/* ==========================================================================
   域名展示页 · 样式表
   设计基调：深空蓝底 + 香槟金点缀，卡片玻璃质感，全站响应式
   ========================================================================== */

:root {
  --bg: #f4f7fb;
  --bg-2: #e9eff8;
  --bg-3: #dfe8f5;
  --panel: rgba(13, 45, 98, .04);
  --panel-strong: rgba(13, 45, 98, .07);
  --line: rgba(15, 45, 90, .12);
  --line-strong: rgba(15, 45, 90, .22);
  --text: #17233b;
  --text-2: #4a5872;
  --text-3: #7d8aa3;
  --gold: #1f66e0;
  --gold-2: #2f7bff;
  --gold-deep: #1747a8;
  --cyan: #5fd0d8;
  --green: #58c07c;
  --red: #ff6b6b;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px rgba(23, 43, 77, .16);
  --maxw: 1200px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
ul, ol { list-style: none; }

::selection { background: var(--gold); color: #ffffff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #e8eef7; }
::-webkit-scrollbar-thumb { background: #b9c7dd; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

.mono {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  letter-spacing: .01em;
}

/* ============================== 顶部导航 ============================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 80;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, .78);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-stuck {
  background: rgba(255, 255, 255, .96);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--gold-2), var(--gold-deep));
  color: #ffffff;
  display: grid; place-items: center;
  font-weight: 800; font-size: 18px;
  box-shadow: 0 6px 18px rgba(31, 102, 224, .28);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text b { font-size: 16px; letter-spacing: .5px; }
.logo-text span { font-size: 11px; color: var(--text-3); letter-spacing: 2px; }

.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a {
  font-size: 15px; color: var(--text-2); position: relative; padding: 6px 0;
  transition: color .25s var(--ease);
}
.nav a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-deep));
  transition: width .3s var(--ease);
}
.nav a:hover { color: var(--gold-2); }
.nav a:hover::after { width: 100%; }

.header-cta { display: flex; gap: 10px; flex-shrink: 0; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 999px;
  font-size: 15px; font-weight: 600; white-space: nowrap;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
    background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold-2), var(--gold-deep));
  color: #ffffff;
  box-shadow: 0 8px 22px rgba(31, 102, 224, .25);
}
.btn-gold:hover { box-shadow: 0 12px 28px rgba(31, 102, 224, .38); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-2); background: rgba(31, 102, 224, .08); }
.btn-sm { padding: 7px 14px; font-size: 13px; }

/* ============================== Hero ============================== */
.hero {
  position: relative;
  padding: 150px 0 90px;
  background:
    radial-gradient(900px 520px at 18% 8%, rgba(31, 102, 224, .16), transparent 60%),
    radial-gradient(760px 460px at 88% 22%, rgba(95, 208, 216, .13), transparent 62%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 62%, var(--bg) 100%);
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(15, 45, 90, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 45, 90, .05) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(760px 520px at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(760px 520px at 50% 30%, #000 20%, transparent 78%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; max-width: 900px; margin: 0 auto; text-align: center; }

.badge-line {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 16px 6px 6px; border-radius: 999px;
  background: rgba(31, 102, 224, .1);
  border: 1px solid rgba(31, 102, 224, .28);
  font-size: 13px; color: var(--gold-2); margin-bottom: 22px;
}
.badge-line i {
  font-style: normal; padding: 2px 9px; border-radius: 999px;
  background: linear-gradient(135deg, var(--gold-2), var(--gold-deep));
  color: #ffffff; font-size: 12px; font-weight: 700;
}

.hero h1 {
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.18; font-weight: 800; letter-spacing: -.5px;
  margin-bottom: 18px;
}
.hero h1 .hl {
  background: linear-gradient(120deg, var(--gold-2), var(--gold) 45%, #c98f3f);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 38px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  max-width: 820px; margin: 0 auto;
}
.stat {
  padding: 16px 18px; border-radius: var(--radius-sm);
  background: var(--panel); border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.stat b { display: block; font-size: 26px; font-weight: 800; color: var(--gold-2); line-height: 1.3; }
.stat span { font-size: 13px; color: var(--text-3); }

/* ============================== 通用区块 ============================== */
.section { padding: 84px 0; }
.section-alt { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 50%, var(--bg) 100%); }

