/* 象棋搭子Atlas 下载落地页样式（无依赖）。
   颜色、圆角、按钮结构取自 App 设计令牌 source/app/lib/design/tokens.dart（AGENTS.md §7.4）：
   品牌区海军蓝 brandNavyA/B、主按钮琥珀渐变 priA→priB + 底边 priEdge、次按钮 btn2、金 gold、懂你 you、双色图标 i1/i2/i3。
   规则里只用下面的变量，不写新颜色；--navy-0/1 是 brandNavyA 压暗的页面底色（网页大面积底色，App 内没有对应令牌）。
   断点：560 / 720 / 980 / 1200。 */

@font-face{font-family:"Atlas Head";src:url(../fonts/NotoSans-ExtraBold.ttf) format("truetype");font-weight:800;font-display:swap;unicode-range:U+0000-024F,U+0300-036F,U+1E00-1EFF,U+2000-206F,U+20AB}

:root{
  --navy-0:#0B121A; --navy-1:#0F1822; --navy-a:#1A2633; --navy-b:#22364A;
  --ink:#FFFFFF; --ink2:#B3B8BE; --ink3:#868C93; --ink4:#5F656C;
  --line:rgba(255,255,255,.07); --line2:rgba(255,255,255,.12); --hl:rgba(255,255,255,.07);
  --card:rgba(255,255,255,.035); --card2:rgba(255,255,255,.055);
  --pri:#A36028; --pri-a:#BD763E; --pri-b:#894B13; --pri-edge:#5D2D00; --pri-ink:#E4AD85; --pri-soft:rgba(163,96,40,.2);
  --btn2-a:#3C332B; --btn2-b:#342C25; --btn2-edge:#181310;
  --gold:#E4B750; --gold-ink:#F0CB76; --gold-soft:rgba(228,183,80,.16);
  --you:#3BB79A; --you-ink:#5ED3B8; --you-soft:rgba(23,128,109,.2);
  --star:#8EC0F2; --star-soft:rgba(95,166,242,.16);
  --red:#D9544B;
  /* 双色图标（App AtlasTileIcon 的 CSS 变量） */
  --i1:#AB6A37; --i2:#EEC8AE; --i3:#6F3902; --pc-face:#F2DDB2; --xq-red:#B3261E; --card-a:#2A2622;
  --r-btn:10px; --r-card:18px; --r-chip:17px; --r-bubble:12px;
  --f-head:"Atlas Head",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Segoe UI",Roboto,sans-serif;
  --f-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
  --top-h:64px;
}
:lang(zh-Hant-TW){--f-head:"Atlas Head",-apple-system,BlinkMacSystemFont,"PingFang TC","Microsoft JhengHei","Noto Sans TC",sans-serif;--f-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang TC","Microsoft JhengHei","Noto Sans TC",sans-serif}
:lang(zh-Hant-HK){--f-head:"Atlas Head",-apple-system,BlinkMacSystemFont,"PingFang HK","Microsoft JhengHei","Noto Sans HK","Noto Sans TC",sans-serif;--f-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang HK","Microsoft JhengHei","Noto Sans HK","Noto Sans TC",sans-serif}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--top-h) + 12px);background:var(--navy-1)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;min-width:320px;background:var(--navy-1);color:var(--ink);font:400 16px/1.6 var(--f-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3{margin:0;font-family:var(--f-head);font-weight:800;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:lang(zh){line-break:strict}
:lang(zh) h1,:lang(zh) h2,:lang(zh) h3,:lang(zh) .dl-t,:lang(zh) .pill,:lang(zh) .eyebrow,:lang(zh) .chip{word-break:keep-all;overflow-wrap:anywhere} /* 标题与短标签只在标点处换行；正文正常断行 */
:lang(zh) h1,:lang(zh) h2,:lang(zh) h3{letter-spacing:.01em}
:focus-visible{outline:2px solid var(--star);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:12px;top:-60px;z-index:100;padding:10px 16px;border-radius:var(--r-btn);background:var(--ink);color:var(--navy-1);font-weight:700}
.skip:focus{top:12px}
.i{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tile{width:40px;height:40px;flex:none}
.tile text{font-family:"PingFang TC","PingFang SC","Microsoft JhengHei","Noto Sans TC",serif}
.no-js .js-only{display:none}

/* ---------------------------------------------------------------- Atlas 星标（北极星呼吸：2 次后静止，从不旋转） */
.atlas-star{overflow:visible}
.atlas-star .st-main,.atlas-star .st-comp{transform-box:fill-box;transform-origin:center}
.breathe .st-main{animation:breathe 2.4s var(--ease) .6s 2}
@keyframes breathe{0%,100%{transform:scale(1)}45%{transform:scale(1.14)}}
.bubble.speaking .st-main{animation:speak .5s ease-in-out infinite alternate}
@keyframes speak{to{transform:scale(1.1)}}
.bubble.done .st-main{animation:done .42s var(--ease) 1}
@keyframes done{50%{transform:scale(1.22)}}

