:root{
  --bg:#0b0d1a; --bg2:#12142a;
  --ink:#e9e4d6; --ink-soft:#b9b3a3;
  --paper:#f4ecd8; --paper-ink:#2a2419;
  --gold:#d9a441; --gold-soft:#f0c874;
  --cyan:#4fd6d6; --violet:#9b7dff; --rose:#ff8fa3;
  --line:rgba(217,164,65,.22);
  --card:rgba(255,255,255,.035);
  --card-brd:rgba(255,255,255,.09);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC","SimSun",serif;
  --sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
/* 关键：让 hidden 属性可靠隐藏元素，压过 .modal-mask/.awaken-stage 的 display:flex */
[hidden]{display:none!important}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans); color:var(--ink); min-height:100vh;
  background:
    radial-gradient(1200px 700px at 80% -10%, rgba(155,125,255,.18), transparent 60%),
    radial-gradient(900px 600px at 10% 10%, rgba(79,214,214,.12), transparent 55%),
    linear-gradient(160deg,var(--bg),var(--bg2));
  background-attachment:fixed;
  overflow-x:hidden;
}
.stars{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 70% 60%, rgba(255,255,255,.35), transparent),
    radial-gradient(1px 1px at 40% 80%, rgba(240,200,116,.4), transparent),
    radial-gradient(1px 1px at 90% 20%, rgba(155,125,255,.4), transparent),
    radial-gradient(1px 1px at 55% 15%, rgba(255,255,255,.3), transparent);
  opacity:.7;
}
.wrap{position:relative;z-index:1;max-width:1080px;margin:0 auto;padding:0 20px 60px}

/* 顶栏 */
.topbar{position:relative;z-index:2;max-width:1080px;margin:0 auto;padding:26px 20px 10px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:14px}
.brand-mark{width:52px;height:52px;border-radius:14px;flex:none;
  display:grid;place-items:center;font-family:var(--serif);font-size:28px;color:#1a1206;
  background:linear-gradient(150deg,var(--gold-soft),var(--gold));
  box-shadow:0 6px 22px rgba(217,164,65,.35),inset 0 0 0 1px rgba(255,255,255,.3)}
.brand-text h1{margin:0;font-size:22px;letter-spacing:.5px;font-weight:700}
.brand-text .dot{color:var(--gold);margin:0 4px}
.brand-text p{margin:3px 0 0;font-size:13px;color:var(--ink-soft)}

.mode-switch{position:relative;display:flex;background:rgba(0,0,0,.28);
  border:1px solid var(--card-brd);border-radius:999px;padding:4px}
.mode-btn{position:relative;z-index:2;border:0;background:transparent;color:var(--ink-soft);
  font-family:var(--sans);font-size:14px;font-weight:600;padding:8px 16px;border-radius:999px;cursor:pointer;transition:color .25s}
.mode-btn.active{color:#1a1206}
.mode-glider{position:absolute;z-index:1;top:4px;left:4px;height:calc(100% - 8px);
  border-radius:999px;background:linear-gradient(150deg,var(--gold-soft),var(--gold));
  box-shadow:0 4px 14px rgba(217,164,65,.4);transition:transform .3s cubic-bezier(.4,1.3,.5,1),width .3s}

