/* DEWA99 — Tiga Alam 三栏门面 (PFX=d9) · #251A38 卡雅殿紫 / #F4A259 香火橙金
   Fonts: Cardo + League Spartan · 母题: 机柜门面 / 云纹卷轴窗 / 符号星点 / 霓虹金光 */

:root {
  --d9-bg: #251A38;
  --d9-bg-deep: #1C1330;
  --d9-bg-soft: #2E2247;
  --d9-line: #3A2B5E;
  --d9-ac: #F4A259;
  --d9-ac-soft: #FFD9A0;
  --d9-ac-deep: #C97B3A;
  --d9-vio: #8B7FD6;
  --d9-tx: #F2ECFF;
  --d9-tx-dim: #C9BEE8;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--d9-bg);
  color: var(--d9-tx);
  font-family: "League Spartan", system-ui, sans-serif;
  font-size: 16.5px;
  line-height: 1.75;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--d9-ac); text-decoration: none; }
a:hover { color: var(--d9-ac-soft); }

h1, h2, h3, .d9-gatename, .d9-logo-word { font-family: "Cardo", Georgia, serif; font-weight: 700; line-height: 1.25; }

/* ---------- header ---------- */

.d9-head {
  background: linear-gradient(180deg, var(--d9-bg-deep), rgba(28, 19, 48, 0.92));
  border-bottom: 1px solid var(--d9-line);
  position: relative;
  z-index: 60;
}

.d9-headin {
  max-width: 1180px; margin: 0 auto; padding: 14px 22px;
  display: flex; align-items: center; gap: 26px;
}

.d9-logo { display: inline-flex; align-items: center; gap: 12px; }

.d9-logo-arch {
  display: inline-flex; gap: 5px; padding: 7px 12px;
  border: 2px solid var(--d9-ac); border-radius: 30px 30px 8px 8px;
  background: radial-gradient(circle at 50% 120%, #463268, var(--d9-bg-deep));
  box-shadow: 0 0 14px rgba(244, 162, 89, 0.35);
  font-style: normal; font-size: 13px; color: var(--d9-ac-soft);
}

.d9-logo-word { font-size: 24px; letter-spacing: 2.5px; color: var(--d9-tx); }

.d9-nav { margin-left: auto; display: flex; gap: 22px; }
.d9-nav a { color: var(--d9-tx-dim); font-weight: 500; letter-spacing: 0.4px; }
.d9-nav a:hover, .d9-nav a.d9-on { color: var(--d9-ac); }

.d9-hact { display: flex; gap: 10px; }

.d9-btn {
  display: inline-block; padding: 9px 20px; border-radius: 8px;
  font-weight: 700; font-size: 15px; letter-spacing: 0.5px;
  border: 1.6px solid transparent; cursor: pointer; font-family: inherit;
}
.d9-btn-main {
  background: linear-gradient(180deg, var(--d9-ac), var(--d9-ac-deep));
  color: #241435; border-color: var(--d9-ac-soft);
  box-shadow: 0 0 18px rgba(244, 162, 89, 0.4);
}
.d9-btn-main:hover { color: #120821; filter: brightness(1.08); }
.d9-btn-line { border-color: var(--d9-vio); color: var(--d9-tx); background: rgba(139, 127, 214, 0.08); }
.d9-btn-line:hover { border-color: var(--d9-ac); color: var(--d9-ac); }

/* burger */
.d9-burger { display: none; margin-left: auto; cursor: pointer; }
.d9-burger span { display: block; width: 24px; height: 2.5px; margin: 5px 0; background: var(--d9-ac); border-radius: 2px; }
.d9-navtog { display: none; }
.d9-mnav {
  display: none; padding: 6px 22px 18px; border-top: 1px dashed var(--d9-line);
  background: var(--d9-bg-deep);
}
.d9-mgrp h3 { color: var(--d9-ac); font-family: "League Spartan", sans-serif; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; margin: 14px 0 4px; }
.d9-mgrp a { display: block; padding: 6px 0; color: var(--d9-tx-dim); }
.d9-navtog:checked ~ .d9-mnav { display: block; }