/* ---------------------------------------------------------------- 顶栏 */
.top{position:fixed;inset:0 0 auto;z-index:50;height:var(--top-h);transition:background-color .2s,box-shadow .2s,backdrop-filter .2s}
.top.scrolled{background:rgba(11,18,26,.82);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);box-shadow:0 1px 0 var(--line)}
.top-in{display:flex;align-items:center;gap:20px;height:100%}
.logo{display:flex;align-items:center;gap:10px;margin-right:auto;font-family:var(--f-head);font-weight:800;font-size:18px;white-space:nowrap}
.logo img{width:34px;height:34px;border-radius:22.5%;box-shadow:0 0 0 1px var(--line2),0 4px 12px rgba(0,0,0,.35)}
.top-nav{display:flex;gap:22px;font-size:15px;color:var(--ink2)}
.top-nav a:hover,.foot-links a:hover{color:var(--ink)}
.lang-menu{position:relative}
.lang-menu summary{display:flex;align-items:center;gap:6px;height:36px;padding:0 10px;border-radius:var(--r-btn);color:var(--ink2);font-size:14px;cursor:pointer;list-style:none;white-space:nowrap}
.lang-menu summary::-webkit-details-marker{display:none}
.lang-menu summary:hover,.lang-menu[open] summary{color:var(--ink);background:var(--card2)}
.lang-menu .i{width:18px;height:18px}
.lang-menu .chev{width:14px;height:14px;transition:transform .2s}
.lang-menu[open] .chev{transform:rotate(180deg)}
.lang-list{position:absolute;right:0;top:calc(100% + 8px);min-width:200px;padding:6px;border-radius:14px;background:#17222E;box-shadow:0 0 0 1px var(--line2),0 18px 40px rgba(0,0,0,.5)}
.lang-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 12px;border-radius:9px;font-size:15px;color:var(--ink2)}
.lang-list a:hover{background:var(--card2);color:var(--ink)}
.lang-list a[aria-current]{color:var(--ink);font-weight:700}
.lang-list .i{width:16px;height:16px;color:var(--gold)}
.btn-s{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:9px;font-weight:700;font-size:15px;white-space:nowrap;
  background:linear-gradient(var(--btn2-a),var(--btn2-b));box-shadow:inset 0 1px 0 var(--hl),0 2px 0 var(--btn2-edge),0 4px 10px rgba(0,0,0,.3);transition:transform 80ms,box-shadow 80ms}
.btn-s:active{transform:translateY(2px);box-shadow:inset 0 1px 0 var(--hl),0 0 0 var(--btn2-edge)}

/* ---------------------------------------------------------------- 下载按钮（App 半扁平按钮：纵向渐变 + 顶部高光 + 底边 + 投影，按下下沉 2px） */
.dl-group{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.dl{position:relative;display:inline-flex;align-items:center;gap:11px;min-width:196px;height:56px;padding:0 20px 0 16px;border-radius:var(--r-btn);
  color:var(--ink);text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent;
  background:linear-gradient(var(--btn2-a),var(--btn2-b));box-shadow:inset 0 1px 0 var(--hl),0 3px 0 var(--btn2-edge),0 8px 18px rgba(0,0,0,.32);
  transition:transform 80ms,box-shadow 80ms,filter .15s}
.dl:hover{filter:brightness(1.08)}
.dl:active{transform:translateY(2px);box-shadow:inset 0 1px 0 var(--hl),0 1px 0 var(--btn2-edge),0 4px 10px rgba(0,0,0,.3);transition-duration:120ms}
.dl.pri{background:linear-gradient(var(--pri-a),var(--pri-b));box-shadow:inset 0 1px 0 rgba(255,255,255,.26),0 3px 0 var(--pri-edge),0 10px 26px rgba(163,96,40,.38)}
.dl.pri:active{box-shadow:inset 0 1px 0 rgba(255,255,255,.26),0 1px 0 var(--pri-edge),0 5px 14px rgba(163,96,40,.3)}
.dl-g{width:26px;height:26px;flex:none;fill:currentColor}
.dl-g-play .gp-b{fill:#00C3FF}.dl-g-play .gp-g{fill:#00E676}.dl-g-play .gp-r{fill:#FF3A44}.dl-g-play .gp-y{fill:#FFD400}
.dl-g-android{color:#3DDC84}.dl-g-android .cut{fill:var(--btn2-b)}
.dl.pri .dl-g-android .cut{fill:var(--pri-b)}
.dl-t{display:flex;flex-direction:column;line-height:1.15}
.dl-t small{font-size:12px;font-weight:500;color:rgba(255,255,255,.72);letter-spacing:.01em}
.dl-t b{font-family:var(--f-head);font-weight:800;font-size:18px;letter-spacing:0;white-space:nowrap}
[data-os=android] .dl-play{order:-2}[data-os=android] .dl-apk{order:-1} /* Android：Google Play 第一、APK 第二（DOM 顺序不变，校验依赖它） */
.dl.is-off{cursor:not-allowed;filter:saturate(.4);opacity:.6;box-shadow:inset 0 1px 0 var(--hl),0 3px 0 var(--btn2-edge)}
.dl.is-off:hover{filter:saturate(.4)}
.dl.is-off:active{transform:none}
.dl.is-off .dl-t small{color:var(--gold-ink)}