.topbar-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.auth-box{display:flex;align-items:center;gap:8px}
.auth-btn{border:1px solid var(--card-brd);background:linear-gradient(150deg,var(--gold-soft),var(--gold));
  color:#1a1206;font-weight:700;font-size:14px;padding:8px 16px;border-radius:999px;cursor:pointer;transition:.18s}
.auth-btn.ghost{background:transparent;color:var(--ink);border-color:var(--card-brd)}
.auth-btn:hover{transform:translateY(-1px);filter:brightness(1.05)}
.user-badge{font-size:14px;color:var(--gold-soft);font-weight:700;padding:6px 12px;border-radius:999px;
  background:rgba(217,164,65,.12);border:1px solid rgba(217,164,65,.3)}
.streak-badge{font-size:14px;color:#ffdd8a;font-weight:800;padding:6px 12px;border-radius:999px;
  background:rgba(255,143,70,.14);border:1px solid rgba(255,143,70,.35);box-shadow:0 0 14px rgba(255,143,70,.18)}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;z-index:50;background:rgba(4,5,14,.7);backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;padding:20px}
.modal{position:relative;width:100%;max-width:380px;background:linear-gradient(160deg,#1a1c33,#141527);
  border:1px solid var(--card-brd);border-radius:20px;padding:26px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.modal-close{position:absolute;top:14px;right:14px;border:0;background:transparent;color:var(--ink-soft);font-size:18px;cursor:pointer}
.modal-tabs{display:flex;gap:6px;background:rgba(0,0,0,.3);border-radius:12px;padding:4px;margin-bottom:18px}
.mtab{flex:1;border:0;background:transparent;color:var(--ink-soft);font-weight:700;font-size:15px;padding:9px;border-radius:9px;cursor:pointer}
.mtab.active{background:linear-gradient(150deg,var(--gold-soft),var(--gold));color:#1a1206}
.auth-form .fld{margin-bottom:14px}
.auth-form label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px}
.auth-form input{width:100%;border-radius:11px;border:1px solid var(--card-brd);background:rgba(0,0,0,.28);
  color:var(--ink);font-size:15px;padding:11px 13px;font-family:var(--sans)}
.auth-form input:focus{outline:none;border-color:var(--gold)}
.reg-only{display:none}
.modal.mode-register .reg-only{display:block}
.auth-err{color:var(--rose);font-size:13.5px;min-height:18px;margin:2px 0 8px}
.auth-submit{width:100%;border:0;cursor:pointer;padding:13px;border-radius:12px;font-size:16px;font-weight:800;color:#1a1206;
  background:linear-gradient(150deg,var(--gold-soft),var(--gold))}
.auth-submit:disabled{filter:grayscale(.4);cursor:wait}
.auth-hint{font-size:12px;color:var(--ink-soft);margin:14px 0 0;line-height:1.6;text-align:center}

/* 面板通用 */
.panel{background:var(--card);border:1px solid var(--card-brd);border-radius:20px;
  padding:22px;margin-top:22px;backdrop-filter:blur(6px);
  box-shadow:0 10px 40px rgba(0,0,0,.28)}
.panel-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.panel-head h2{margin:0;font-size:19px;font-weight:700}
.stage-tag{font-size:12px;font-weight:700;letter-spacing:1px;color:#1a1206;
  background:linear-gradient(150deg,var(--gold-soft),var(--gold));padding:4px 11px;border-radius:999px}

/* 输入区 */
.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.fld-label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:8px}
#textInput{width:100%;min-height:150px;resize:vertical;border-radius:14px;
  border:1px solid var(--card-brd);background:rgba(0,0,0,.25);color:var(--ink);
  font-family:var(--serif);font-size:17px;line-height:1.8;padding:14px}
#textInput:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(217,164,65,.18)}
.dropzone{position:relative;height:150px;border:1.5px dashed var(--line);border-radius:14px;
  background:rgba(0,0,0,.18);cursor:pointer;overflow:hidden;transition:.2s}
.dropzone.drag,.dropzone:hover{border-color:var(--gold);background:rgba(217,164,65,.08)}
.dz-inner{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;text-align:center;color:var(--ink-soft)}
.dz-icon{font-size:30px}
.dz-inner p{margin:2px 0;font-size:15px;color:var(--ink)}
.dz-inner span{font-size:12px}
.preview{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#000;display:none}
.preview-clear{position:absolute;top:8px;right:8px;display:none;border:0;cursor:pointer;
  width:26px;height:26px;border-radius:50%;background:rgba(0,0,0,.6);color:#fff;font-size:13px}
.dropzone.has-img .preview,.dropzone.has-img .preview-clear{display:block}
.dropzone.has-img .dz-inner{display:none}

