/* ============================================================
   pages.css — 子页面（购买 / 下载 / 更新日志）专用样式
   ============================================================ */

/* ---------- 通用页首 Hero（子页面轻量版） ---------- */
.page-hero{padding:80px 0 40px;text-align:center;position:relative}

/* 子页徽章：沿用首页 release-chip 的分段胶囊样式 */
.page-hero .badge{display:inline-flex;align-items:stretch;gap:0;padding:0;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);font-size:13px;color:var(--muted);
  margin-bottom:24px;overflow:hidden;position:relative;max-width:100%;text-transform:none;letter-spacing:0;font-weight:500}
.page-hero .badge::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,transparent 0%,rgba(0,230,231,.2) 50%,transparent 100%);
  transform:translateX(-100%);animation:chipShine 5s ease-in-out infinite}
.page-hero .badge .ic{display:inline-flex;align-items:center;justify-content:center;
  padding:6px 10px;background:var(--accent);color:#111;flex-shrink:0}
.page-hero .badge .ic svg{width:14px;height:14px;display:block}
.page-hero .badge .tx{padding:6px 14px;color:var(--text);display:inline-flex;align-items:center;
  gap:6px;white-space:nowrap;font-size:12.5px;letter-spacing:.04em;font-weight:600}
.page-hero .badge .tx b{color:var(--accent);font-weight:700;
  font-family:"JetBrains Mono","SF Mono",Consolas,monospace}
.page-hero h1{font-size:clamp(34px,5.5vw,60px);line-height:1.1;margin:0 0 18px;
  font-weight:800;letter-spacing:-.02em}
.page-hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.page-hero p{color:var(--muted);font-size:clamp(15px,2vw,18px);max-width:680px;margin:0 auto}

@media (max-width:640px){
  .page-hero{padding:40px 0 20px}
}

/* =========================================================
   Buy 页面
   ========================================================= */
.pricing{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:1000px;margin:0 auto}
.plan{position:relative;padding:40px 32px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);overflow:hidden;transition:.3s}
.plan:hover{transform:translateY(-4px);border-color:rgba(0,230,231,.35)}
.plan .glow{position:absolute;width:320px;height:320px;border-radius:50%;filter:blur(90px);
  opacity:.22;top:-120px;right:-120px;pointer-events:none}
.plan.personal .glow{background:var(--accent)}
.plan.business .glow{background:#5ea3ff}
.plan.recommended{border-color:rgba(0,230,231,.5);box-shadow:0 20px 50px -20px rgba(0,230,231,.35)}
.plan.recommended::before{content:"推荐";position:absolute;top:20px;right:20px;
  padding:5px 12px;border-radius:999px;background:var(--accent);color:#111;
  font-size:11px;font-weight:800;letter-spacing:.1em;z-index:2}

.plan-head{position:relative;z-index:1;margin-bottom:28px}
.plan-name{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);
  font-weight:700;margin-bottom:10px}
.plan-title{font-size:24px;font-weight:700;margin:0 0 10px}
.plan-desc{color:var(--muted);font-size:14.5px;margin:0}

.plan-price{position:relative;z-index:1;display:flex;align-items:baseline;gap:12px;
  flex-wrap:wrap;margin-bottom:8px}
.plan-price .currency{font-size:22px;font-weight:600;color:var(--text);align-self:flex-start;margin-top:10px}
.plan-price .num{font-size:56px;font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.02em}
.plan-price .period{color:var(--muted);font-size:14px}
.plan-price .original{color:var(--muted);font-size:15px;text-decoration:line-through;margin-left:4px}
.plan-save{position:relative;z-index:1;display:inline-block;padding:3px 10px;border-radius:6px;
  background:rgba(127,255,178,.1);color:#7effd8;font-size:12px;font-weight:600;margin-bottom:26px}

.plan-features{list-style:none;padding:0;margin:0 0 32px;position:relative;z-index:1}
.plan-features li{display:flex;align-items:flex-start;gap:10px;padding:9px 0;
  color:var(--text);font-size:14.5px;border-bottom:1px dashed var(--border)}
.plan-features li:last-child{border-bottom:none}
.plan-features svg{flex-shrink:0;width:18px;height:18px;margin-top:2px;color:var(--accent)}