/* ---------------------------------------------------------------- 首屏 */
.hero{position:relative;overflow:hidden;padding-top:calc(var(--top-h) + clamp(14px,3.2vh,40px));background:var(--navy-0);isolation:isolate;
  --pw:clamp(250px,21vw,318px);            /* 手机宽 */
  --ph:calc(var(--pw) * 2.1727);           /* 手机高（截图 1320×2868） */
  --rw:max(1680px,128vw);                  /* 河面图层宽 */
  --rh:calc(var(--rw) * .42708);           /* 河面图层高（1920×820） */
  --ground:clamp(96px,13vh,150px);         /* 地平线以下露出的高度 */
  --pv:clamp(300px,calc(var(--avail,560px) - var(--ground) - 26px),calc(var(--ph) * .74)); /* 手机露出高度：舞台底边落在第一屏底部 */
  --gen:clamp(170px,17vw,290px);           /* 帥 / 將 尺寸 */
}
.hero-sky{position:absolute;inset:0 0 auto;z-index:-2;height:calc(100% - var(--ground) + 60px);background:url(../img/sky_wide.webp) 50% 100%/cover no-repeat var(--navy-0)}
.hero-sky::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,18,26,.55) 0,rgba(11,18,26,0) 38%)}
.sky-stars{position:absolute;inset:0 0 25%;width:100%;height:75%}
.sky-stars .tw circle{fill:#DCE9F6;opacity:.5;animation:tw 4.6s ease-in-out infinite alternate}
.sky-stars .tw circle:nth-child(3n){animation-delay:-1.7s;animation-duration:5.8s}
.sky-stars .tw circle:nth-child(3n+1){animation-delay:-3.1s}
.sky-stars .gl circle{fill:#FFF3D6;opacity:.85;filter:drop-shadow(0 0 4px rgba(255,220,150,.8))}
@keyframes tw{from{opacity:.18}to{opacity:.7}}
.hero-copy{position:relative;z-index:3;text-align:center}
.pill{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px 0 10px;border-radius:999px;font-size:14px;font-weight:600;color:#DCEAF8;
  background:rgba(20,32,46,.62);box-shadow:inset 0 0 0 1px rgba(142,192,242,.38),0 0 24px rgba(95,166,242,.14);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.pill-star{width:22px;height:22px}
.hero-title{margin:clamp(12px,2vh,20px) auto 0;max-width:15em;font-size:clamp(40px,5.4vw,72px);line-height:1.08;text-shadow:0 4px 40px rgba(0,0,0,.45);text-wrap:balance}
.lead{margin:clamp(12px,1.8vh,18px) auto 0;max-width:40em;color:var(--ink2);font-size:clamp(16px,1.35vw,19px);line-height:1.62;text-wrap:pretty}
.dl-wrap{display:flex;justify-content:center;align-items:flex-start;gap:12px;margin-top:clamp(18px,3vh,30px);outline:none}
.req{margin-top:12px;color:var(--ink3);font-size:13px}
.apk-hint{display:none;margin-top:4px;color:var(--ink3);font-size:13px}
[data-os=android] .apk-hint{display:block}
.qr-pop{position:relative}
.qr-pop summary{display:grid;place-items:center;width:56px;height:56px;border-radius:var(--r-btn);cursor:pointer;list-style:none;color:var(--ink2);
  background:linear-gradient(var(--btn2-a),var(--btn2-b));box-shadow:inset 0 1px 0 var(--hl),0 3px 0 var(--btn2-edge),0 8px 18px rgba(0,0,0,.32)}
.qr-pop summary::-webkit-details-marker{display:none}
.qr-pop summary:hover,.qr-pop[open] summary{color:var(--ink)}
.qr-pop summary .i{width:24px;height:24px}
.qr-pop .qr-card{position:absolute;right:0;top:calc(100% + 12px);z-index:20;width:236px}
[data-os=ios] .qr-pop,[data-os=android] .qr-pop{display:none}
.qr-card{display:flex;flex-direction:column;align-items:center;gap:12px;padding:16px;border-radius:16px;background:#F7F2EA;color:#1A2026;text-align:center;box-shadow:0 18px 40px rgba(0,0,0,.45)}
.qr-card .qr-code{width:160px;height:160px}
.qr-card p{font-size:13px;line-height:1.45;color:#5D6670}
.qr-card b{display:block;color:#1A2026;font-size:15px}

