/* =========================================================
   ACE 扫单系统 · 展示型官网 共享样式
   双主题：浅色（默认 白底黑字）/ 深色（html[data-theme="dark"]）
   ========================================================= */
:root{
  --bg:#f6f8fb;
  --bg-2:#eef2f8;
  --panel:#ffffff;
  --panel-2:#f1f5f9;
  --line:#dbe3ee;
  --txt:#0f172a;
  --muted:#52627a;
  --cyan:#0891b2;
  --blue:#2563eb;
  --violet:#7c3aed;
  --grad:linear-gradient(120deg,var(--cyan),var(--blue) 55%,var(--violet));
  --radius:16px;
  --maxw:1140px;
  --shadow:0 18px 50px rgba(15,23,42,.10);
  --note:#64748b;
  --header-bg:rgba(255,255,255,.88);
  --nav-bg:rgba(255,255,255,.97);
  --footer-bg:#eef2f7;
  --input-bg:#ffffff;
  --tint:rgba(236,241,248,.65);
  --grid-line:rgba(100,116,139,.07);
  --glow-1:rgba(37,99,235,.06);
  --glow-2:rgba(8,145,178,.05);
  --sel:rgba(8,145,178,.22);
  --sb-thumb:rgba(100,116,139,.30);
  --btn-txt:#ffffff;
  --btn-shadow:0 8px 26px rgba(37,99,235,.22);
  --btn-shadow-h:0 12px 34px rgba(37,99,235,.32);
  --cyan-soft:rgba(8,145,178,.09);
  --cyan-line:rgba(8,145,178,.35);
  --hov:rgba(8,145,178,.45);
  --blue-soft:rgba(37,99,235,.08);
  --tag-line:rgba(37,99,235,.35);
  --tag-txt:#1e40af;
  --ph:#b45309;
  --toast-bg:rgba(255,255,255,.97);
  --toast-line:rgba(8,145,178,.45);
  --ver-grad:linear-gradient(180deg,rgba(255,255,255,.9),rgba(241,245,249,.7));
  --quote-bg:rgba(37,99,235,.06);
  --price-best:linear-gradient(180deg,rgba(8,145,178,.08),rgba(255,255,255,.4));
  --gall-bg:#ffffff;
  --tl-glow:rgba(8,145,178,.35);
  --focus-ring:rgba(8,145,178,.15);
}
html[data-theme="dark"]{
  --bg:#070b14;
  --bg-2:#0a1120;
  --panel:rgba(148,163,184,.07);
  --panel-2:rgba(148,163,184,.12);
  --line:rgba(148,163,184,.18);
  --txt:#e6edf7;
  --muted:#9aa7bd;
  --cyan:#22d3ee;
  --blue:#3b82f6;
  --violet:#8b5cf6;
  --shadow:0 18px 50px rgba(2,8,20,.5);
  --note:#8b99b5;
  --header-bg:rgba(7,11,20,.84);
  --nav-bg:rgba(9,14,26,.97);
  --footer-bg:rgba(7,11,20,.72);
  --input-bg:rgba(7,11,20,.6);
  --tint:rgba(11,18,32,.5);
  --grid-line:rgba(148,163,184,.05);
  --glow-1:rgba(59,130,246,.16);
  --glow-2:rgba(34,211,238,.10);
  --sel:rgba(34,211,238,.35);
  --sb-thumb:rgba(148,163,184,.25);
  --btn-txt:#04121f;
  --btn-shadow:0 8px 26px rgba(34,211,238,.28);
  --btn-shadow-h:0 12px 34px rgba(34,211,238,.42);
  --cyan-soft:rgba(34,211,238,.10);
  --cyan-line:rgba(34,211,238,.40);
  --hov:rgba(34,211,238,.45);
  --blue-soft:rgba(59,130,246,.15);
  --tag-line:rgba(59,130,246,.40);
  --tag-txt:#93c5fd;
  --ph:#fbbf24;
  --toast-bg:rgba(13,20,36,.96);
  --toast-line:rgba(34,211,238,.50);
  --ver-grad:linear-gradient(180deg,rgba(148,163,184,.09),rgba(148,163,184,.03));
  --quote-bg:rgba(59,130,246,.08);
  --price-best:linear-gradient(180deg,rgba(34,211,238,.10),rgba(148,163,184,.03));
  --gall-bg:#0d1424;
  --tl-glow:rgba(34,211,238,.70);
  --focus-ring:rgba(34,211,238,.15);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;color-scheme:light}
html[data-theme="dark"]{color-scheme:dark}
body{
  font-family:"Microsoft YaHei","PingFang SC","HarmonyOS Sans SC","Segoe UI",system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--txt);line-height:1.75;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* 背景光晕 + 淡网格 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(620px 320px at 85% -5%,var(--glow-1),transparent 70%),
    radial-gradient(720px 380px at 0% 8%,var(--glow-2),transparent 70%),
    var(--bg);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse 92% 62% at 50% 0%,#000 30%,transparent 78%);
          mask-image:radial-gradient(ellipse 92% 62% at 50% 0%,#000 30%,transparent 78%);
}
a{color:inherit;text-decoration:none}
::selection{background:var(--sel)}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-thumb{background:var(--sb-thumb);border-radius:8px}
::-webkit-scrollbar-track{background:var(--bg)}
.container{width:min(var(--maxw),92%);margin:0 auto}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.mono{font-family:Consolas,"JetBrains Mono",monospace;letter-spacing:.5px}
.center{text-align:center}
.note{font-size:13px;color:var(--note)}

