28px 14px}
.window .rail span,.window .panel span{display:block;height:4px;border-radius:4px;background:#3a3d57}
.window .panel span:nth-child(2),.window .panel span:nth-child(4){background:var(--accent);opacity:.75;width:70%}
.window .stage{position:relative;background:#0b0c17}
.window .stage>img{width:100%;height:100%;object-fit:cover}
.window .compare{border-radius:0;height:100%}
.tilt{transform:perspective(1600px) rotateY(-8deg) rotateX(2deg);transition:transform 1s var(--ease)}.tilt:hover{transform:perspective(1600px) rotateY(-3deg)}
@media (max-width:960px){.tilt{transform:none}.window .body{grid-template-columns:1fr}.window .rail,.window .panel{display:none}}
/* 页面标题 */
.page-head{position:relative;overflow:hidden;padding:clamp(64px,10vh,120px) 0 clamp(40px,6vh,64px);background:radial-gradient(45% 60% at 82% 0%,rgba(110,90,220,.14),transparent 70%)}
.page-head h1{margin-top:28px;font-size:clamp(38px,4.8vw,64px);letter-spacing:-.025em}
.page-head p{margin-top:18px;max-width:44em;color:var(--fg-2);font-size:17px;line-height:1.85}
/* 区块 */
.sec{padding:clamp(64px,10vh,120px) 0}
.sec+.sec{padding-top:0}
.sec.line{border-top:1px solid var(--line);padding-top:clamp(64px,10vh,120px)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px 64px;align-items:end;margin-bottom:clamp(32px,5vh,48px)}
.sec-head h2{font-size:clamp(28px,3vw,40px);letter-spacing:-.02em}
.sec-head .kicker+h2{margin-top:10px}
.sec-head>p{color:var(--fg-2);max-width:36em;justify-self:end}
.sec-head.left>p{justify-self:start}
@media (max-width:860px){.sec-head{grid-template-columns:1fr}.sec-head>p{justify-self:start}}
.rule{border:0;border-top:1px solid var(--line);margin:0}
/* 首页三格入口 */
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-bottom:1px solid var(--line);background:var(--bg-2)}
.tile{position:relative;display:block;padding:clamp(36px,5vh,56px) clamp(24px,3vw,48px) clamp(40px,6vh,72px);transition:background .3s}
.tile+.tile{border-left:1px solid var(--line)}
.tile:hover{background:rgba(185,168,255,.04)}
.tile .kicker{display:block}
.tile h3{margin-top:14px;font-size:22px}
.tile p{margin-top:12px;color:var(--fg-2);font-size:15px}
.tile .go{position:absolute;right:clamp(24px,3vw,48px);top:clamp(36px,5vh,56px);width:22px;color:var(--fg-2);transition:transform .3s var(--ease),color .2s}
.tile:hover .go{transform:translate(3px,-3px);color:var(--accent)}
.tiles-inner{max-width:var(--wrap);margin:0 auto;display:contents}
@media (max-width:860px){.tiles{grid-template-columns:1fr}.tile+.tile{border-left:0;border-top:1px solid var(--line)}}
/* 卡片 */
.card{position:relative;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,#14162a,#101222);overflow:hidden;transition:border-color .3s,transform .4s var(--ease),box-shadow .4s}
a.card:hover{border-color:var(--line-2);transform:translateY(-3px);box-shadow:0 30px 60px -30px rgba(0,0,0,.7),0 0 80px -40px rgba(143,123,255,.45)}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cards.two{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:960px){.cards,.cards.two{grid-template-columns:1fr}}
.pcard{display:flex;flex-direction:column}
.pcard .media{position:relative;aspect-ratio:16/9.4;overflow:hidden;background:radial-gradient(70% 90% at 50% 0%,rgba(110,90,220,.2),transparent 70%),#0f1020;display:grid;place-items:center;padding:7% 9% 0}
.pcard .media .window{width:100%;align-self:end;border-bottom-left-radius:0;border-bottom-right-radius:0;border-bottom:0}
.pcard .media .window .body{grid-template-columns:30px 1fr 64px}.pcard .media .window .rail,.pcard .media .window .panel{gap:10px;padding:16px 8px}