/* 舞台：手机从河面升起；河面图层盖住手机下部；帥 / 將 站在两岸 */
.stage{position:relative;z-index:1;height:calc(var(--pv) + var(--ground) + 26px);margin-top:clamp(18px,3.4vh,40px)}
.rise{position:absolute;left:50%;top:26px;width:var(--pw);height:var(--ph);transform:translateX(-50%);z-index:1}
.rise::before{content:"";position:absolute;left:50%;top:38%;width:260%;height:110%;transform:translate(-50%,-50%);z-index:-1;pointer-events:none;
  background:radial-gradient(closest-side,rgba(240,200,120,.34),rgba(228,183,80,.12) 46%,rgba(228,183,80,0) 72%)}
.phone{position:relative;margin:0;border-radius:calc(var(--w,300px) * .15);padding:calc(var(--w,300px) * .028);background:linear-gradient(145deg,#3A3631,#141210 38%,#2A2622);
  box-shadow:0 0 0 1px rgba(255,255,255,.1),inset 0 0 0 1px rgba(255,255,255,.08),0 30px 60px rgba(0,0,0,.45)}
.phone img{width:100%;height:auto;border-radius:calc(var(--w,300px) * .124);background:#1B1612}
.phone-hero{--w:var(--pw);box-shadow:0 0 0 1px rgba(255,236,200,.18),inset 0 0 0 1px rgba(255,255,255,.08),0 0 80px rgba(228,183,80,.28),0 30px 60px rgba(0,0,0,.5)}
.river{position:absolute;left:50%;z-index:2;width:var(--rw);max-width:none;height:auto;transform:translateX(-50%);pointer-events:none;
  top:calc(26px + var(--pv) - var(--rh) * .305)}
.general{position:absolute;z-index:3;width:var(--gen);height:var(--gen);max-width:none;pointer-events:none;top:calc(26px + var(--pv) + var(--ground) * .40 - var(--gen) * .955);
  filter:drop-shadow(0 14px 18px rgba(0,0,0,.55))}
.shuai{left:calc(50% - var(--pw) / 2 - var(--gen) - clamp(40px,7vw,130px))}
.jiang{left:calc(50% + var(--pw) / 2 + clamp(40px,7vw,130px))}
.bubble{position:absolute;left:calc(100% - 12px);top:16%;z-index:4;display:flex;align-items:flex-start;gap:10px;width:max-content;max-width:min(270px,30vw);padding:12px 16px 12px 12px;
  border-radius:var(--r-bubble);border-top-left-radius:4px;background:rgba(20,32,46,.84);box-shadow:inset 0 0 0 1px rgba(142,192,242,.32),0 14px 34px rgba(0,0,0,.4);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:15px;line-height:1.5;color:#EAF2FB;text-align:left}
.bubble-star{width:26px;height:26px;margin-top:-2px}
.type{position:relative}
.type .typed{position:absolute;inset:0}
.trust{position:absolute;left:0;right:0;bottom:16px;z-index:4;display:flex;justify-content:center;flex-wrap:wrap;gap:6px 28px;padding:0 16px;font-size:14px;color:#D5DCE3}
.trust li{display:flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;background:rgba(11,18,26,.55);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.trust .i{width:16px;height:16px;color:var(--gold)}
.stage::after{content:"";position:absolute;left:0;right:0;bottom:0;z-index:3;height:min(60%,140px);background:linear-gradient(rgba(15,24,34,0),rgba(15,24,34,.72) 55%,var(--navy-1));pointer-events:none}