.samples{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:16px 0 4px}
.samples-label{font-size:13px;color:var(--ink-soft)}
.chip{border:1px solid var(--card-brd);background:rgba(255,255,255,.04);color:var(--ink);
  font-family:var(--sans);font-size:13px;padding:6px 12px;border-radius:999px;cursor:pointer;transition:.18s}
.chip:hover{border-color:var(--gold);color:var(--gold-soft);transform:translateY(-1px)}

/* VIP 权益展示 */
.vip-promo{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0 0 18px;
  padding:14px 16px;border-radius:16px;border:1px solid rgba(240,200,116,.3);
  background:linear-gradient(120deg,rgba(217,164,65,.13),rgba(155,125,255,.08));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.03)}
.vip-promo.active{border-color:var(--gold);box-shadow:0 0 24px rgba(217,164,65,.18),inset 0 0 0 1px rgba(255,255,255,.08)}
.vip-promo-main{display:flex;align-items:center;gap:12px}
.vip-crown{width:42px;height:42px;flex:none;border-radius:13px;display:grid;place-items:center;font-size:22px;
  background:rgba(240,200,116,.16);border:1px solid rgba(240,200,116,.35)}
.vip-promo h3{margin:0 0 3px;font-size:16px;color:var(--gold-soft)}
.vip-promo p{margin:0;font-size:13px;color:var(--ink-soft);line-height:1.6}
.vip-state{flex:none;font-size:13px;font-weight:800;color:#1a1206;background:linear-gradient(150deg,var(--gold-soft),var(--gold));
  padding:7px 12px;border-radius:999px}

.vip-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.vip-open{border:1px solid rgba(240,200,116,.35);background:rgba(0,0,0,.22);color:var(--gold-soft);
  padding:7px 12px;border-radius:999px;cursor:pointer;font-weight:800;font-size:13px}
.vip-open:hover{border-color:var(--gold);transform:translateY(-1px)}
.vip-pay-card{background:rgba(217,164,65,.1);border:1px solid rgba(217,164,65,.28);border-radius:14px;padding:14px;margin-bottom:14px}
.vip-price{display:flex;align-items:flex-end;justify-content:space-between;gap:10px;margin-bottom:10px}
.vip-price b{font-size:22px;color:var(--gold-soft)}
.vip-price span{font-size:12px;color:var(--ink-soft)}
.vip-pay-card ul{margin:0;padding-left:20px;color:var(--ink-soft);font-size:13px;line-height:1.8}

.library-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.sample-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.sample-card{border:1px solid var(--card-brd);background:rgba(0,0,0,.18);color:var(--ink);text-align:left;
  padding:12px 13px;border-radius:13px;cursor:pointer;transition:.18s;font-family:var(--sans)}
.sample-card:hover{transform:translateY(-2px);border-color:var(--gold);background:rgba(217,164,65,.08)}
.sample-card b{display:block;font-size:14px;color:var(--ink);margin-bottom:5px}
.sample-card span{font-size:12px;color:var(--gold-soft)}

/* 游客提示 */
.guest-banner{display:none;font-size:13.5px;line-height:1.7;color:var(--gold-soft);
  background:rgba(217,164,65,.1);border:1px solid rgba(217,164,65,.28);border-radius:12px;padding:11px 14px;margin-bottom:16px}
body.is-guest .guest-banner{display:block}
.guest-banner a{color:#fff;font-weight:700;text-decoration:underline;cursor:pointer}
.guest-note{font-size:13px;color:var(--cyan);min-height:1px;margin:8px 2px 0}

/* 会员功能锁 */
.member-lock{display:none;position:absolute;inset:0;z-index:5;border-radius:20px;
  background:rgba(10,12,24,.72);backdrop-filter:blur(3px);
  flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:20px}
body.is-guest .ask-card .member-lock{display:flex}
.member-lock .ml-ic{font-size:34px}
.member-lock p{margin:0;font-size:15px;color:var(--ink);max-width:320px;line-height:1.7}
.ask-card{position:relative}