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 42px; }
.sec-kicker {
  display: inline-block; font-size: 12px; letter-spacing: 3px; color: var(--gold);
  text-transform: uppercase; margin-bottom: 12px; font-weight: 600;
}
.sec-head h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; margin-bottom: 12px; }
.sec-head p { color: var(--text-2); font-size: 15px; }

/* ============================== 域名大图展示 ============================== */
.dn-box {
  position: relative; text-align: center; overflow: hidden;
  padding: 44px 30px 36px; border-radius: 20px;
  background: linear-gradient(150deg, rgba(31, 102, 224, .07), rgba(255, 255, 255, .55));
  border: 1px solid rgba(31, 102, 224, .3);
  margin-bottom: 26px;
  box-shadow: 0 24px 60px rgba(23, 43, 77, .14);
}
.dn-box::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(560px 260px at 50% -10%, rgba(31, 102, 224, .2), transparent 70%);
}
.dn-kicker {
  position: relative; display: inline-block; margin-bottom: 14px;
  font-size: 12px; letter-spacing: 4px; font-weight: 600; color: var(--gold);
}
/* 域名主体：加粗超大字 */
.dn-name {
  position: relative; display: block;
  font-size: clamp(42px, 9vw, 84px);
  font-weight: 800; letter-spacing: -1.5px; line-height: 1.12;
  word-break: break-all;
  background: linear-gradient(120deg, #0f2f66 15%, var(--gold-2) 60%, var(--gold-deep));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 12px;
}
.dn-tagline {
  position: relative; font-size: clamp(15px, 2.2vw, 19px);
  color: var(--gold-2); font-weight: 600; margin-bottom: 18px;
}
.dn-tags { position: relative; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.dn-tags .tag { background: rgba(31, 102, 224, .1); border-color: rgba(31, 102, 224, .3); color: var(--gold-2); }

/* 三句主张：直接展示，位于域名大图之内 */
.creed-inline {
  position: relative; margin-top: 24px; padding-top: 20px;
  border-top: 1px dashed rgba(31, 102, 224, .28);
  display: flex; flex-direction: column; gap: 12px;
}
.creed-inline li {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: clamp(15px, 2.1vw, 19px); font-weight: 700;
  color: var(--gold-2); line-height: 1.6;
}
.creed-inline .ci-num {
  width: 24px; height: 24px; border-radius: 7px; flex-shrink: 0;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 800; color: #ffffff;
  background: linear-gradient(135deg, var(--gold-2), var(--gold-deep));
  font-family: "SFMono-Regular", Consolas, monospace;
}

/* ============================== 交易平台 ============================== */
.platforms {
  margin-top: 24px; padding: 22px 24px; border-radius: var(--radius);
  background: rgba(255, 255, 255, .035);
  border: 1px dashed rgba(31, 102, 224, .38);
}
.platforms h3 { font-size: 16px; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.platforms h3 svg { color: var(--gold); flex-shrink: 0; }
.platforms > p { font-size: 13.5px; color: var(--text-3); margin-bottom: 16px; }
.plat-list { display: grid; gap: 10px; grid-template-columns: repeat(5, 1fr); }
.plat {
  position: relative; display: block;
  padding: 13px 8px; border-radius: var(--radius-sm); text-align: center;
  background: rgba(13, 45, 98, .045); border: 1px solid var(--line);
  font-size: 14.5px; font-weight: 600; color: var(--text);
  transition: transform .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease), background .25s var(--ease);
}
.plat:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 102, 224, .6);
  color: var(--gold-2);
  background: rgba(31, 102, 224, .08);
}
.plat small { display: block; margin-top: 3px; font-size: 11px; font-weight: 400; color: var(--text-3); }
.plat .ext { position: absolute; top: 9px; right: 9px; opacity: .28; transition: opacity .25s var(--ease); }
.plat:hover .ext { opacity: 1; }

/* ============================== 详情两栏 ============================== */
.showcase { display: grid; gap: 22px; grid-template-columns: 1.15fr .85fr; align-items: start; }
.prose { font-size: 15.5px; color: var(--text-2); line-height: 2; }
.prose p { margin-bottom: 16px; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--gold-2); font-weight: 600; }