/* ---------------------------------------------------------------- 通用小节 */
.sec{position:relative;padding:clamp(60px,7.5vw,104px) 0}
.sec-head{max-width:760px;margin:0 auto clamp(36px,5vw,60px);text-align:center}
.sec-head h2{font-size:clamp(28px,3.6vw,46px);line-height:1.18;text-wrap:balance}
.sec-sub{margin-top:14px;color:var(--ink2);font-size:clamp(15px,1.25vw,18px)}
.eyebrow{display:inline-flex;align-items:center;height:28px;margin-bottom:14px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--gold-ink);background:var(--gold-soft)}
.eyebrow-you{color:var(--you-ink);background:var(--you-soft)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:calc(var(--d,0) * 90ms)}
.reveal.in,.no-js .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------------------------------------------------------------- 两个卖点 */
.pillars{background:radial-gradient(60% 50% at 50% 0,rgba(34,54,74,.55),rgba(34,54,74,0)) no-repeat}
.pillar-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pillar{position:relative;display:flex;flex-direction:column;overflow:hidden;padding:36px 36px 0;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(34,54,74,.62),rgba(26,38,51,.4));box-shadow:inset 0 0 0 1px var(--line2),0 20px 50px rgba(0,0,0,.28)}
.pillar::before{content:"";position:absolute;inset:-30% -20% auto auto;width:70%;height:70%;border-radius:50%;filter:blur(40px);opacity:.55;pointer-events:none;background:radial-gradient(closest-side,rgba(95,166,242,.45),transparent)}
.pillar-you::before{background:radial-gradient(closest-side,rgba(59,183,154,.4),transparent)}
.tag{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 12px 0 6px;border-radius:999px;font-size:14px;font-weight:700;color:#CFE4FB;background:var(--star-soft)}
.tag .atlas-star{width:22px;height:22px}
.tag .tile{width:24px;height:24px}
.pillar-you .tag{color:var(--you-ink);background:var(--you-soft)}
.pillar h3{margin-top:18px;font-size:clamp(22px,2.1vw,28px)}
.pillar .body{margin-top:12px;color:var(--ink2);font-size:16px}
.ticks{display:grid;gap:10px;margin-top:20px}
.ticks li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#D8DDE2}
.ticks .i{width:18px;height:18px;margin-top:3px;color:var(--star)}
.pillar-you .ticks .i{color:var(--you-ink)}
.pillar-visual{position:relative;margin-top:34px;display:flex;justify-content:center}
.pillar-visual .phone{--w:270px;width:270px;margin-bottom:-160px}
.callout{position:absolute;top:56px;right:calc(50% - 250px);display:flex;align-items:center;gap:8px;max-width:220px;padding:10px 14px;border-radius:var(--r-bubble);font-size:14px;font-weight:600;line-height:1.4;
  background:rgba(20,32,46,.9);box-shadow:inset 0 0 0 1px rgba(142,192,242,.3),0 12px 30px rgba(0,0,0,.4);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.callout .atlas-star{width:22px;height:22px;flex:none}
.callout .tile{width:26px;height:26px}
.pillar-you .callout{right:auto;left:calc(50% - 250px);box-shadow:inset 0 0 0 1px rgba(94,211,184,.32),0 12px 30px rgba(0,0,0,.4)}

/* ---------------------------------------------------------------- 三步闭环 */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;counter-reset:s}
.steps::before{content:"";position:absolute;top:31px;left:16.6%;right:16.6%;border-top:2px dashed rgba(228,183,80,.38)}
.step{position:relative;text-align:center;padding:0 8px}
.node{position:relative;display:grid;place-items:center;width:64px;height:64px;margin:0 auto;border-radius:20px;background:#1C2836;box-shadow:inset 0 0 0 1px var(--line2),0 0 0 8px var(--navy-1)}
.node .tile{width:38px;height:38px}
.num{display:block;margin-top:18px;font:800 13px/1 var(--f-head);letter-spacing:.12em;color:var(--gold)}
.step h3{margin-top:10px;font-size:21px}
.step p{margin-top:8px;color:var(--ink2);font-size:15px}
.loop-note{display:flex;gap:10px;align-items:flex-start;max-width:760px;margin:44px auto 0;padding:14px 18px;border-radius:14px;font-size:14px;color:var(--ink2);background:var(--card);box-shadow:inset 0 0 0 1px var(--line)}
.loop-note .i{width:18px;height:18px;margin-top:2px;color:var(--you-ink)}

/* ---------------------------------------------------------------- 电脑对手 */
.rivals{background:linear-gradient(180deg,rgba(26,38,51,0),rgba(26,38,51,.55) 30%,rgba(26,38,51,.55) 70%,rgba(26,38,51,0))}
.rival-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rival{position:relative;padding:24px 22px 24px;border-radius:var(--r-card);background:var(--card);box-shadow:inset 0 0 0 1px var(--line2);transition:transform .2s var(--ease),box-shadow .2s}
.rival:hover{transform:translateY(-3px);box-shadow:inset 0 0 0 1px rgba(228,183,80,.32),0 16px 34px rgba(0,0,0,.3)}
.rival-av{display:block;width:72px;height:72px;border-radius:50%;overflow:hidden;box-shadow:0 0 0 3px rgba(255,255,255,.08)}
.rival-av img{width:100%;height:100%;object-fit:cover}
.av-atlas{display:grid;place-items:center;width:100%;height:100%;background:radial-gradient(circle at 50% 40%,#2B4560,#1A2633)}
.av-star{width:44px;height:44px}
.rival-trait{position:absolute;top:28px;right:20px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;color:var(--pri-ink);background:var(--pri-soft)}
.rival-atlas .rival-trait{color:#CFE4FB;background:var(--star-soft)}
.rival h3{margin-top:18px;font-size:20px}
.rival p{margin-top:8px;color:var(--ink2);font-size:14px;line-height:1.55}
.ladder{max-width:880px;margin:44px auto 0}
.ladder-bar{display:grid;grid-template-columns:repeat(12,1fr);gap:6px}
.ladder-bar li{position:relative;height:38px;border-radius:8px;display:grid;place-items:center;font:800 13px/1 var(--f-head);color:rgba(255,255,255,.88);
  background:linear-gradient(180deg,hsl(calc(32 - var(--n) * 1.2) 58% calc(28% + var(--n) * 2.4%)),hsl(calc(28 - var(--n) * 1.2) 62% calc(22% + var(--n) * 2.2%)));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.16),0 2px 0 rgba(0,0,0,.35)}
.ladder-bar li.elite{background:linear-gradient(180deg,#E4B750,#B88A2C);color:#2B1A00;box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 2px 0 #6F4F10,0 0 18px rgba(228,183,80,.35)}
.ladder-legend{display:flex;justify-content:space-between;gap:16px;margin-top:12px;font-size:13px;color:var(--ink3)}
.ladder-legend .elite-note{color:var(--gold-ink);text-align:center}