.awaken-btn{position:relative;width:100%;margin-top:18px;border:0;cursor:pointer;
  padding:16px;border-radius:16px;overflow:hidden;
  background:linear-gradient(120deg,#6b4bd6,#b23c7e,#d9a441);
  color:#fff;font-size:17px;font-weight:800;letter-spacing:2px;
  box-shadow:0 10px 30px rgba(155,60,126,.35)}
.awaken-btn:hover{filter:brightness(1.08)}
.awaken-btn:disabled{filter:grayscale(.5) brightness(.7);cursor:wait}
.ab-glow{position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  transform:translateX(-100%);animation:sweep 2.4s infinite}
@keyframes sweep{60%,100%{transform:translateX(100%)}}
.ab-text{position:relative}
.err-line{color:var(--rose);font-size:14px;margin:12px 2px 0;min-height:1px}

/* 唤醒动画 */
.awaken-stage{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:60px 0}
.portal{position:relative;width:160px;height:160px}
.ring{position:absolute;inset:0;border-radius:50%;border:2px solid transparent}
.r1{border-top-color:var(--gold);border-right-color:var(--gold);animation:spin 1.6s linear infinite}
.r2{inset:18px;border-bottom-color:var(--cyan);border-left-color:var(--cyan);animation:spin 2.2s linear infinite reverse}
.r3{inset:36px;border-top-color:var(--violet);border-left-color:var(--violet);animation:spin 1.2s linear infinite}
.portal-core{position:absolute;inset:52px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--serif);font-size:34px;color:#1a1206;
  background:radial-gradient(circle,var(--gold-soft),var(--gold));
  box-shadow:0 0 40px rgba(217,164,65,.6);animation:pulse 1.8s ease-in-out infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{50%{transform:scale(1.08)}}
.awaken-status{font-size:16px;color:var(--gold-soft);letter-spacing:1px}

/* 结果卡片 */
.rcard{background:var(--card);border:1px solid var(--card-brd);border-radius:20px;padding:22px;margin-top:20px;
  opacity:0;transform:translateY(24px) scale(.98);animation:rise .7s forwards;
  box-shadow:0 10px 40px rgba(0,0,0,.28)}
@keyframes rise{to{opacity:1;transform:none}}
.rcard .panel-head{margin-bottom:14px}

/* 阶段一 纠错 */
.corrected-text{font-family:var(--serif);font-size:20px;line-height:2.1;color:var(--paper-ink);
  background:linear-gradient(180deg,#f7efdc,#efe4c9);border-radius:14px;padding:20px 22px;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.06);position:relative}
.corrected-text::before{content:"整理稿";position:absolute;top:-10px;left:16px;font-size:12px;
  background:var(--gold);color:#1a1206;padding:2px 10px;border-radius:8px;font-family:var(--sans);font-weight:700}
.fix-summary{font-size:13.5px;color:var(--ink-soft);margin:14px 0 10px}
.fix-notes{display:flex;flex-wrap:wrap;gap:8px}
.fix-note{font-size:13px;background:rgba(79,214,214,.1);border:1px solid rgba(79,214,214,.3);
  color:#bff0f0;padding:5px 10px;border-radius:10px}
.fix-note b{color:#fff}
.fix-note .arrow{color:var(--gold-soft);margin:0 5px}
.fix-note .reason{color:var(--ink-soft);margin-left:6px;font-size:11.5px}

/* 年代背景 */
.era-band{display:flex;gap:14px;align-items:flex-start;background:rgba(155,125,255,.08);
  border:1px solid rgba(155,125,255,.25);border-radius:14px;padding:14px 16px;margin-top:4px}
.era-band .era-ic{font-size:24px}
.era-band h3{margin:0 0 4px;font-size:15px;color:var(--violet)}
.era-band p{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.7}