.plan-cta{position:relative;z-index:1;display:flex;flex-direction:column;gap:8px}
.plan-cta .btn{justify-content:center;padding:14px 20px;font-size:15px}
.plan-note{color:var(--muted);font-size:12.5px;text-align:center;margin:0}

/* 许可证说明表 */
.license-table{max-width:900px;margin:0 auto;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;background:var(--surface)}
.license-table .row{display:grid;grid-template-columns:180px 1fr 1fr;gap:0;
  border-bottom:1px solid var(--border)}
.license-table .row:last-child{border-bottom:none}
.license-table .row.head{background:rgba(0,230,231,.06);font-weight:700;color:var(--text)}
.license-table .cell{padding:18px 20px;font-size:14.5px;color:var(--muted);
  border-right:1px solid var(--border)}
.license-table .cell:last-child{border-right:none}
.license-table .row .cell:first-child{color:var(--text);font-weight:600}
.license-table .row.head .cell{color:var(--accent)}

/* FAQ */
.faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:0;transition:.2s;overflow:hidden}
.faq details[open]{border-color:rgba(0,230,231,.35)}
.faq summary{padding:20px 24px;cursor:pointer;font-weight:600;font-size:15.5px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--accent);transition:.2s;font-weight:400}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details .body{padding:0 24px 22px;color:var(--muted);font-size:14.5px;line-height:1.75}
.faq details .body a{color:var(--accent)}

@media (max-width:780px){
  .pricing{grid-template-columns:1fr}
  .plan{padding:32px 24px}
  .license-table .row{grid-template-columns:1fr;border-bottom:1px solid var(--border)}
  .license-table .cell{border-right:none;border-bottom:1px solid var(--border);padding:12px 18px}
  .license-table .cell:last-child{border-bottom:none}
  .license-table .row.head{display:none}
  .license-table .cell::before{content:attr(data-label);display:block;color:var(--accent);
    font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:4px;font-weight:700}
}

/* =========================================================
   Download 页面
   ========================================================= */
.os-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1100px;margin:0 auto 60px}
.os-card{position:relative;padding:36px 30px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);transition:.3s;overflow:hidden;text-align:center}
.os-card:hover{transform:translateY(-4px);border-color:rgba(0,230,231,.35);
  box-shadow:0 20px 50px -20px rgba(0,230,231,.3)}
.os-card .os-icon{width:64px;height:64px;margin:0 auto 20px;display:grid;place-items:center;
  border-radius:18px;background:linear-gradient(135deg,rgba(0,230,231,.15),rgba(0,184,185,.15));
  border:1px solid var(--border)}
.os-card .os-icon svg{width:36px;height:36px;color:var(--accent)}
.os-card h3{margin:0 0 8px;font-size:22px;font-weight:700}
.os-card .os-sub{color:var(--muted);font-size:13.5px;margin:0 0 24px;min-height:36px}
.os-card .os-actions{display:flex;flex-direction:column;gap:10px}
.os-card .os-actions .btn{justify-content:center}
.os-card .os-extra{margin-top:14px;font-size:12.5px;color:var(--muted)}
.os-card .os-extra a{color:var(--accent)}

/* Linux 直链表 */
.linux-direct{max-width:900px;margin:0 auto;padding:32px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border)}
.linux-direct h3{margin:0 0 6px;font-size:18px;font-weight:700}
.linux-direct .hint{color:var(--muted);font-size:13.5px;margin:0 0 20px}
.linux-direct ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}
.linux-direct li{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  transition:.2s;border:1px solid transparent}
.linux-direct li:hover{background:var(--surface-2);border-color:var(--border)}
.linux-direct li a{color:var(--text);font-weight:600;font-size:14px;flex:1;
  font-family:"JetBrains Mono","SF Mono",Consolas,monospace}
.linux-direct li a:hover{color:var(--accent)}
.linux-direct li .meta{font-size:11.5px;color:var(--muted)}
.linux-direct li .meta a{font-family:inherit;font-weight:400;font-size:11.5px;color:var(--muted);margin:0 3px}
.linux-direct li .meta a:hover{color:var(--accent)}

