/* ==========================================================================
   米折门户 · APP 下载落地页 (V6)
   与 design.css（整站设计系统）同源：同一套设计令牌与组件语汇
   落地位置：public/static/css/download.css，由 app/view/public/download.html 引用
   站群换肤：走 body.theme-*
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --brand:#ff4a1c; --brand-d:#e03a0e; --brand-l:#fff2ec; --brand-line:#ffd6c6;
  --gold:#ff9f0a; --gold-l:#fff8ea; --price:#ff3229;
  --ink:#0e1726; --ink2:#475467; --ink3:#98a2b3;
  --line:#eef1f5; --line2:#e4e9f0; --bg:#f5f7fa; --card:#fff;
  --r:14px; --r-sm:9px; --r-pill:999px;
  --sd:0 1px 3px rgba(16,24,40,.06),0 1px 2px rgba(16,24,40,.04);
  --sd-lg:0 18px 44px rgba(16,24,40,.14);
}
body.theme-blue  {--brand:#1677ff;--brand-d:#0958d9;--brand-l:#eef6ff;--brand-line:#b8dcff}
body.theme-green {--brand:#16a34a;--brand-d:#15803d;--brand-l:#f0fdf4;--brand-line:#bbf7d0}
body.theme-purple{--brand:#722ed1;--brand-d:#5b21b6;--brand-l:#f6f2ff;--brand-line:#ddc9f7}
body.theme-pink  {--brand:#eb2f96;--brand-d:#c41d7f;--brand-l:#fff0f6;--brand-line:#ffadd2}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;scroll-behavior:smooth}
body{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:14px;line-height:1.65;color:var(--ink2);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  padding-bottom:env(safe-area-inset-bottom);
}
img{display:block;max-width:100%;border:0}
a{text-decoration:none;color:inherit}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
em{font-style:normal}
svg{display:block}
.d-wrap{width:1000px;max-width:100%;margin:0 auto;padding:0 16px}

/* ---------- 3. 服务条 ---------- */
.d-top{background:#0e1726;color:#c6cedb;font-size:12px}
.d-top .d-wrap{display:flex;align-items:center;justify-content:space-between;height:38px;gap:12px}
.d-top .l{display:flex;align-items:center;gap:7px;min-width:0}
.d-top .dot{flex:none;width:6px;height:6px;border-radius:50%;background:#12b76a;box-shadow:0 0 0 3px rgba(18,183,106,.16)}
.d-top b{color:#fff;font-weight:500}
.d-top .r{display:flex;align-items:center;gap:16px;flex:none}
.d-top .r a{color:#c6cedb;transition:color .18s}
.d-top .r a:hover{color:#fff}

/* ---------- 4. Hero ---------- */
.d-hero{position:relative;overflow:hidden;color:#fff;
        background:linear-gradient(152deg,#ff6a3a 0%,var(--brand) 46%,var(--brand-d) 100%);
        padding:40px 0 74px;text-align:center}
.d-hero::before{content:"";position:absolute;inset:0;
        background-image:radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px);
        background-size:20px 20px;
        -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 72%);
        mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 72%)}
.d-hero::after{content:"";position:absolute;left:-8%;right:-8%;bottom:-1px;height:56px;
        background:var(--bg);border-radius:100% 100% 0 0}
.d-hero .d-wrap{position:relative;z-index:2}
.d-icon{width:76px;height:76px;margin:0 auto;border-radius:20px;overflow:hidden;
        background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);
        -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
        display:flex;align-items:center;justify-content:center;
        font-size:24px;font-weight:800;letter-spacing:1px;color:#fff;
        box-shadow:0 14px 32px rgba(0,0,0,.18)}
.d-icon img{width:100%;height:100%;object-fit:cover}
.d-hero h1{font-size:25px;line-height:1.32;font-weight:800;letter-spacing:-.2px;margin:16px 0 8px}
.d-hero .d-sub{font-size:13.5px;opacity:.92;max-width:520px;margin:0 auto}