/* 作者自白 */
.author-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.author-avatar{width:56px;height:56px;flex:none;border-radius:50%;display:grid;place-items:center;
  font-family:var(--serif);font-size:24px;color:#1a1206;
  background:radial-gradient(circle at 30% 30%,var(--gold-soft),var(--gold));
  box-shadow:0 0 24px rgba(217,164,65,.4)}
.author-meta h3{margin:0;font-size:18px}
.author-meta span{font-size:13px;color:var(--ink-soft)}
.monologue{font-family:var(--serif);font-size:17px;line-height:2;color:var(--ink);
  border-left:3px solid var(--gold);padding:6px 0 6px 18px;position:relative}
.monologue::before{content:"“";font-family:var(--serif);font-size:46px;color:var(--gold);
  opacity:.4;position:absolute;left:8px;top:-10px}

/* 圆桌辩论 */
.round-list{display:flex;flex-direction:column;gap:14px}
.bubble{max-width:82%;padding:13px 16px;border-radius:16px;font-size:15px;line-height:1.75;position:relative}
.bubble .who{display:block;font-size:12px;font-weight:700;margin-bottom:5px;opacity:.9}
.b-author{align-self:flex-start;background:rgba(217,164,65,.12);border:1px solid rgba(217,164,65,.32);border-top-left-radius:4px}
.b-author .who{color:var(--gold-soft)}
.b-advisor{align-self:flex-end;background:rgba(79,214,214,.1);border:1px solid rgba(79,214,214,.32);border-top-right-radius:4px}
.b-advisor .who{color:var(--cyan)}
.b-guest{align-self:flex-start;background:rgba(155,125,255,.12);border:1px solid rgba(155,125,255,.32);border-top-left-radius:4px;margin-left:24px}
.b-guest .who{color:var(--violet)}

/* 概念标签 */
.concepts{display:flex;flex-wrap:wrap;gap:9px;margin-top:6px}
.concept-tag{font-family:var(--serif);font-size:15px;padding:7px 14px;border-radius:12px;
  background:linear-gradient(120deg,rgba(217,164,65,.15),rgba(155,125,255,.15));
  border:1px solid var(--card-brd);color:var(--gold-soft)}

/* 产出卡 */
.out-list{display:grid;gap:14px}
.out-item{background:rgba(0,0,0,.22);border:1px solid var(--card-brd);border-left:3px solid var(--gold);
  border-radius:12px;padding:15px 16px}
.out-item h4{margin:0 0 6px;font-size:16px;color:var(--gold-soft)}
.out-item p{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.7}

/* VIP 徽章与专享卡 */
.user-badge.vip{background:linear-gradient(120deg,rgba(240,200,116,.25),rgba(217,164,65,.35));
  border-color:var(--gold);color:var(--gold-soft);box-shadow:0 0 14px rgba(217,164,65,.4)}
.vip-card{border:1px solid rgba(240,200,116,.5)!important;
  background:linear-gradient(160deg,rgba(217,164,65,.12),rgba(155,125,255,.06))!important;
  box-shadow:0 0 30px rgba(217,164,65,.18),0 10px 40px rgba(0,0,0,.3)!important}
.vip-card .stage-tag{background:linear-gradient(120deg,#f0c874,#d9a441)}
.vip-body{display:flex;flex-direction:column;gap:14px}
.vip-sec h4{margin:0 0 6px;font-size:15px;color:var(--gold-soft)}
.vip-sec p{margin:0;font-size:14.5px;line-height:1.8;color:var(--ink)}
.vip-ul{margin:0;padding-left:20px}
.vip-ul li{font-size:14.5px;line-height:1.8;color:var(--ink)}
.vip-read{background:rgba(0,0,0,.2);border:1px solid var(--card-brd);border-radius:10px;padding:10px 13px;margin-bottom:8px}
.vip-read b{color:var(--gold-soft)}
.vip-read span{display:block;font-size:13px;color:var(--ink-soft);margin-top:3px}
.vip-epi{margin:4px 0 0;font-family:var(--serif);font-size:15px;color:var(--gold-soft);text-align:center;font-style:italic}