/* ---------- 首页 hero：三天界门 ---------- */

.d9-main { max-width: 1180px; margin: 0 auto; padding: 0 22px; }

.d9-gatesec { padding: 46px 0 26px; }

.d9-kicker {
  display: inline-block; font-size: 12.5px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--d9-ac); border: 1px solid var(--d9-ac-deep); border-radius: 999px;
  padding: 5px 16px; background: rgba(244, 162, 89, 0.07);
}

.d9-herotop h1 { font-size: clamp(30px, 4.6vw, 52px); margin: 18px 0 14px; max-width: 900px; }
.d9-herotop h1::first-line { color: var(--d9-ac-soft); }

.d9-herop { max-width: 860px; color: var(--d9-tx-dim); font-size: 17.5px; }

.d9-heroact { display: flex; flex-wrap: wrap; gap: 14px; margin: 24px 0 10px; }

/* 三扇机柜门 */
.d9-gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 36px; }

.d9-gate {
  position: relative; display: flex; flex-direction: column;
  border: 2px solid var(--d9-line); border-radius: 26px 26px 12px 12px;
  background:
    radial-gradient(120% 60% at 50% -10%, rgba(139, 127, 214, 0.28), transparent 62%),
    linear-gradient(180deg, var(--d9-bg-soft), var(--d9-bg-deep));
  padding: 22px 20px 56px;
  box-shadow: inset 0 1px 0 rgba(255, 217, 160, 0.14), 0 14px 34px rgba(10, 6, 20, 0.5);
  overflow: hidden;
}
.d9-gate::before {
  content: ""; position: absolute; inset: 6px; border: 1px solid rgba(244, 162, 89, 0.22);
  border-radius: 20px 20px 8px 8px; pointer-events: none;
}
.d9-g-kahyangan { --d9-glow: rgba(139, 127, 214, 0.5); }
.d9-g-bumi { --d9-glow: rgba(244, 162, 89, 0.5); }
.d9-g-purbawisesa { --d9-glow: rgba(201, 123, 58, 0.45); }

.d9-gatetag {
  font-size: 11.5px; letter-spacing: 2.2px; text-transform: uppercase;
  color: var(--d9-ac); border-bottom: 1px dashed var(--d9-ac-deep); padding-bottom: 8px;
}
.d9-gatename { font-size: 25px; margin: 10px 0 14px; color: var(--d9-tx); }

/* 云纹卷轴窗 */
.d9-win {
  position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px;
  padding: 9px; border-radius: 12px; border: 2px solid var(--d9-line);
  background:
    repeating-radial-gradient(circle at 50% 120%, rgba(139, 127, 214, 0.16), rgba(139, 127, 214, 0.16) 2px, transparent 3px, transparent 13px),
    #150D26;
  box-shadow: inset 0 0 22px rgba(0, 0, 0, 0.65), 0 0 16px var(--d9-glow, rgba(139, 127, 214, 0.4));
  margin-bottom: 14px;
}
.d9-reelcol {
  list-style: none; display: flex; flex-direction: column; gap: 6px;
  border-radius: 8px; background: linear-gradient(180deg, rgba(46, 34, 71, 0.9), rgba(21, 13, 38, 0.9));
  border: 1px solid #2B1F49;
  overflow: hidden;
}
.d9-rsym {
  text-align: center; font-size: 21px; line-height: 1.15; padding: 9px 0 7px;
  color: var(--d9-ac-soft); font-weight: 700;
  text-shadow: 0 0 12px rgba(244, 162, 89, 0.55);
  border-bottom: 1px solid rgba(139, 127, 214, 0.16);
}
.d9-reelcol li:last-child { border-bottom: none; }

.d9-payline {
  position: absolute; left: 8px; right: 8px; top: 50%; height: 0;
  border-top: 2px dashed rgba(244, 162, 89, 0.65);
}