/* ---------------- 顶部导航 ---------------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s;border-bottom:1px solid transparent}
.site-header.scrolled{background:var(--header-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:28px;font-size:15px}
.nav-links>a{color:var(--muted);transition:.2s;position:relative;padding:6px 0}
.nav-links>a:hover{color:var(--txt)}
.nav-links>a.active{color:var(--txt)}
.nav-links>a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--grad)}
.theme-toggle{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--panel);color:var(--txt);cursor:pointer;font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;margin-left:18px;transition:.2s;flex-shrink:0;padding:0}
.theme-toggle:hover{border-color:var(--cyan);transform:rotate(15deg)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--txt);border-radius:2px;transition:.3s}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------------- 按钮 ---------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-weight:700;font-size:15px;background:var(--grad);color:var(--btn-txt)!important;box-shadow:var(--btn-shadow);transition:.25s;border:none;cursor:pointer}
.btn:hover{transform:translateY(-2px);box-shadow:var(--btn-shadow-h)}
.btn.ghost{background:transparent;color:var(--txt)!important;border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--cyan);color:var(--cyan)!important}
.btn-sm{padding:9px 20px;font-size:14px}

/* ---------------- 首屏 Hero ---------------- */
.hero{position:relative;padding:170px 0 96px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;border:1px solid var(--cyan-line);background:var(--cyan-soft);color:var(--cyan);font-size:13px;letter-spacing:2px}
.hero h1{font-size:clamp(34px,5.2vw,58px);line-height:1.24;letter-spacing:1px;margin-top:26px;font-weight:800}
.hero p.lead{max-width:660px;margin:24px auto 0;color:var(--muted);font-size:17px}
.hero-actions{display:flex;gap:16px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.hero-chips{display:flex;gap:12px;justify-content:center;margin-top:46px;flex-wrap:wrap}
.chip{padding:8px 18px;border-radius:999px;border:1px solid var(--line);background:var(--panel);font-size:13px;color:var(--muted)}
.chip b{color:var(--txt);font-weight:700}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:66px}
.stat{padding:22px 12px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:.3s}
.stat:hover{border-color:var(--hov);transform:translateY(-3px)}
.stat b{display:block;font-size:27px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.4}
.stat span{font-size:13px;color:var(--muted)}

/* ---------------- 区块通用 ---------------- */
section.sec{padding:92px 0}
.sec-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;max-width:700px;margin:0 auto 54px}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);margin:18px 0 12px;font-weight:800}
.sec-head p{color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.center-btn{text-align:center;margin-top:38px}

/* ---------------- 卡片 ---------------- */
.card{position:relative;padding:30px 26px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:.3s;overflow:hidden}
.card:hover{transform:translateY(-5px);border-color:var(--hov);box-shadow:var(--shadow)}
.card .icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--cyan-soft);color:var(--cyan);margin-bottom:18px;flex-shrink:0}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}
.card ul{margin-top:12px;color:var(--muted);font-size:14.5px;list-style:none}
.card ul li{padding:4px 0 4px 20px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:14px;width:8px;height:8px;border-radius:2px;background:var(--grad)}

/* ---------------- 版本卡片 ---------------- */
.ver-card{padding:34px 28px;border-radius:var(--radius);border:1px solid var(--line);background:var(--ver-grad);display:flex;flex-direction:column;transition:.3s;position:relative;overflow:hidden}
.ver-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.ver-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--hov)}
.ver-badge{align-self:flex-start;font-size:12px;padding:4px 12px;border-radius:999px;background:var(--cyan-soft);border:1px solid var(--cyan-line);color:var(--cyan);letter-spacing:1px;margin-bottom:16px}
.ver-num{font-size:34px;font-weight:800;letter-spacing:1px;line-height:1.3}
.ver-card h3{font-size:20px;margin:6px 0 10px}
.ver-card .sub{color:var(--muted);font-size:13.5px;margin-bottom:8px}
.ver-card ul{flex:1;margin:12px 0 0;color:var(--muted);font-size:14.5px;list-style:none}
.ver-card ul li{padding:4px 0 4px 20px;position:relative}
.ver-card ul li::before{content:"";position:absolute;left:0;top:14px;width:8px;height:8px;border-radius:2px;background:var(--grad)}
.ver-card .btn{margin-top:22px;align-self:flex-start}