.side-panel { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 92px; }
.spec { margin: 0; }
.spec-row {
  display: flex; align-items: baseline; justify-content: space-between; gap: 14px;
  padding: 11px 0; border-bottom: 1px dashed rgba(15, 45, 90, .12);
}
.spec-row:last-child { border-bottom: 0; padding-bottom: 0; }
.spec-row dt { font-size: 13.5px; color: var(--text-3); flex-shrink: 0; }
.spec-row dd { font-size: 14.5px; font-weight: 600; text-align: right; word-break: break-all; }
.spec-row dd.gold { color: var(--gold-2); }

.price-block { text-align: center; padding: 22px 20px; border-radius: var(--radius-sm); background: rgba(13, 45, 98, .045); border: 1px solid var(--line); }
.price-block .pb-label { font-size: 12.5px; color: var(--text-3); letter-spacing: 1px; }
.price-block .pb-value { font-size: 28px; font-weight: 800; color: var(--cyan); margin: 4px 0 6px; }
.price-block .pb-tip { font-size: 12.5px; color: var(--text-3); margin-bottom: 14px; }
.price-block .btn { width: 100%; }

/* ============================== 通用面板 ============================== */
.card {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.card-gold {
  border-color: rgba(31, 102, 224, .32);
  background: linear-gradient(160deg, rgba(31, 102, 224, .05), #ffffff);
}
.card > h3 {
  font-size: 16.5px; margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.card > h3 svg { color: var(--gold); flex-shrink: 0; }

.tag {
  font-size: 12px; padding: 4px 10px; border-radius: 6px;
  background: rgba(13, 45, 98, .05); border: 1px solid var(--line); color: var(--text-2);
}

/* 适用场景标签组 */
.use-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.use-tags .tag { background: rgba(31, 102, 224, .08); border-color: rgba(31, 102, 224, .26); color: var(--gold-2); }

/* ============================== 主张三卡 ============================== */
.creed-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.creed {
  position: relative; padding: 30px 26px; border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(31, 102, 224, .1), rgba(255, 255, 255, .02));
  border: 1px solid rgba(31, 102, 224, .2);
  overflow: hidden;
}
.creed .num {
  font-size: 46px; font-weight: 800; line-height: 1;
  color: rgba(31, 102, 224, .18); margin-bottom: 14px;
}
.creed h3 { font-size: 19px; font-weight: 700; color: var(--gold-2); margin-bottom: 10px; line-height: 1.6; }
.creed p { font-size: 14px; color: var(--text-2); }

/* ============================== 流程 / FAQ ============================== */
.steps { display: grid; gap: 18px; grid-template-columns: repeat(4, 1fr); counter-reset: s; }
.step {
  position: relative; padding: 26px 22px; border-radius: var(--radius);
  background: var(--panel); border: 1px solid var(--line);
}
.step .sn {
  width: 42px; height: 42px; border-radius: 12px; margin-bottom: 14px;
  display: grid; place-items: center; font-weight: 800; font-size: 17px;
  background: linear-gradient(135deg, var(--gold-2), var(--gold-deep)); color: #ffffff;
}
.step h3 { font-size: 17px; margin-bottom: 8px; font-weight: 700; }
.step p { font-size: 14px; color: var(--text-2); }

.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--panel); margin-bottom: 12px; overflow: hidden;
  transition: border-color .25s var(--ease);
}
.faq-item[open] { border-color: rgba(31, 102, 224, .4); }
.faq-item summary {
  padding: 16px 20px; font-size: 16px; font-weight: 600; cursor: pointer;
  list-style: none; display: flex; align-items: center; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; margin-left: auto; font-size: 20px; color: var(--gold);
  transition: transform .3s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 20px 18px; font-size: 14.5px; color: var(--text-2); line-height: 1.9; }

/* ============================== 联系区 ============================== */
.contact-wrap {
  display: grid; gap: 22px; grid-template-columns: 1.1fr .9fr; align-items: stretch;
}
.contact-card, .qr-card {
  padding: 30px; border-radius: var(--radius);
  background: #ffffff;
  border: 1px solid var(--line);
}
.contact-card h3, .qr-card h3 { font-size: 20px; margin-bottom: 8px; }
.contact-card > p { font-size: 14.5px; color: var(--text-2); margin-bottom: 20px; }