/* ---------------------------------------------------------------- 功能宫格 */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat{padding:26px 26px 28px;border-radius:var(--r-card);background:var(--card);box-shadow:inset 0 0 0 1px var(--line2);transition:transform .2s var(--ease),box-shadow .2s}
.feat:hover{transform:translateY(-3px);box-shadow:inset 0 0 0 1px rgba(228,183,80,.3),0 16px 34px rgba(0,0,0,.3)}
.ib{display:grid;place-items:center;width:56px;height:56px;border-radius:16px;background:var(--pri-soft)}
.feat h3{margin-top:18px;font-size:20px}
.feat p{margin-top:8px;color:var(--ink2);font-size:15px}

/* ---------------------------------------------------------------- 截图画廊 */
.gallery{padding-bottom:clamp(56px,8vw,96px)}
.gal-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.gal-head .sec-head{margin:0 0 36px;text-align:left}
.gal-nav{display:flex;gap:10px;margin-bottom:40px}
.nav-btn{display:grid;place-items:center;width:46px;height:46px;border:0;border-radius:50%;cursor:pointer;background:linear-gradient(var(--btn2-a),var(--btn2-b));box-shadow:inset 0 1px 0 var(--hl),0 2px 0 var(--btn2-edge)}
.nav-btn:disabled{opacity:.35;cursor:default}
.rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px max(24px,calc((100vw - 1152px) / 2)) 28px;scrollbar-width:none;outline:none}
.rail::-webkit-scrollbar{display:none}
.shot{flex:none;width:272px;margin:0;scroll-snap-align:center;display:flex;flex-direction:column;gap:18px;padding:22px 20px 0;border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(180deg,rgba(34,54,74,.7),rgba(26,38,51,.25));box-shadow:inset 0 0 0 1px var(--line2)}
.shot.acc-gold{background:linear-gradient(180deg,rgba(137,75,19,.42),rgba(26,38,51,.25))}
.shot.acc-teal{background:linear-gradient(180deg,rgba(23,128,109,.32),rgba(26,38,51,.25))}
.shot figcaption{display:flex;flex-direction:column;gap:4px;min-height:96px}
.chip{align-self:flex-start;margin-bottom:6px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;color:var(--gold-ink);background:var(--gold-soft)}
.acc-blue .chip{color:#CFE4FB;background:var(--star-soft)}
.acc-teal .chip{color:var(--you-ink);background:var(--you-soft)}
.shot b{font-family:var(--f-head);font-weight:800;font-size:19px;line-height:1.3}
.shot .l2{color:var(--ink2);font-size:14px;line-height:1.45}
.shot .phone{--w:232px;width:232px;margin:0 auto -150px}

/* ---------------------------------------------------------------- 常见问题 */
.faq-in{max-width:860px}
.qa-list{display:grid;gap:12px}
.qa{border-radius:14px;background:var(--card);box-shadow:inset 0 0 0 1px var(--line2)}
.qa summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;cursor:pointer;list-style:none;font-weight:700;font-size:16px}
.qa summary::-webkit-details-marker{display:none}
.qa .chev{width:18px;height:18px;color:var(--ink3);transition:transform .2s}
.qa[open] .chev{transform:rotate(180deg)}
.qa .a{padding:0 20px 18px;color:var(--ink2);font-size:15px}