.pcard .media .window .stage{aspect-ratio:16/10}
.pcard .media img.shot{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
a.pcard:hover .media .stage img{transform:scale(1.03)}
.pcard .media .stage img{transition:transform 1.2s var(--ease)}
.pcard .info{padding:24px 28px 28px;display:flex;flex-direction:column;flex:1}
.pill{display:inline-flex;align-items:center;align-self:flex-start;height:28px;padding:0 12px;border:1px solid var(--line-2);border-radius:999px;font-size:12px;color:var(--fg-2);font-weight:500;white-space:nowrap}
.pill.solid{background:#2a2b45;border-color:transparent;color:var(--fg);font-weight:600;font-size:13px;letter-spacing:0}
.pcard h3{margin-top:18px;font-size:24px}
.pcard p{margin-top:10px;color:var(--fg-2);font-size:15px}
.pcard .foot-row{margin-top:auto;padding-top:22px;display:flex;align-items:center;justify-content:space-between;color:var(--fg-3);font-size:13px}
.pcard .foot-row svg{width:20px;color:var(--fg-2);transition:transform .3s var(--ease)}a.pcard:hover .foot-row svg{transform:translate(3px,-3px);color:var(--accent)}
.plus{width:84px;height:84px;border:1px dashed var(--line-2);border-radius:20px;display:grid;place-items:center;transform:rotate(12deg);color:var(--fg-2);margin-bottom:7%}
.plus svg{width:28px;transform:rotate(-12deg)}
/* 小卡片（编号 + 标题 + 一句话） */
.mini{padding:28px 30px 30px}
.mini .num{font-size:13px;color:var(--accent);letter-spacing:.04em}
.mini h3{margin-top:14px;font-size:19px}
.mini p{margin-top:10px;color:var(--fg-2);font-size:15px}
/* 价值观三栏 */
.values{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));background:var(--bg-2);border-block:1px solid var(--line)}
.values>div{padding:clamp(32px,5vh,48px) clamp(24px,3vw,48px)}
.values>div:first-child{padding-left:max(var(--gut),calc((100vw - var(--wrap))/2 + var(--gut)))}.values>div+div{border-left:1px solid var(--line)}
.values h3{font-size:18px}.values p{margin-top:10px;color:var(--fg-2);font-size:15px}
@media (max-width:860px){.values{grid-template-columns:1fr}.values>div+div{border-left:0;border-top:1px solid var(--line)}}
/* 产品大幅（图文并排） */
.feature{position:relative;display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(28px,4vw,64px);align-items:center;padding:clamp(28px,4vw,40px)}
.feature.flip{grid-template-columns:1fr 1.25fr}.feature.flip .feature-media{order:2}
.feature-media{position:relative;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-3);aspect-ratio:3/2}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
a.feature:hover .feature-media img{transform:scale(1.025)}
.feature h3{font-size:clamp(26px,2.6vw,36px)}
.feature .sub{margin-top:8px;color:var(--fg-3);font-size:14px}
.feature p.desc{margin-top:16px;color:var(--fg-2)}
.feature .actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
@media (max-width:860px){.feature,.feature.flip{grid-template-columns:1fr}.feature.flip .feature-media{order:0}}
/* 规格列表：细线分隔的行 */
.rows{border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:minmax(160px,1fr) 2.2fr;gap:12px 48px;padding:24px 0;border-bottom:1px solid var(--line)}
.row h3{font-size:18px}.row p,.row li{color:var(--fg-2)}
.row ul{margin:0;padding:0;list-style:none;display:grid;gap:6px}.row li{padding-left:18px;position:relative}
.row li::before{content:"";position:absolute;left:0;top:.8em;width:8px;height:1px;background:var(--accent)}
@media (max-width:700px){.row{grid-template-columns:1fr}}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:0;padding:0}
.steps li{list-style:none;counter-increment:s;border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:26px 28px 28px}