.d9-gatep { font-size: 15px; color: var(--d9-tx-dim); flex: 1; }

.d9-gatelink {
  position: absolute; left: 20px; right: 20px; bottom: 14px;
  text-align: center; padding: 9px 10px; border-radius: 8px;
  border: 1.4px solid var(--d9-ac-deep); color: var(--d9-ac-soft); font-weight: 600; font-size: 14.5px;
  background: rgba(244, 162, 89, 0.06);
}
.d9-gatelink:hover { background: rgba(244, 162, 89, 0.16); }

.d9-gateslot {
  position: absolute; right: 16px; top: 16px; width: 34px; height: 9px;
  border: 1.6px solid var(--d9-ac-deep); border-radius: 4px;
  box-shadow: inset 0 0 5px rgba(244, 162, 89, 0.4);
}

/* ---------- 每门内容段 ---------- */

.d9-sech { font-size: 32px; margin-bottom: 8px; color: var(--d9-ac-soft); }

.d9-doorwrap { padding: 40px 0 10px; }

.d9-door {
  display: grid; grid-template-columns: 120px 1fr; gap: 28px; align-items: start;
  padding: 28px 0; border-bottom: 1px solid rgba(58, 43, 94, 0.65);
}
.d9-door-rev { grid-template-columns: 1fr 120px; }
.d9-door-rev .d9-doorsym { order: 2; }

.d9-doorsym {
  width: 92px; height: 92px; display: grid; place-items: center;
  font-size: 40px; border: 2px solid var(--d9-line); border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--d9-bg-soft), var(--d9-bg-deep));
  box-shadow: 0 0 22px rgba(244, 162, 89, 0.28), inset 0 0 14px rgba(139, 127, 214, 0.3);
}

.d9-doortxt h2 { font-size: 26px; margin-bottom: 10px; }
.d9-doortxt p { color: var(--d9-tx-dim); margin-bottom: 10px; max-width: 780px; }

.d9-doorlink { font-weight: 600; display: inline-block; margin-top: 4px; }

/* ---------- 宇宙带通栏 ---------- */

.d9-cosmos {
  margin: 34px -22px 0; padding: 52px 22px 64px;
  background:
    radial-gradient(90% 120% at 20% 0%, rgba(139, 127, 214, 0.22), transparent 55%),
    radial-gradient(80% 120% at 85% 100%, rgba(244, 162, 89, 0.16), transparent 58%),
    repeating-radial-gradient(circle at 50% 230%, rgba(139, 127, 214, 0.12) 1px, transparent 2px, transparent 26px),
    var(--d9-bg-deep);
  border-top: 2px solid var(--d9-line); border-bottom: 2px solid var(--d9-line);
  position: relative; overflow: hidden;
}
.d9-cosmosin { max-width: 1080px; margin: 0 auto; position: relative; z-index: 2; text-align: center; }
.d9-cosmosin h2 { font-size: 30px; color: var(--d9-ac-soft); }
.d9-cosmosp { max-width: 720px; margin: 10px auto 22px; color: var(--d9-tx-dim); }

.d9-caprow { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; position: relative; z-index: 2; }
.d9-cap {
  padding: 9px 20px; border-radius: 999px; border: 1.4px solid var(--d9-ac-deep);
  color: var(--d9-ac-soft); font-weight: 600; font-size: 14.5px;
  background: rgba(37, 26, 56, 0.75);
}
.d9-cap:hover { background: var(--d9-bg-soft); }

.d9-starfield { position: absolute; inset: 0; pointer-events: none; }
.d9-star {
  position: absolute; font-size: 17px; color: var(--d9-ac-soft); opacity: 0.7;
  text-shadow: 0 0 12px rgba(244, 162, 89, 0.8);
  animation: d9-twinkle 3.4s ease-in-out infinite;
}
.d9-s0 { left: 8%; top: 18%; }
.d9-s1 { left: 24%; top: 68%; animation-delay: 0.6s; }
.d9-s2 { left: 45%; top: 12%; animation-delay: 1.2s; }
.d9-s3 { left: 63%; top: 74%; animation-delay: 1.8s; }
.d9-s4 { left: 80%; top: 22%; animation-delay: 2.4s; }
.d9-s5 { left: 91%; top: 56%; animation-delay: 3s; }