/* ---------------------------------------------------------------- 结尾下载 */
.cta{position:relative;overflow:hidden;padding:clamp(80px,10vw,120px) 0 clamp(150px,18vw,240px);text-align:center;isolation:isolate}
.cta-sky{position:absolute;inset:0;z-index:-2;background:url(../img/sky_wide.webp) 50% 100%/cover no-repeat}
.cta-sky::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--navy-1) 0,rgba(15,24,34,.25) 30%,rgba(15,24,34,0) 60%)}
.river-cta{position:absolute;left:50%;bottom:calc(var(--rh-cta) * -.42);z-index:-1;width:max(1600px,120vw);max-width:none;transform:translateX(-50%);--rh-cta:calc(max(1600px,120vw) * .42708)}
.general-cta{z-index:0;top:auto;bottom:clamp(34px,5vw,70px);width:clamp(120px,15vw,230px);height:auto}
.cta .shuai{left:max(2%,calc(50% - 640px))}
.cta .jiang{left:auto;right:max(2%,calc(50% - 640px))}
.cta-in{position:relative}
.cta-mark{width:112px;height:112px;margin:0 auto 26px;border-radius:22.5%;box-shadow:0 0 0 1px rgba(255,236,200,.2),0 0 60px rgba(228,183,80,.32),0 20px 40px rgba(0,0,0,.45)}
.cta h2{font-size:clamp(32px,4.4vw,56px)}
.cta .lead{margin-top:14px}
.cta-row{display:flex;justify-content:center;align-items:center;gap:36px;margin-top:34px}
.cta-dl{display:flex;flex-direction:column;align-items:center}
.apk-meta{display:flex;flex-direction:column;align-items:center;gap:4px;margin-top:6px;font-size:13px;color:var(--ink3)}
.apk-meta summary{cursor:pointer}
.apk-meta code{display:block;max-width:90vw;margin-top:4px;font-size:11px;word-break:break-all;color:var(--ink2)}
.qr-inline{width:200px;flex:none}
.qr-inline .qr-code{width:150px;height:150px}
[data-os=ios] .qr-inline,[data-os=android] .qr-inline{display:none}

/* ---------------------------------------------------------------- 页脚 */
.foot{position:relative;padding:48px 0 40px;background:var(--navy-0);box-shadow:0 -1px 0 var(--line)}
.foot-in{display:grid;grid-template-columns:1fr auto;gap:22px 40px}
.foot-brand p{margin-top:8px;color:var(--ink3);font-size:14px}
.foot-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:10px 22px;font-size:14px;color:var(--ink2)}
.foot-links a{display:inline-flex;align-items:center;gap:6px}
.foot-links .i{width:16px;height:16px}
.foot-links a[aria-current]{color:var(--ink)}
.foot-langs{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:6px 18px;padding-top:20px;border-top:1px solid var(--line);font-size:13px}
.foot-langs a{color:var(--ink3)}
.foot-langs a:hover,.foot-langs a[aria-current]{color:var(--ink)}
.foot-legal{grid-column:1/-1;display:grid;gap:6px;color:var(--ink4);font-size:12px;line-height:1.6}

/* ---------------------------------------------------------------- 法律页 */
.legal-hero{padding:calc(var(--top-h) + 48px) 0 36px;background:radial-gradient(70% 120% at 50% 0,rgba(34,54,74,.8),rgba(15,24,34,0))}
.legal-back{display:inline-flex;align-items:center;gap:6px;color:var(--ink2);font-size:14px}
.legal-back .i{width:16px;height:16px}
.legal-back:hover{color:var(--ink)}
.legal-hero h1{margin-top:18px;font-size:clamp(30px,4vw,46px)}
.legal-updated{margin-top:10px;color:var(--ink3);font-size:14px}
.legal-note{margin-top:14px;max-width:720px;padding:10px 14px;border-radius:12px;font-size:14px;color:var(--ink2);background:var(--card);box-shadow:inset 0 0 0 1px var(--line)}
.legal-note a{color:var(--gold-ink);text-decoration:underline;text-underline-offset:3px}
.legal-body{display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px;align-items:start;padding-bottom:96px}
.toc{position:sticky;top:calc(var(--top-h) + 20px);max-height:calc(100vh - var(--top-h) - 40px);overflow:auto}
.toc-box{border-radius:14px;background:var(--card);box-shadow:inset 0 0 0 1px var(--line)}
.toc-title{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 8px;font-weight:700;font-size:14px;color:var(--ink2);list-style:none;cursor:default}
.toc-title::-webkit-details-marker{display:none}
.toc-title .chev{display:none;width:16px;height:16px}
.toc ol{padding:0 8px 10px;counter-reset:t}
.toc li{counter-increment:t}
.toc a{display:flex;gap:8px;padding:6px 8px;border-radius:8px;font-size:13.5px;line-height:1.45;color:var(--ink3)}
.toc a::before{content:counter(t) ".";flex:none;min-width:1.4em;color:var(--ink4)}
.toc a:hover,.toc a.on{color:var(--ink);background:var(--card2)}
.doc{max-width:760px;font-size:16px;line-height:1.75;color:#D5DAE0;outline:none}
.doc h2{margin:44px 0 12px;font-size:23px;color:var(--ink);scroll-margin-top:calc(var(--top-h) + 16px)}
.doc h2:first-child{margin-top:0}
.doc h3{margin:26px 0 8px;font-size:18px;color:var(--ink)}
.doc p{margin:12px 0}
.doc ul,.doc ol{margin:12px 0;padding-left:1.4em}
.doc ul{list-style:disc}.doc ol{list-style:decimal}
.doc li{margin:6px 0;padding-left:.2em}
.doc li::marker{color:var(--ink4)}
.doc strong{color:var(--ink)}
.doc a{color:var(--gold-ink);text-decoration:underline;text-decoration-color:rgba(240,203,118,.4);text-underline-offset:3px}
.doc a:hover{text-decoration-color:currentColor}
.legal .foot{margin-top:0}