.steps li::before{content:"0" counter(s) " / STEP";display:block;font-size:13px;color:var(--accent);margin-bottom:14px;letter-spacing:.04em}
.steps h3{font-size:19px}.steps p{margin-top:8px;color:var(--fg-2);font-size:15px}
@media (max-width:860px){.steps{grid-template-columns:1fr 1fr}}@media (max-width:560px){.steps{grid-template-columns:1fr}}
/* 前后对比 */
.compare{position:relative;aspect-ratio:3/2;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-3);cursor:ew-resize;user-select:none;touch-action:pan-y;--pos:50%}
.compare img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.compare .after{clip-path:inset(0 0 0 var(--pos))}
.compare .bar{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;margin-left:-1px;background:linear-gradient(180deg,transparent,#fff 12%,#fff 88%,transparent);box-shadow:0 0 18px rgba(200,190,255,.9);pointer-events:none}
.compare .knob{position:absolute;top:50%;left:var(--pos);width:42px;height:42px;margin:-21px 0 0 -21px;border-radius:50%;background:rgba(10,10,20,.55);border:1px solid rgba(255,255,255,.85);backdrop-filter:blur(6px);display:grid;place-items:center;pointer-events:none}
.compare .knob svg{width:18px;color:#fff}
.compare .tag{position:absolute;bottom:14px;padding:4px 12px;border-radius:999px;background:rgba(10,10,20,.62);font-size:12px;color:var(--fg-2);pointer-events:none}
.compare .tag.l{left:14px}.compare .tag.r{right:14px}
.compare input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tabs button{height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line-2);background:none;color:var(--fg-2);font:500 14px var(--font);cursor:pointer;transition:.2s}
.tabs button:hover{color:var(--fg)}.tabs button[aria-selected=true]{background:linear-gradient(135deg,#e9e4ff,#c3b6ff);color:#16123a;border-color:transparent;font-weight:600}
[hidden]{display:none!important}
.cmp-card{padding:clamp(20px,3vw,36px)}
.cmp-stage{display:flex;justify-content:center}
.cmp-stage .compare{aspect-ratio:var(--ratio,1.5);width:min(100%,calc(74vh * var(--ratio,1.5)));max-height:74vh}
.chips-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.chip{height:32px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--bg-3);color:var(--fg-2);font:500 13px var(--font);cursor:pointer;transition:.15s}
.chip:hover{color:var(--fg);border-color:var(--fg-3)}.chip[aria-selected=true]{border-color:var(--accent);color:var(--fg);background:rgba(185,168,255,.1)}
.pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;width:min(100%,900px)}
.pair figure{margin:0}.pair img{width:100%;max-height:70vh;object-fit:contain;border-radius:var(--r-sm);background:var(--bg-3)}
.pair figcaption{margin-top:8px;color:var(--fg-3);font-size:14px;text-align:center}
.caption{margin-top:16px;display:flex;justify-content:space-between;gap:16px;color:var(--fg-2);font-size:15px}.caption small{color:var(--fg-3);white-space:nowrap}
/* 图片网格 */
.gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.gallery figure{margin:0;border:1px solid var(--line);border-radius:var(--r);background:var(--card);overflow:hidden}
.gallery button{all:unset;display:block;cursor:pointer;overflow:hidden;position:relative;width:100%}
.gallery button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.gallery img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .9s var(--ease)}
.gallery button:hover img{transform:scale(1.03)}
.gallery .play{position:absolute;right:12px;bottom:12px;width:36px;height:36px;border-radius:50%;background:rgba(10,10,20,.62);border:1px solid rgba(255,255,255,.4);display:grid;place-items:center}.gallery .play svg{width:13px}