@keyframes d9-twinkle {
  0%, 100% { opacity: 0.25; transform: translateY(0); }
  50% { opacity: 0.9; transform: translateY(-6px); }
}

/* ---------- 叙述 / 优势 / 精选 / FAQ / 信任 ---------- */

.d9-about { padding: 46px 0 8px; }
.d9-about h2, .d9-adv h2, .d9-picks h2, .d9-faqsec h2, .d9-trust h2 {
  font-size: 30px; color: var(--d9-ac-soft); margin-bottom: 14px;
}
.d9-about p { color: var(--d9-tx-dim); max-width: 860px; margin-bottom: 14px; }

.d9-aboutfig { margin: 26px 0 8px; }
.d9-aboutfig img { border-radius: 16px; border: 1px solid var(--d9-line); box-shadow: 0 18px 44px rgba(8, 4, 18, 0.6); }
.d9-aboutfig figcaption, .d9-fig figcaption { font-size: 13.5px; color: var(--d9-tx-dim); padding-top: 8px; font-style: italic; }

.d9-adv { padding: 34px 0 6px; }
.d9-advlist { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.d9-advlist li {
  border: 1px solid var(--d9-line); border-radius: 14px; padding: 18px 20px;
  background: linear-gradient(180deg, rgba(46, 34, 71, 0.55), rgba(28, 19, 48, 0.55));
}
.d9-advlist h3 { color: var(--d9-ac); font-family: "League Spartan", sans-serif; font-size: 17px; margin-bottom: 6px; }
.d9-advlist p { font-size: 15px; color: var(--d9-tx-dim); }

.d9-picks { padding: 34px 0 6px; }
.d9-pickgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.d9-pick {
  display: flex; flex-direction: column; gap: 8px;
  border: 1.4px solid var(--d9-line); border-radius: 14px; padding: 20px;
  background: var(--d9-bg-deep);
  border-top: 3px solid var(--d9-ac);
}
.d9-pick h3 { font-size: 19px; }
.d9-pick h3 a { color: var(--d9-tx); }
.d9-pick h3 a:hover { color: var(--d9-ac-soft); }
.d9-pick p { font-size: 14.5px; color: var(--d9-tx-dim); flex: 1; }
.d9-pickmore { font-size: 14px; font-weight: 600; }

.d9-faqsec { padding: 34px 0 6px; }
.d9-q {
  border: 1px solid var(--d9-line); border-radius: 12px; margin-bottom: 10px;
  background: rgba(28, 19, 48, 0.65); overflow: hidden;
}
.d9-q summary {
  cursor: pointer; padding: 14px 18px; font-weight: 600; color: var(--d9-tx);
  list-style: none; position: relative; padding-right: 40px;
}
.d9-q summary::before {
  content: "✦"; position: absolute; right: 16px; top: 13px; color: var(--d9-ac); font-size: 15px;
}
.d9-q summary::-webkit-details-marker { display: none; }
.d9-q[open] summary { border-bottom: 1px dashed var(--d9-line); color: var(--d9-ac-soft); }
.d9-q p { padding: 12px 18px 16px; color: var(--d9-tx-dim); font-size: 15.5px; }

.d9-trust {
  margin: 38px 0 120px; border: 1.4px solid var(--d9-ac-deep); border-radius: 16px;
  padding: 26px 28px;
  background:
    radial-gradient(90% 140% at 15% 0%, rgba(244, 162, 89, 0.13), transparent 60%),
    var(--d9-bg-deep);
}
.d9-trust p { color: var(--d9-tx-dim); max-width: 880px; }
.d9-trustlnk { display: inline-block; margin-top: 12px; font-weight: 600; }