/* CTA 按钮组 */
.d-cta{display:flex;justify-content:center;gap:12px;margin-top:26px;flex-wrap:wrap}
.d-btn{display:flex;align-items:center;gap:10px;min-width:186px;height:54px;padding:0 22px;
       border-radius:var(--r-pill);text-align:left;
       transition:transform .18s,box-shadow .18s,background .18s}
.d-btn:active{transform:scale(.975)}
.d-btn .d-btn-ic{flex:none;display:flex;align-items:center;justify-content:center}
.d-btn .d-btn-tx{display:flex;flex-direction:column;line-height:1.25}
.d-btn .d-btn-tx b{font-size:15px;font-weight:700;letter-spacing:.2px}
.d-btn .d-btn-tx small{font-size:11px;opacity:.72;margin-top:1px}
.d-btn.on{background:#fff;color:var(--brand);box-shadow:0 12px 30px rgba(0,0,0,.2)}
.d-btn.on:hover{box-shadow:0 16px 38px rgba(0,0,0,.26)}
.d-btn.off{border:1.5px solid rgba(255,255,255,.72);color:#fff;background:rgba(255,255,255,.12)}
.d-btn.off:hover{background:rgba(255,255,255,.22)}
.d-btn.off small{opacity:.8}
/* 设备匹配到的那个平台，按钮自动变成 .on（交由 JS 判定） */

.d-safe{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 18px;
        margin-top:20px;font-size:12px;opacity:.92}
.d-safe span{display:inline-flex;align-items:center;gap:5px}
.d-safe svg{opacity:.9}

/* ---------- 5. 微信内提示 ---------- */
.d-wx{display:none;background:#fff8e6;border:1px solid #ffe1a6;color:#8a5a00;
      border-radius:var(--r-sm);padding:11px 14px;font-size:12.5px;line-height:1.6;
      margin-top:14px;text-align:left;align-items:flex-start;gap:8px}
.d-wx.show{display:flex}
.d-wx svg{flex:none;margin-top:2px}
.d-wx b{color:#7a4d00}
.d-hero .d-wx{max-width:560px;margin-left:auto;margin-right:auto}

/* ---------- 6. 通用卡片 ---------- */
.d-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
        box-shadow:var(--sd);padding:22px;margin-top:16px}
.d-card > h2{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:700;
             color:var(--ink);margin-bottom:16px;letter-spacing:-.1px}
.d-card > h2::before{content:"";flex:none;width:4px;height:16px;border-radius:2px;
                     background:linear-gradient(var(--brand),var(--brand-d))}
.d-card > h2 small{font-weight:400;font-size:12px;color:var(--ink3);margin-left:2px}
.d-lead{font-size:13px;color:var(--ink3);line-height:1.75;margin:-6px 0 16px}

/* ---------- 7. 二维码卡（上浮） ---------- */
.d-float{margin-top:-56px;position:relative;z-index:3}
.d-qr{display:flex;align-items:center;gap:22px;padding:22px}
.d-qr-pic{flex:none;position:relative;width:124px;height:124px;border-radius:var(--r-sm);
          background:#fff;border:1px solid var(--line2);padding:6px}
.d-qr-pic img{width:100%;height:100%;object-fit:contain;border-radius:5px}
.d-qr-pic::before,.d-qr-pic::after{content:"";position:absolute;width:14px;height:14px;
          border:2px solid var(--brand);border-radius:3px}
.d-qr-pic::before{top:-5px;left:-5px;border-right:0;border-bottom:0}
.d-qr-pic::after{bottom:-5px;right:-5px;border-left:0;border-top:0}
.d-qr-ph{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;
         justify-content:center;gap:6px;background:var(--bg);border-radius:5px;
         color:var(--ink3);font-size:11px;line-height:1.4;text-align:center;padding:6px}
.d-qr-tx{flex:1;min-width:0}
.d-qr-tx h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:6px}
.d-qr-tx p{font-size:12.5px;color:var(--ink3);line-height:1.75}
.d-share{display:inline-flex;align-items:center;gap:6px;margin-top:13px;height:34px;padding:0 16px;
         border-radius:var(--r-pill);background:var(--brand-l);border:1px solid var(--brand-line);
         color:var(--brand);font-size:12.5px;font-weight:600;transition:background .18s}
.d-share:hover{background:#ffe7dd}

/* ---------- 8. 权益网格 ---------- */
.d-perks{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.d-perk{border:1px solid var(--line);border-radius:var(--r-sm);padding:15px 14px;
        background:linear-gradient(180deg,#fff,#fcfdff);transition:border-color .18s,box-shadow .18s}
.d-perk:hover{border-color:var(--brand-line);box-shadow:var(--sd)}
.d-tile{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
        background:var(--brand-l);color:var(--brand);margin-bottom:11px}
.d-tile.gold{background:var(--gold-l);color:#c47f00}
.d-perk b{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:3px}
.d-perk p{font-size:12px;color:var(--ink3);line-height:1.62}