/* ---------------------------------------------------------------- 断点 */
@media (max-width:1199px){
  .pillar{padding:30px 28px 0}
  .callout{right:12px}.pillar-you .callout{left:12px}
}
@media (max-width:979px){
  .top-nav{display:none}
  .pillar-grid{grid-template-columns:1fr}
  .pillar{max-width:640px;margin:0 auto;width:100%}
  .callout{right:calc(50% - 260px)}.pillar-you .callout{left:calc(50% - 260px)}
  .rival-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .legal-body{grid-template-columns:1fr;gap:24px}
  .toc{position:static;max-height:none}
  .toc-title{cursor:pointer;padding-bottom:14px}
  .toc-box[open] .toc-title{padding-bottom:8px}
  .toc-title .chev{display:block;transition:transform .2s}
  .toc-box[open] .chev{transform:rotate(180deg)}
  .hero{--rw:max(1400px,150vw);--gen:clamp(130px,19vw,200px)}
}
@media (max-width:720px){
  .wrap{padding:0 16px}
  .hero{--pw:clamp(190px,50vw,250px);--rw:max(760px,190vw);--ground:clamp(90px,12vh,120px);--gen:clamp(96px,27vw,150px);--pv:clamp(230px,calc(var(--avail,420px) - var(--ground) - 26px),calc(var(--ph) * .7))}
  .hero-title{font-size:clamp(34px,9.6vw,48px)}
  .lead{font-size:15.5px}
  .dl-wrap{display:block;max-width:420px;margin-left:auto;margin-right:auto}
  .dl-group{flex-direction:column;gap:12px}
  .dl{width:100%;justify-content:center;min-width:0}
  .dl-t{flex-direction:row;align-items:baseline;gap:8px}
  .dl-t small{font-size:14px}
  .qr-pop{display:none}
  .shuai{left:calc(50% - var(--pw) / 2 - var(--gen) * .92)}
  .jiang{left:calc(50% + var(--pw) / 2 - var(--gen) * .08)}
  .bubble{display:none}
  .trust{gap:6px 8px;font-size:12.5px}
  .trust li{padding:5px 10px}
  .steps{grid-template-columns:1fr;gap:34px}
  .steps::before{display:none}
  .feat-grid{grid-template-columns:1fr}
  .rival-grid{gap:12px}
  .rival{padding:18px 16px}
  .rival-av{width:56px;height:56px}
  .rival-trait{top:20px;right:12px}
  .pillar{padding:26px 20px 0}
  .pillar-visual .phone{--w:236px;width:236px}
  .callout{right:0;top:30px;max-width:180px;font-size:13px}.pillar-you .callout{left:0}
  .gal-head .sec-head{margin-bottom:24px}
  .gal-nav{display:none}
  .rail{padding-left:16px;padding-right:16px}
  .shot{width:244px}
  .cta-row{flex-direction:column;gap:20px}
  .cta{padding-bottom:210px}
  .river-cta{width:1100px;--rh-cta:calc(1100px * .42708);bottom:calc(var(--rh-cta) * -.36)}
  .general-cta{width:96px;bottom:24px}
  .foot-in{grid-template-columns:1fr}
  .foot-links{justify-content:flex-start}
}
@media (max-width:560px){
  .general-cta{display:none}
  .logo span{font-size:16px}
  .lang-menu summary span{display:none}
  .rival-grid{grid-template-columns:1fr 1fr}
  .rival h3{font-size:17px}
  .rival p{font-size:13px}
  .rival-trait{position:static;display:inline-block;margin-top:12px}
  .rival h3{margin-top:8px}
  .ladder-bar{gap:3px}
  .ladder-bar li{height:30px;font-size:11px;border-radius:6px}
  .ladder-legend{font-size:12px}
  .ladder-legend .elite-note{display:none}
}
@media (min-width:721px) and (max-height:800px){
  .hero{--ground:clamp(80px,11vh,110px);--pv:clamp(220px,calc(var(--avail,480px) - var(--ground) - 26px),calc(var(--ph) * .74));--gen:clamp(150px,14vw,220px);padding-top:calc(var(--top-h) + 10px)}
  .hero-title{font-size:clamp(38px,4.6vw,58px);margin-top:10px}
  .lead{margin-top:10px;font-size:16px}
  .dl-wrap{margin-top:18px}
  .stage{margin-top:14px}
}
@media (prefers-reduced-motion:reduce){
  .sky-stars .tw circle,.breathe .st-main,.bubble .st-main{animation:none!important}
  .rival,.feat,.dl{transition:none}
}