/* ---------------- 流程步骤 ---------------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{position:relative;padding:26px 16px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);text-align:center;transition:.3s}
.step:hover{transform:translateY(-4px);border-color:var(--hov)}
.step .num{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--grad);color:var(--btn-txt);font-weight:800;margin:0 auto 14px;font-size:15px}
.step h4{font-size:15.5px;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--muted)}

/* ---------------- 时间线（关于我们） ---------------- */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:36px}
.timeline::before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--cyan),var(--blue),transparent)}
.tl-item{position:relative;padding:0 0 34px 16px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-33px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--bg);border:3px solid var(--cyan);box-shadow:0 0 14px var(--tl-glow)}
.tl-item h4{font-size:17px}
.tl-item p{color:var(--muted);font-size:14.5px;margin-top:4px}

/* ---------------- 更新公告 ---------------- */
.ann{display:flex;flex-direction:column;gap:12px;max-width:820px;margin:0 auto}
.ann-item{display:flex;align-items:center;gap:16px;padding:18px 22px;border-radius:12px;background:var(--panel);border:1px solid var(--line);transition:.25s}
.ann-item:hover{border-color:var(--hov);transform:translateX(4px)}
.ann-tag{flex-shrink:0;font-size:12px;padding:4px 12px;border-radius:6px;background:var(--blue-soft);border:1px solid var(--tag-line);color:var(--tag-txt);white-space:nowrap}
.ann-item p{flex:1;color:var(--muted);font-size:14.5px}
.ann-item b{color:var(--txt)}

/* ---------------- FAQ ---------------- */
.faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 22px;transition:.25s}
.faq details[open]{border-color:var(--hov)}
.faq summary{cursor:pointer;font-weight:700;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--cyan);transition:.25s;flex-shrink:0}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin-top:10px;color:var(--muted);font-size:14.5px}

/* ---------------- 子页头 ---------------- */
.page-head{padding:158px 0 64px;text-align:center}
.page-head h1{font-size:clamp(30px,4vw,44px);font-weight:800}
.page-head p{color:var(--muted);margin-top:14px;max-width:620px;margin-left:auto;margin-right:auto}

/* ---------------- CTA 横幅 ---------------- */
.cta-band{padding:64px 8%;border-radius:24px;background:linear-gradient(120deg,var(--cyan-soft),var(--blue-soft),var(--cyan-soft));border:1px solid var(--cyan-line);text-align:center;position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px;font-weight:800}
.cta-band p{color:var(--muted);margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto}

/* ---------------- 联系页 ---------------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:20px}
.contact-card{padding:34px 22px;text-align:center;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:.3s}
.contact-card:hover{transform:translateY(-4px);border-color:var(--hov)}
.contact-card .icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--cyan-soft);color:var(--cyan);margin:0 auto 16px}
.contact-card h3{font-size:16px;margin-bottom:6px;color:var(--muted);font-weight:600}
.contact-card .val{font-size:17px;font-weight:700;color:var(--cyan);word-break:break-all}
.ph{color:var(--ph)!important}
.contact-form-wrap{max-width:760px;margin:56px auto 0;padding:38px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}
.contact-form-wrap h2{font-size:22px;margin-bottom:6px}
.contact-form-wrap>p{color:var(--muted);font-size:14.5px;margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;background:var(--input-bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--txt);font-size:14.5px;font-family:inherit;transition:.2s;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px var(--focus-ring)}
.field textarea{min-height:130px;resize:vertical}

/* ---------------- Toast ---------------- */
#toast{position:fixed;left:50%;bottom:36px;transform:translate(-50%,20px);background:var(--toast-bg);border:1px solid var(--toast-line);color:var(--txt);padding:14px 26px;border-radius:12px;font-size:14.5px;opacity:0;pointer-events:none;transition:.35s;z-index:200;box-shadow:var(--shadow);max-width:88%}
#toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------------- 页脚 ---------------- */
.site-footer{margin-top:60px;border-top:1px solid var(--line);background:var(--footer-bg)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:34px;padding:56px 0 40px}
.site-footer h4{font-size:15px;margin-bottom:16px;letter-spacing:1px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:10px}
.site-footer a,.site-footer p{color:var(--muted);font-size:14px}
.site-footer a:hover{color:var(--cyan)}
.footer-bar{border-top:1px solid var(--line);padding:18px 0;text-align:center;color:var(--note);font-size:12.5px}
.footer-bar .beian{display:block;margin-top:6px}
.footer-bar .beian a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.footer-bar .beian a:hover{color:var(--cyan)}