.gallery figcaption{padding:16px 20px 18px}.gallery figcaption b{display:block;font-weight:600}.gallery figcaption span{color:var(--fg-3);font-size:14px}
@media (max-width:860px){.gallery{grid-template-columns:1fr 1fr}}@media (max-width:520px){.gallery{grid-template-columns:1fr}}
.swatches{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
.swatches figure{margin:0}.swatches img{border-radius:var(--r-sm);aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line)}.swatches figcaption{margin-top:8px;font-size:14px;color:var(--fg-2)}
@media (max-width:860px){.swatches{grid-template-columns:repeat(3,1fr)}}
/* 价格 */
.prices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.price{padding:28px 30px 30px;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
.price h3{font-size:15px;color:var(--fg-2);font-weight:500}.price .num{margin-top:12px;font-size:38px;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.price .num small{font-size:16px;color:var(--fg-3);font-weight:400}.price p{margin-top:10px;color:var(--fg-2);font-size:15px}
@media (max-width:760px){.prices{grid-template-columns:1fr}}
/* 下载：产品卡里放平台小卡，右边圆形下载图标 */
.dl-card{padding:clamp(24px,3vw,36px)}
.dl-card+.dl-card{margin-top:20px}
.dl-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.dl-head h2{display:flex;align-items:center;gap:14px;font-size:clamp(24px,2.4vw,30px)}
.dl-head p{margin-top:8px;color:var(--fg-2);font-size:14px}
.dl{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:28px}
.dl-item{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 22px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--bg-3);transition:border-color .2s,background .2s}
.dl-item:hover{border-color:var(--accent);background:#1c1e33}
.dl-item h3{font-size:17px}.dl-item p{margin-top:8px;color:var(--fg-3);font-size:13px}
.dl-item .ico{flex:none;width:36px;height:36px;border-radius:50%;border:1px solid var(--fg-3);display:grid;place-items:center;color:var(--fg);transition:.2s}
.dl-item:hover .ico{border-color:var(--accent);color:var(--accent)}.dl-item .ico svg{width:15px}
.dl-item a::after{content:"";position:absolute;inset:0;border-radius:inherit}
.dl-side{display:flex;align-items:center;color:var(--fg-3);font-size:14px;padding:0 6px}
.hashes{margin-top:18px;display:grid;gap:4px}
.hash{font:12px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--fg-3);word-break:break-all}
@media (max-width:900px){.dl{grid-template-columns:1fr}}
.note{margin-top:20px;color:var(--fg-3);font-size:14px;max-width:70em}
/* 横幅 */
.band{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;padding:clamp(40px,6vw,80px);background:var(--bg-2);isolation:isolate}
.band>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-1;opacity:.55}
.band::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(10,10,20,.96) 20%,rgba(10,10,20,.35) 70%,transparent)}
.band h2{font-size:clamp(28px,3.2vw,42px);max-width:14ch}.band p{margin-top:16px;max-width:30em;color:var(--fg-2)}.band .actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
/* 帮助：搜索 + 左侧分类 + 右侧问答 */
.search{display:flex;align-items:center;gap:12px;height:60px;padding:0 22px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg-2);transition:border-color .2s}
.search:focus-within{border-color:var(--accent)}
.search svg{width:16px;color:var(--fg-3);flex:none}
.search input{all:unset;flex:1;font:15px var(--font);color:var(--fg)}.search input::placeholder{color:var(--fg-3)}
.help{display:grid;grid-template-columns:minmax(220px,400px) 1fr;gap:clamp(24px,3vw,40px);align-items:start;margin-top:clamp(40px,6vh,64px)}
.cats{position:sticky;top:96px;padding:16px;display:grid;gap:4px}