/* ---------- 9. 网页版 vs APP 对比 ---------- */
.d-cmp{border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.d-cmp table{width:100%;border-collapse:collapse;font-size:13px}
.d-cmp th,.d-cmp td{padding:11px 14px;text-align:center;border-bottom:1px solid var(--line)}
.d-cmp th{background:#fafbfd;font-weight:600;color:var(--ink);font-size:12.5px}
.d-cmp th:first-child,.d-cmp td:first-child{text-align:left;color:var(--ink2)}
.d-cmp tr:last-child td{border-bottom:0}
.d-cmp .col-app{background:var(--brand-l);color:var(--brand);font-weight:700}
.d-cmp thead .col-app{background:linear-gradient(180deg,var(--brand),var(--brand-d));color:#fff}
.d-cmp td.col-app{font-weight:600}
.d-cmp .yes,.d-cmp .no{display:inline-flex;align-items:center;gap:4px;justify-content:center}
.d-cmp .no{color:var(--ink3)}
.d-cmp .col-app .yes{color:var(--brand)}
.d-cmp tbody tr:hover td{background:#fcfdff}
.d-cmp tbody tr:hover td.col-app{background:#fff0e9}

/* ---------- 10. 三步 ---------- */
.d-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.d-step{position:relative;border:1px solid var(--line);border-radius:var(--r-sm);padding:16px 15px;
        background:#fff}
.d-step-no{position:absolute;top:-10px;left:15px;height:22px;min-width:22px;padding:0 7px;
           border-radius:var(--r-pill);background:linear-gradient(135deg,var(--brand),var(--brand-d));
           color:#fff;font-size:12px;font-weight:700;
           display:inline-flex;align-items:center;justify-content:center;
           box-shadow:0 4px 10px rgba(255,74,28,.3)}
.d-step b{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin:8px 0 4px}
.d-step p{font-size:12px;color:var(--ink3);line-height:1.65}

/* ---------- 11. 常见问题 ---------- */
.d-faq{border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;background:#fff}
.d-faq details{border-bottom:1px solid var(--line)}
.d-faq details:last-child{border-bottom:0}
.d-faq summary{list-style:none;cursor:pointer;padding:13px 15px;font-size:13px;font-weight:600;
               color:var(--ink);display:flex;align-items:center;gap:9px;transition:background .16s}
.d-faq summary::-webkit-details-marker{display:none}
.d-faq summary:hover{background:#fafbfd}
.d-faq summary::after{content:"";margin-left:auto;width:7px;height:7px;flex:none;
                      border-right:1.6px solid var(--ink3);border-bottom:1.6px solid var(--ink3);
                      transform:rotate(45deg) translateY(-2px);transition:transform .2s}
.d-faq details[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.d-faq details[open] summary{color:var(--brand)}
.d-faq .d-ans{padding:0 15px 14px 37px;font-size:12.5px;color:var(--ink3);line-height:1.8}
.d-faq .d-ans b{color:var(--ink2);font-weight:600}
.d-q{flex:none;width:18px;height:18px;border-radius:5px;background:var(--brand-l);color:var(--brand);
     font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}

/* ---------- 12. 服务保障 ---------- */
.d-guard{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;text-align:center}
.d-guard div{padding:12px 8px;border-radius:var(--r-sm);background:#fafbfd;border:1px solid var(--line)}
.d-guard svg{margin:0 auto 7px;color:var(--brand)}
.d-guard b{display:block;font-size:12.5px;font-weight:600;color:var(--ink)}
.d-guard small{font-size:11.5px;color:var(--ink3)}

/* ---------- 13. 页脚 ---------- */
.d-foot{text-align:center;color:var(--ink3);font-size:12px;line-height:1.9;
        padding:26px 16px 34px}
.d-foot a{color:var(--ink2);text-decoration:underline;text-decoration-color:var(--line2);
          text-underline-offset:3px}
.d-foot a:hover{color:var(--brand)}
.d-foot .d-note{max-width:640px;margin:0 auto 10px}

/* ---------- 14. 移动端吸底下载条 ---------- */
.d-btm{position:fixed;left:0;right:0;bottom:0;z-index:60;
       display:flex;align-items:center;gap:11px;padding:9px 14px calc(9px + env(safe-area-inset-bottom));
       background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
       border-top:1px solid var(--line2);box-shadow:0 -6px 22px rgba(16,24,40,.08);
       transform:translateY(110%);transition:transform .26s ease}
.d-btm.show{transform:translateY(0)}
.d-btm .d-btm-logo{flex:none;width:38px;height:38px;border-radius:10px;overflow:hidden;
                   background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;
                   font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.d-btm .d-btm-logo img{width:100%;height:100%;object-fit:cover}
.d-btm .d-btm-tx{flex:1;min-width:0;line-height:1.3}
.d-btm .d-btm-tx b{display:block;font-size:13.5px;color:var(--ink)}
.d-btm .d-btm-tx small{font-size:11px;color:var(--ink3)}
.d-btm .d-btm-btn{flex:none;height:38px;padding:0 20px;border-radius:var(--r-pill);
                  background:linear-gradient(135deg,#ff6a3a,var(--brand));color:#fff;
                  font-size:13.5px;font-weight:700;display:flex;align-items:center;
                  box-shadow:0 8px 18px rgba(255,74,28,.3)}