/* ---------- 内页 ---------- */

.d9-strip {
  display: flex; justify-content: center; gap: 26px; padding: 10px 0;
  border-bottom: 1px dashed var(--d9-line); color: var(--d9-ac);
  font-size: 17px; letter-spacing: 4px; text-shadow: 0 0 12px rgba(244, 162, 89, 0.5);
  background: rgba(28, 19, 48, 0.5);
}

.d9-paper { max-width: 900px; margin: 0 auto; padding: 30px 22px 120px; }

.d9-crumbs { font-size: 13.5px; color: var(--d9-tx-dim); margin-bottom: 18px; }
.d9-crumbs a { color: var(--d9-vio); }
.d9-crumbs a:hover { color: var(--d9-ac); }

.d9-navpage h1, .d9-edu h1 {
  font-size: clamp(26px, 3.6vw, 38px); margin-bottom: 14px; color: var(--d9-tx);
}
.d9-navintro, .d9-edulead { font-size: 17.5px; color: var(--d9-tx-dim); margin-bottom: 20px; }

.d9-navpage h2, .d9-edu h2 { font-size: 23px; color: var(--d9-ac-soft); margin: 26px 0 10px; }
.d9-navpage p, .d9-edu > p { color: var(--d9-tx-dim); margin-bottom: 12px; }

.d9-steps { list-style: none; counter-reset: d9step; display: grid; gap: 12px; }
.d9-steps li {
  counter-increment: d9step; position: relative; padding: 16px 18px 16px 62px;
  border: 1px solid var(--d9-line); border-radius: 12px; background: rgba(28, 19, 48, 0.6);
}
.d9-steps li::before {
  content: counter(d9step);
  position: absolute; left: 16px; top: 17px; width: 32px; height: 32px;
  display: grid; place-items: center; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--d9-ac), var(--d9-ac-deep));
  color: #241435; font-weight: 700; font-size: 15px;
  box-shadow: 0 0 12px rgba(244, 162, 89, 0.4);
}
.d9-steps h3 { font-family: "League Spartan", sans-serif; font-size: 16.5px; color: var(--d9-tx); margin-bottom: 3px; }
.d9-steps p { font-size: 15px; }

.d9-navlist { list-style: none; display: grid; gap: 8px; margin-bottom: 8px; }
.d9-navlist li {
  padding-left: 26px; position: relative; color: var(--d9-tx-dim); font-size: 15.5px;
}
.d9-navlist li::before { content: "🔔"; position: absolute; left: 2px; top: 3px; font-size: 12px; opacity: 0.85; }

.d9-note {
  border-left: 3px solid var(--d9-ac); background: rgba(244, 162, 89, 0.07);
  padding: 12px 16px; border-radius: 0 10px 10px 0; color: var(--d9-tx-dim); font-size: 15px;
  margin: 18px 0;
}

.d9-fig { margin: 22px 0; }
.d9-fig img { border-radius: 14px; border: 1px solid var(--d9-line); }
.d9-fig-lead { margin: 6px 0 22px; }

.d9-navaside {
  margin-top: 28px; border: 1px dashed var(--d9-line); border-radius: 12px;
  padding: 16px 20px; background: rgba(46, 34, 71, 0.3);
  display: grid; gap: 6px;
}
.d9-navaside h3 {
  font-family: "League Spartan", sans-serif; font-size: 13px; letter-spacing: 2px;
  text-transform: uppercase; color: var(--d9-ac); margin: 10px 0 2px;
}
.d9-navaside a { color: var(--d9-tx-dim); font-size: 15px; }
.d9-navaside a:hover { color: var(--d9-ac-soft); }

.d9-resp {
  margin-top: 26px; font-size: 13.5px; color: var(--d9-tx-dim);
  border-top: 1px dashed var(--d9-line); padding-top: 14px;
}