.cats button{all:unset;display:flex;align-items:center;gap:14px;height:52px;padding:0 18px;border-radius:var(--r-sm);color:var(--fg-2);cursor:pointer;transition:.2s}
.cats button:hover{color:var(--fg);background:rgba(255,255,255,.03)}
.cats button[aria-selected=true]{background:#262640;color:var(--fg)}
.cats button:focus-visible{outline:2px solid var(--accent)}
.cats svg{width:16px;flex:none}
.faq .kicker{display:block;margin-bottom:8px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0 0;font-weight:700;font-size:17px;cursor:pointer}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;font-weight:300;font-size:22px;line-height:1;color:var(--accent)}
.faq details[open] summary::after{content:"−"}
.faq details>div{padding:12px 0 22px;color:var(--fg-2);font-size:15px}
.faq details:not([open])>summary{padding-bottom:22px}
.faq details>div ul{margin:6px 0 0;padding-left:1.2em}
.faq .empty{padding:40px 0;color:var(--fg-3)}
@media (max-width:860px){.help{grid-template-columns:1fr}.cats{position:static;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}
/* 在线应用大卡 */
.app-card{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px);align-items:center;padding:clamp(28px,4vw,56px);background:radial-gradient(70% 100% at 100% 0%,rgba(110,90,220,.22),transparent 70%),linear-gradient(180deg,#191a33,#121326)}
.app-card h2{margin-top:18px;font-size:clamp(28px,3vw,40px)}
.app-card p.desc{margin-top:16px;color:var(--fg-2)}
.app-card .actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.app-card .sub{margin-top:18px;color:var(--fg-3);font-size:13px}
.drop{margin:22px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:#14162a;display:grid;place-items:center;text-align:center;padding:48px 20px;color:var(--fg-2);font-size:14px}
.drop svg{width:26px;margin:0 auto 12px;color:var(--fg)}.drop b{display:block;color:var(--fg);font-size:15px}
@media (max-width:900px){.app-card{grid-template-columns:1fr}}
/* 正文页 */
.prose{max-width:74ch}.prose h2{font-size:22px;margin:48px 0 14px;scroll-margin-top:96px}.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:var(--fg-2)}.prose p+p{margin-top:12px}.prose ul,.prose ol{padding-left:1.4em;margin:12px 0 0}.prose li+li{margin-top:10px}
.prose strong{color:var(--fg);font-weight:600}
.facts{display:grid;grid-template-columns:160px 1fr;margin:0}
.facts dt,.facts dd{margin:0;padding:16px 0;border-bottom:1px solid var(--line)}.facts dt{color:var(--fg-3);font-size:14px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,96px);align-items:start}
@media (max-width:860px){.two-col{grid-template-columns:1fr}}
/* 页脚：一行 */
.foot{margin-top:clamp(64px,10vh,120px);border-top:1px solid var(--line);padding:28px 0;color:var(--fg-3);font-size:13px}
.foot .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 32px}
.foot .brand{font-size:15px;color:var(--fg)}.foot .brand img{width:22px;height:22px}
.foot nav{display:flex;flex-wrap:wrap;gap:8px 26px}.foot nav a{color:var(--fg-2)}.foot a:hover{color:var(--fg)}
.foot .legal{display:flex;flex-wrap:wrap;gap:6px 18px}
/* 灯箱 */
.lightbox{position:fixed;inset:0;z-index:90;background:rgba(5,5,12,.92);display:grid;place-items:center;padding:4vw;opacity:0;pointer-events:none;transition:opacity .25s}
.lightbox.open{opacity:1;pointer-events:auto}.lightbox img{max-height:86vh;border-radius:8px}
.lightbox .x{position:absolute;top:18px;right:18px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line-2);background:none;color:#fff;cursor:pointer;display:grid;place-items:center}.lightbox .x svg{width:18px}
/* 出现动画：默认可见，只有脚本确认后才做淡入 */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}.js .reveal{opacity:1;transform:none}.tilt{transform:none}}