/* ---------- 15. Toast ---------- */
.d-toast{position:fixed;left:50%;bottom:88px;transform:translate(-50%,14px);
         background:rgba(14,23,38,.92);color:#fff;font-size:13px;padding:11px 20px;
         border-radius:var(--r-pill);opacity:0;pointer-events:none;z-index:80;
         transition:opacity .22s,transform .22s;max-width:86vw;text-align:center}
.d-toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 16. 微信引导浮层 ---------- */
/* 遮罩要够暗：英雄区是白色大标题，太透的话字会透上来跟指引打架，读不清。
   backdrop-filter 在旧版 X5 上可能不生效，所以底色本身就压到位，不依赖模糊。 */
.d-sheet{position:fixed;inset:0;z-index:90;display:none;
         background:linear-gradient(180deg,rgba(10,17,29,.95),rgba(10,17,29,.90));
         -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.d-sheet.show{display:block}
.d-sheet .d-sheet-in{position:absolute;top:0;right:0;left:0;padding:22px;color:#fff;text-align:right}
.d-sheet .d-arrow{display:inline-block;font-size:38px;line-height:1;transform:rotate(-18deg);
                  color:#ffd666;animation:d-bounce 1.1s ease-in-out infinite}
@keyframes d-bounce{0%,100%{transform:rotate(-18deg) translateY(0)}50%{transform:rotate(-18deg) translateY(-8px)}}
.d-sheet p{font-size:15px;line-height:1.9;margin-top:8px}
.d-sheet p b{color:#ffd666}
.d-sheet .d-sheet-t1{font-size:16.5px;font-weight:600;line-height:1.5;margin-top:4px;margin-bottom:4px}
.d-sheet .d-sheet-tip{font-size:12.5px;opacity:.8;margin-top:10px}
/* 底部操作区：复制链接是微信里唯一 100% 可行的自救路径，所以放在拇指最容易够到的位置 */
.d-sheet .d-sheet-act{position:absolute;left:0;right:0;bottom:0;text-align:center;
                      padding:18px 22px calc(20px + env(safe-area-inset-bottom))}
.d-sheet .d-sheet-act button{display:inline-flex;align-items:center;gap:7px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.42);
  color:#fff;font-size:15px;-webkit-tap-highlight-color:transparent}
.d-sheet .d-sheet-act button:active{background:rgba(255,255,255,.26)}
.d-sheet .d-sheet-act svg{flex:none}

/* ---------- 17. 响应式 ---------- */
@media (max-width:960px){
  .d-perks{grid-template-columns:repeat(2,1fr)}
  .d-steps{grid-template-columns:repeat(3,1fr)}
  .d-guard{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  body{padding-bottom:64px}
  .d-top{font-size:11.5px}
  .d-top .l b{display:none}
  .d-hero{padding:30px 0 60px}
  .d-icon{width:66px;height:66px;border-radius:18px;font-size:21px}
  .d-hero h1{font-size:21px;margin-top:14px}
  .d-hero .d-sub{font-size:13px}
  .d-cta{flex-direction:column;align-items:stretch;margin-top:22px;gap:9px}
  .d-btn{width:100%;min-width:0;justify-content:center}
  .d-btn .d-btn-tx{text-align:center}
  .d-safe{gap:6px 14px;font-size:11.5px}
  .d-float{margin-top:-46px}
  .d-qr{flex-direction:column;text-align:center;gap:14px;padding:18px}
  .d-card{padding:17px 16px}
  .d-card > h2{font-size:16px}
  .d-cmp th,.d-cmp td{padding:9px 8px;font-size:12px}
  .d-steps{grid-template-columns:1fr;gap:18px}
  .d-step{padding:14px 15px}
  .d-faq .d-ans{padding-left:15px}
  .d-foot{padding-bottom:20px}
}
@media (max-width:380px){
  .d-perks{grid-template-columns:1fr}
  .d-hero h1{font-size:19px}
}

/* ---------- 18. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}