.contact-rows { display: flex; flex-direction: column; gap: 12px; }
.crow {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border-radius: var(--radius-sm);
  background: rgba(13, 45, 98, .04); border: 1px solid var(--line);
}
.crow .ci {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  display: grid; place-items: center;
  background: rgba(31, 102, 224, .12); color: var(--gold-2);
}
.crow .ct { flex: 1; min-width: 0; }
.crow .ct small { display: block; font-size: 12px; color: var(--text-3); line-height: 1.5; }
.crow .ct b {
  font-size: 16px; font-weight: 700; word-break: break-all;
  color: var(--text);
}
.copy-btn {
  flex-shrink: 0; padding: 7px 14px; border-radius: 8px; font-size: 13px;
  border: 1px solid rgba(31, 102, 224, .45); color: var(--gold-2);
  background: rgba(31, 102, 224, .08);
  display: inline-flex; align-items: center; gap: 6px;
  transition: all .22s var(--ease);
}
.copy-btn:hover { background: rgba(31, 102, 224, .2); }
.copy-btn.done { border-color: var(--green); color: var(--green); background: rgba(88, 192, 124, .12); }

.qr-card { display: flex; flex-direction: column; align-items: center; text-align: center; }
.qr-card > p { font-size: 14px; color: var(--text-2); margin-bottom: 18px; }
.qr-frame {
  width: 190px; height: 190px; padding: 10px; border-radius: 14px;
  background: #fff; box-shadow: 0 12px 30px rgba(23, 43, 77, .18);
  margin-bottom: 14px;
}
.qr-frame img { width: 100%; height: 100%; border-radius: 6px; }
.qr-tip { font-size: 13px; color: var(--text-3); }

/* ============================== 页脚 ============================== */
.site-footer {
  background: linear-gradient(180deg, #eef3fa, #e3ebf6);
  border-top: 1px solid var(--line);
  padding: 56px 0 0;
  margin-top: 20px;
}
.footer-grid {
  display: grid; gap: 32px; grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  padding-bottom: 36px;
}
.footer-col h4 { font-size: 15px; margin-bottom: 16px; color: var(--gold-2); }
.footer-col p { font-size: 13.5px; color: var(--text-3); line-height: 1.9; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul a { font-size: 13.5px; color: var(--text-2); transition: color .2s var(--ease); }
.footer-col ul a:hover { color: var(--gold-2); }

.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.fcontact-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 9px;
  background: rgba(13, 45, 98, .045); border: 1px solid var(--line);
}
.fcontact-item .fc-t { flex: 1; min-width: 0; }
.fcontact-item .fc-t small { display: block; font-size: 11px; color: var(--text-3); }
.fcontact-item .fc-t b { font-size: 13.5px; font-weight: 700; word-break: break-all; }
.fcontact-item .mini-copy {
  flex-shrink: 0; padding: 5px 10px; border-radius: 7px; font-size: 12px;
  border: 1px solid rgba(31, 102, 224, .4); color: var(--gold-2);
  background: rgba(31, 102, 224, .08);
  transition: all .22s var(--ease);
}
.fcontact-item .mini-copy:hover { background: rgba(31, 102, 224, .2); }
.fcontact-item .mini-copy.done { border-color: var(--green); color: var(--green); }

.footer-qr { display: flex; align-items: center; gap: 14px; margin-top: 6px; }
.footer-qr .fq-img {
  width: 92px; height: 92px; padding: 6px; border-radius: 10px;
  background: #fff; flex-shrink: 0;
}
.footer-qr .fq-img img { width: 100%; height: 100%; border-radius: 5px; }
.footer-qr .fq-t { font-size: 12.5px; color: var(--text-3); line-height: 1.7; }

.footer-bottom {
  border-top: 1px solid var(--line); padding: 18px 0 26px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-3);
}
.footer-bottom .fb-links { margin-left: auto; display: flex; gap: 16px; }