.eval-note{margin-top:60px;padding:28px 32px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(0,230,231,.08),rgba(0,184,185,.08));
  border:1px solid rgba(0,230,231,.25);display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.eval-note svg{width:28px;height:28px;color:var(--accent);flex-shrink:0}
.eval-note p{margin:0;color:var(--text);font-size:14.5px;flex:1;min-width:260px}
.eval-note p b{color:var(--accent)}
.eval-note .btn{flex-shrink:0}

@media (max-width:960px){
  .os-grid{grid-template-columns:1fr;gap:18px}
  .linux-direct ul{grid-template-columns:1fr}
}
@media (max-width:560px){
  .linux-direct{padding:22px}
  .eval-note{padding:20px 22px;flex-direction:column;align-items:flex-start;text-align:left}
}

/* =========================================================
   Changelog 页面
   ========================================================= */
.timeline{max-width:900px;margin:0 auto;position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--accent) 0%,var(--accent-3) 40%,var(--border) 100%);border-radius:1px}

.release{position:relative;margin-bottom:56px}
.release:last-child{margin-bottom:0}
.release::before{content:"";position:absolute;left:-27px;top:10px;width:14px;height:14px;
  border-radius:50%;background:var(--bg);border:3px solid var(--accent);
  box-shadow:0 0 0 4px rgba(0,230,231,.15)}
.release.old::before{border-color:var(--muted);box-shadow:0 0 0 4px rgba(139,144,160,.12)}

.release-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:6px}
.release-head h2{margin:0;font-size:28px;font-weight:800;letter-spacing:-.01em}
.release-head .v-badge{padding:4px 10px;border-radius:6px;background:rgba(0,230,231,.1);
  border:1px solid rgba(0,230,231,.3);color:var(--accent);font-size:12px;font-weight:700;
  font-family:"JetBrains Mono",monospace;letter-spacing:.05em}
.release-head .v-latest{padding:4px 10px;border-radius:6px;background:var(--accent);color:#111;
  font-size:11px;font-weight:800;letter-spacing:.12em}
.release .date{color:var(--muted);font-size:13.5px;margin:0 0 18px;font-family:"JetBrains Mono",monospace}

.release .intro{padding:16px 20px;border-radius:12px;background:var(--surface);
  border-left:3px solid var(--accent);color:var(--muted);font-size:14.5px;line-height:1.75;margin-bottom:22px}
.release .intro a{color:var(--accent)}

.release .cat{margin-bottom:22px}
.release .cat:last-child{margin-bottom:0}
.release .cat-title{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;
  color:var(--text);margin:0 0 12px;letter-spacing:.03em;text-transform:uppercase}
.release .cat-title svg{width:18px;height:18px}
.release .cat.features .cat-title{color:var(--accent)}
.release .cat.features .cat-title svg{color:var(--accent)}
.release .cat.fixes .cat-title{color:#7effd8}
.release .cat.fixes .cat-title svg{color:#7effd8}

.release ul.changes{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.release ul.changes li{position:relative;padding:12px 16px 12px 40px;border-radius:10px;
  background:var(--surface);border:1px solid var(--border);color:var(--text);font-size:14.5px;
  line-height:1.65;transition:.2s}
.release ul.changes li:hover{border-color:rgba(0,230,231,.25);background:var(--surface-2)}
.release ul.changes li::before{content:"";position:absolute;left:16px;top:18px;width:8px;height:8px;
  border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(0,230,231,.12)}
.release .cat.fixes ul.changes li::before{background:#7effd8;box-shadow:0 0 0 3px rgba(127,255,178,.12)}
.release ul.changes li code,
.release ul.changes li .tag{display:inline-block;padding:2px 7px;margin:0 2px;border-radius:5px;
  background:#1c1f2b;border:1px solid var(--border);font-family:"JetBrains Mono",monospace;
  font-size:12.5px;color:var(--accent-2)}
.release ul.changes li a{color:var(--accent);font-weight:600}
.release ul.changes li .api{color:var(--accent-3);font-weight:700;margin-right:6px}

.release .mini{padding:18px 22px;border-radius:12px;background:var(--surface);border:1px solid var(--border);
  color:var(--muted);font-size:14px}
.release .mini a{color:var(--accent)}