/* ---------- 404 ---------- */

.d9-404body { background: var(--d9-bg-deep); }
.d9-404 { max-width: 720px; margin: 0 auto; padding: 70px 22px 120px; text-align: center; }
.d9-404win {
  display: inline-flex; gap: 18px; padding: 16px 26px; margin-bottom: 20px;
  border: 2px solid var(--d9-line); border-radius: 14px; font-size: 30px; color: var(--d9-ac);
  background: #150D26; box-shadow: inset 0 0 26px rgba(0, 0, 0, 0.6);
}
.d9-404 h1 { font-size: 34px; margin-bottom: 12px; }
.d9-404 p { color: var(--d9-tx-dim); margin-bottom: 24px; }
.d9-404act { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* ---------- footer ---------- */

.d9-foot { border-top: 2px solid var(--d9-line); background: var(--d9-bg-deep); }
.d9-fgrid {
  max-width: 1180px; margin: 0 auto; padding: 40px 22px 10px;
  display: grid; grid-template-columns: 1.6fr 1fr 1.1fr 1fr; gap: 28px;
}
.d9-fbrand p { color: var(--d9-tx-dim); font-size: 14.5px; margin: 12px 0; max-width: 320px; }
.d9-18 {
  display: inline-block; border: 2px solid var(--d9-ac); color: var(--d9-ac);
  border-radius: 50%; width: 46px; height: 46px; line-height: 42px; text-align: center;
  font-weight: 700; font-size: 14px;
}
.d9-fcol h3 {
  font-family: "League Spartan", sans-serif; font-size: 13px; letter-spacing: 2px;
  text-transform: uppercase; color: var(--d9-ac); margin-bottom: 10px;
}
.d9-fcol a { display: block; color: var(--d9-tx-dim); font-size: 14.5px; padding: 3.5px 0; }
.d9-fbot {
  max-width: 1180px; margin: 0 auto; padding: 16px 22px 26px;
  border-top: 1px dashed var(--d9-line); color: var(--d9-tx-dim); font-size: 13.5px;
}

/* ---------- 底部悬浮条（唯一外链白名单） ---------- */

.d9-float {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  display: flex; justify-content: center; padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: linear-gradient(180deg, rgba(28, 19, 48, 0.1), rgba(21, 13, 38, 0.94) 40%);
  pointer-events: none;
}
.d9-floatin {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: center;
  border: 1.4px solid var(--d9-ac-deep); border-radius: 999px;
  background: rgba(21, 13, 38, 0.96); padding: 7px 8px 7px 18px;
  box-shadow: 0 0 26px rgba(244, 162, 89, 0.3);
  pointer-events: auto; max-width: 96vw;
}
.d9-jptag { font-size: 13.5px; color: var(--d9-tx-dim); letter-spacing: 0.5px; }
.d9-jptag b { font-style: normal; }
.d9-blink { font-style: normal; color: var(--d9-ac-soft); animation: d9-pulse 1.6s ease-in-out infinite; }
.d9-enter { padding: 9px 24px; }

@keyframes d9-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1024px) {
  .d9-gates { grid-template-columns: 1fr 1fr; }
  .d9-pickgrid { grid-template-columns: 1fr 1fr; }
  .d9-fgrid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .d9-nav, .d9-hact { display: none; }
  .d9-burger { display: inline-block; }
  .d9-gates { grid-template-columns: 1fr; }
  .d9-door { grid-template-columns: 1fr; gap: 14px; padding: 24px 0; }
  .d9-door-rev .d9-doorsym { order: 0; }
  .d9-advlist { grid-template-columns: 1fr; }
  .d9-cosmos { margin: 30px -22px 0; }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; }
  .d9-pickgrid { grid-template-columns: 1fr; }
  .d9-fgrid { grid-template-columns: 1fr; padding-top: 28px; }
  .d9-gatename { font-size: 22px; }
  .d9-heroact .d9-btn { width: 100%; text-align: center; }
  .d9-jptag { display: none; }
  .d9-floatin { padding-left: 8px; }
  .d9-doorsym { width: 72px; height: 72px; font-size: 30px; }
  .d9-cosmos { padding: 40px 16px 52px; }
}

@media (prefers-reduced-motion: reduce) {
  .d9-star, .d9-blink { animation: none; }
}