/* 研学火花 */
.streak-result{border-color:rgba(255,143,70,.45)!important;background:linear-gradient(130deg,rgba(255,143,70,.14),rgba(217,164,65,.08))!important}
.streak-card{display:flex;align-items:center;gap:16px}
.streak-flame{width:56px;height:56px;border-radius:18px;display:grid;place-items:center;font-size:34px;background:rgba(255,143,70,.15);border:1px solid rgba(255,143,70,.35);animation:pulse 1.8s ease-in-out infinite}
.streak-card h3{margin:0 0 4px;color:#ffdd8a;font-size:22px}
.streak-card p{margin:0;color:var(--ink-soft);line-height:1.7}

/* mermaid */
.mermaid-box{background:#faf6ea;border-radius:14px;padding:18px;overflow:auto;text-align:center}
.mermaid-box svg{max-width:100%;height:auto}
.mermaid-fallback{font-family:ui-monospace,monospace;font-size:12px;color:#333;
  white-space:pre-wrap;text-align:left;background:#f0e9d8;padding:12px;border-radius:8px}

/* 追问 */
.ask-tabs{display:flex;gap:8px;margin-bottom:12px}
.ask-tab{border:1px solid var(--card-brd);background:rgba(255,255,255,.04);color:var(--ink-soft);
  padding:7px 14px;border-radius:999px;cursor:pointer;font-size:14px;font-weight:600}
.ask-tab.active{color:#1a1206;background:linear-gradient(150deg,var(--gold-soft),var(--gold))}
.chatlog{display:flex;flex-direction:column;gap:12px;margin-bottom:14px;max-height:420px;overflow-y:auto;padding-right:4px}
.msg{max-width:85%;padding:11px 15px;border-radius:14px;font-size:14.5px;line-height:1.7}
.msg.user{align-self:flex-end;background:rgba(255,255,255,.08);border:1px solid var(--card-brd)}
.msg.bot{align-self:flex-start;font-family:var(--serif);font-size:15.5px}
.msg.bot.author{background:rgba(217,164,65,.12);border:1px solid rgba(217,164,65,.3)}
.msg.bot.advisor{background:rgba(79,214,214,.1);border:1px solid rgba(79,214,214,.3)}
.msg .who{display:block;font-size:11.5px;font-weight:700;margin-bottom:4px;opacity:.85;font-family:var(--sans)}
.msg.typing{opacity:.7;font-style:italic}
.quick-qs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.ask-row{display:flex;gap:10px}
.ask-row input{flex:1;border-radius:12px;border:1px solid var(--card-brd);background:rgba(0,0,0,.25);
  color:var(--ink);font-size:15px;padding:12px 14px;font-family:var(--sans)}
.ask-row input:focus{outline:none;border-color:var(--gold)}
.ask-send{border:0;cursor:pointer;padding:0 20px;border-radius:12px;font-weight:700;color:#1a1206;
  background:linear-gradient(150deg,var(--gold-soft),var(--gold))}
.ask-send:disabled{filter:grayscale(.5);cursor:wait}

/* 导出 & 复位 */
.actions-bar{display:flex;gap:12px;justify-content:center;margin-top:26px;flex-wrap:wrap}
.act-btn{border:1px solid var(--card-brd);background:rgba(255,255,255,.05);color:var(--ink);
  padding:12px 22px;border-radius:12px;cursor:pointer;font-size:15px;font-weight:600;transition:.18s}
.act-btn.primary{border-color:var(--gold);color:var(--gold-soft)}
.act-btn:hover{transform:translateY(-1px);border-color:var(--gold)}

.foot{position:relative;z-index:1;text-align:center;color:var(--ink-soft);font-size:12.5px;
  padding:26px 20px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.foot-sep{opacity:.4}

@media(max-width:720px){
  .input-grid{grid-template-columns:1fr}
  .brand-text h1{font-size:18px}
  .bubble{max-width:92%}
  .sample-grid{grid-template-columns:1fr}
  .vip-promo{align-items:flex-start;flex-direction:column}
}