@media (max-width:640px){
  .timeline{padding-left:24px}
  .timeline::before{left:6px}
  .release::before{left:-22px;width:11px;height:11px;border-width:2px}
  .release-head h2{font-size:22px}
  .release ul.changes li{padding:10px 14px 10px 34px;font-size:14px}
  .release ul.changes li::before{left:14px;top:15px}
}

/* =========================================================
   Support 页面
   ========================================================= */
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:1100px;margin:0 auto}
.support-card{position:relative;padding:36px 30px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);transition:.3s;overflow:hidden;text-align:center}
.support-card:hover{transform:translateY(-4px);border-color:rgba(0,230,231,.4);
  box-shadow:0 20px 50px -20px rgba(0,230,231,.28)}
.support-card .glow{position:absolute;width:260px;height:260px;border-radius:50%;filter:blur(80px);
  opacity:.2;top:-110px;right:-110px;pointer-events:none;background:var(--accent)}
.support-card.email .glow{background:#5ea3ff}
.support-card.phone .glow{background:#7effd8}
.support-card .ic{width:64px;height:64px;margin:0 auto 20px;display:grid;place-items:center;
  border-radius:18px;background:linear-gradient(135deg,rgba(0,230,231,.15),rgba(0,184,185,.15));
  border:1px solid var(--border);position:relative;z-index:1}
.support-card .ic svg{width:30px;height:30px;color:var(--accent)}
.support-card.email .ic{background:linear-gradient(135deg,rgba(94,163,255,.15),rgba(0,230,231,.1))}
.support-card.email .ic svg{color:#5ea3ff}
.support-card.phone .ic{background:linear-gradient(135deg,rgba(127,255,178,.15),rgba(0,230,231,.1))}
.support-card.phone .ic svg{color:#7effd8}
.support-card h3{margin:0 0 8px;font-size:20px;font-weight:700;position:relative;z-index:1}
.support-card .desc{color:var(--muted);font-size:14px;margin:0 0 22px;min-height:42px;position:relative;z-index:1}
.support-card .contact{display:block;font-family:"JetBrains Mono","SF Mono",Consolas,monospace;
  font-size:16px;font-weight:700;color:var(--text);margin-bottom:20px;position:relative;z-index:1;
  word-break:break-all}
.support-card .contact.big{font-size:22px;letter-spacing:.02em}
.support-card .btn{position:relative;z-index:1}
.support-card.email .contact{color:#5ea3ff}
.support-card.phone .contact{color:#7effd8}

/* 经销商说明 */
.reseller{max-width:1000px;margin:60px auto 0;padding:32px 36px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(0,230,231,.08),rgba(0,184,185,.06));
  border:1px solid rgba(0,230,231,.25);display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center}
.reseller .mark{width:96px;height:96px;display:grid;place-items:center;flex-shrink:0}
.reseller .mark img{width:100%;height:100%;object-fit:contain;display:block}
.reseller .copy-zh{font-size:15px;color:var(--text);line-height:1.8;margin:0 0 8px}
.reseller .copy-zh b{color:var(--accent)}
.reseller .copy-en{font-size:13px;color:var(--muted);line-height:1.7;margin:0}
.reseller .copy-en b{color:var(--accent-2)}

/* 快速信息 */
.info-list{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.info-list .item{padding:18px 22px;border-radius:12px;background:var(--surface);
  border:1px solid var(--border);display:flex;align-items:center;gap:14px}
.info-list .item svg{width:22px;height:22px;color:var(--accent);flex-shrink:0}
.info-list .item .k{color:var(--muted);font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;margin-bottom:2px}
.info-list .item .v{color:var(--text);font-weight:600;font-size:15px;
  font-family:"JetBrains Mono","SF Mono",Consolas,monospace}
.info-list .item .v a{color:inherit}
.info-list .item .v a:hover{color:var(--accent)}

@media (max-width:900px){
  .support-grid{grid-template-columns:1fr;gap:16px}
  .reseller{grid-template-columns:1fr;padding:24px 22px;gap:16px;text-align:center}
  .reseller .mark{margin:0 auto}
  .info-list{grid-template-columns:1fr}
}