/* ============================== 右侧悬浮客服 ============================== */
.side-service {
  position: fixed; right: 18px; top: 50%; transform: translateY(-50%);
  z-index: 70; display: flex; flex-direction: column; gap: 10px;
}
.ss-item { position: relative; }
.ss-btn {
  width: 52px; height: 52px; border-radius: 14px;
  background: #ffffff;
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
  display: grid; place-items: center; color: var(--text-2);
  box-shadow: 0 10px 26px rgba(23, 43, 77, .16);
  transition: all .28s var(--ease);
}
.ss-btn:hover { color: #ffffff; background: linear-gradient(135deg, var(--gold-2), var(--gold-deep)); border-color: transparent; transform: translateX(-4px); }
.ss-btn.ss-top { color: var(--text-3); }

.ss-pop {
  position: absolute; right: 64px; top: 50%; transform: translateY(-50%) scale(.92);
  width: 208px; padding: 18px; border-radius: 14px;
  background: rgba(255, 255, 255, .98); border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: all .28s var(--ease);
}
.ss-item:hover .ss-pop { opacity: 1; visibility: visible; transform: translateY(-50%) scale(1); pointer-events: auto; }
.ss-pop h5 { font-size: 14px; margin-bottom: 4px; }
.ss-pop p { font-size: 12.5px; color: var(--text-3); margin-bottom: 12px; }
.ss-pop .qr-mini {
  width: 100%; aspect-ratio: 1; padding: 8px; border-radius: 10px;
  background: #fff; margin-bottom: 10px;
}
.ss-pop .qr-mini img { width: 100%; height: 100%; }
.ss-pop .btn { width: 100%; }

/* ============================== 移动端底部条 ============================== */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 75;
  display: none; gap: 10px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
}
.mobile-bar .mb-btn {
  flex: 1; height: 46px; border-radius: 12px; font-size: 14px; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border: 1px solid var(--line-strong); color: var(--text);
  background: rgba(13, 45, 98, .05);
}
.mobile-bar .mb-btn.primary {
  background: linear-gradient(135deg, var(--gold-2), var(--gold-deep));
  color: #ffffff; border-color: transparent;
}

/* ============================== 提示条 ============================== */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  z-index: 120; padding: 12px 22px; border-radius: 12px;
  background: rgba(12, 35, 74, .96); border: 1px solid rgba(47, 123, 255, .5);
  color: var(--gold-2); font-size: 14px; font-weight: 600;
  box-shadow: var(--shadow);
  opacity: 0; visibility: hidden;
  transition: all .3s var(--ease);
  max-width: 88vw; text-align: center;
}
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ============================== 响应式 ============================== */
@media (max-width: 1080px) {
  .nav { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .creed-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { grid-template-columns: 1fr; }
  .showcase { grid-template-columns: 1fr; }
  .side-panel { position: static; }
  .plat-list { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 860px) {
  .hero { padding: 118px 0 66px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 62px 0; }
  .side-service { right: 12px; gap: 8px; }
  .ss-btn { width: 46px; height: 46px; border-radius: 12px; }
  .ss-pop { right: 56px; width: 186px; }
}

@media (max-width: 720px) {
  body { font-size: 15px; padding-bottom: 68px; }
  .mobile-bar { display: flex; }
  .side-service { top: auto; bottom: 84px; transform: none; }
  .ss-btn { width: 44px; height: 44px; }
  .ss-pop { right: 52px; bottom: 0; top: auto; transform: translateY(0) scale(.92); }
  .ss-item:hover .ss-pop { transform: translateY(0) scale(1); }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .steps { grid-template-columns: 1fr; }
  .toast { bottom: 82px; }
  .header-cta .btn-ghost { display: none; }
  .dn-box { padding: 32px 18px 26px; border-radius: 16px; }
  .plat-list { grid-template-columns: repeat(2, 1fr); }
  .card { padding: 20px 18px; }
  .platforms { padding: 18px 16px; }
}

@media (max-width: 420px) {
  .wrap { padding: 0 14px; }
  .hero-stats { gap: 10px; }
  .stat { padding: 12px 14px; }
  .stat b { font-size: 22px; }
  .card { padding: 18px; }
  .creed { padding: 24px 20px; }
  .creed-inline { gap: 10px; margin-top: 18px; padding-top: 16px; }
  .footer-bottom { font-size: 12px; }
  .footer-bottom .fb-links { margin-left: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}