/* ---------------- 入场动画 ---------------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------------- 响应式 ---------------- */
@media (max-width:960px){
  .grid-3{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-toggle{display:flex}
  .nav-links{position:fixed;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;background:var(--nav-bg);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:18px 6% 26px;gap:18px;transform:translateY(-130%);transition:.35s;z-index:99}
  body.nav-open .nav-links{transform:none}
}
@media (max-width:640px){
  .grid-3,.grid-2,.steps,.contact-grid,.form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero{padding:140px 0 70px}
  section.sec{padding:70px 0}
  .ann-item{flex-direction:column;align-items:flex-start;gap:8px}
}

/* ---------------- 文章页 ---------------- */
.article-wrap{max-width:860px;margin:0 auto;background:var(--gall-bg);border:1px solid var(--line);border-radius:var(--radius);padding:46px 48px 38px}
.article-wrap h1{font-size:clamp(23px,3vw,31px);line-height:1.45;margin-bottom:10px}
.article-meta{color:var(--note);font-size:13px;margin-bottom:26px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.article-meta a{color:var(--cyan)}
.article-body h2{font-size:21px;margin:32px 0 12px;padding-left:12px;border-left:3px solid var(--cyan);line-height:1.5}
.article-body h3{font-size:17px;margin:24px 0 8px;color:var(--cyan)}
.article-body p{color:var(--muted);margin-bottom:13px;font-size:15px}
.article-body ul,.article-body ol{margin:0 0 14px 22px;color:var(--muted);font-size:15px}
.article-body li{margin-bottom:7px}
.article-body strong{color:var(--txt)}
.article-body blockquote{margin:16px 0;padding:14px 18px;border-left:3px solid var(--blue);background:var(--quote-bg);border-radius:0 10px 10px 0;color:var(--muted);font-size:14.5px}
.article-cta{margin-top:32px;padding:22px 24px;border-radius:12px;background:var(--cyan-soft);border:1px solid var(--cyan-line);font-size:14.5px;color:var(--muted)}
.article-cta b{color:var(--cyan)}
.article-nav{display:flex;justify-content:space-between;gap:14px;margin-top:26px;flex-wrap:wrap}
.article-nav a{color:var(--muted);font-size:14px}
.article-nav a:hover{color:var(--cyan)}
@media (max-width:640px){.article-wrap{padding:30px 20px}}

/* ---------------- 价格卡 ---------------- */
.price-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{text-align:center;padding:36px 22px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:.3s;position:relative}
.price-card:hover{transform:translateY(-5px);border-color:var(--hov);box-shadow:var(--shadow)}
.price-card.best{border-color:var(--hov);background:var(--price-best)}
.price-card .p-name{font-size:15px;color:var(--muted);margin-bottom:10px}
.price-card .p-num{font-size:34px;font-weight:800;line-height:1.3}
.price-card .p-num small{font-size:14px;font-weight:400;color:var(--muted)}
.price-card ul{list-style:none;margin:16px 0 0;color:var(--muted);font-size:13.5px;text-align:left}
.price-card ul li{padding:4px 0 4px 18px;position:relative}
.price-card ul li::before{content:"";position:absolute;left:0;top:13px;width:7px;height:7px;border-radius:2px;background:var(--grad)}
@media (max-width:960px){.price-cards{grid-template-columns:1fr}}

/* ---------------- 表格 ---------------- */
.tbl{width:100%;border-collapse:collapse;font-size:14px;margin:14px 0}
.tbl th,.tbl td{padding:10px 12px;border:1px solid var(--line);text-align:left}
.tbl th{background:var(--cyan-soft);color:var(--txt);font-weight:700}
.tbl td{color:var(--muted)}
.up{color:#dc2626;font-weight:700}
html[data-theme="dark"] .up{color:#f87171}
.down{color:#059669;font-weight:700}
html[data-theme="dark"] .down{color:#34d399}

/* ---------------- 下载按钮行 ---------------- */
.dl-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.dl-row .btn{padding:11px 22px;font-size:14px}

/* ---------------- 图片墙 ---------------- */
.gallery{margin:18px 0 6px}
.gallery summary{cursor:pointer;font-weight:700;font-size:15px;color:var(--cyan);display:flex;align-items:center;gap:8px;list-style:none}
.gallery summary::-webkit-details-marker{display:none}
.gallery summary::before{content:"+";font-size:18px;font-weight:800}
.gallery[open] summary::before{content:"−"}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:16px}
.gallery-grid a{display:block;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--gall-bg);transition:.25s}
.gallery-grid a:hover{border-color:var(--hov);box-shadow:var(--shadow)}
.gallery-grid img{display:block;width:100%;height:auto}