/* ==========================================================================
   律动光年 Rhythm Lightyear — 全站公共样式
   ========================================================================== */

:root {
  --bg: #0b0d14;
  --bg-2: #11141f;
  --bg-3: #0e111a;
  --card: #161a28;
  --border: rgba(255, 255, 255, .08);
  --border-strong: rgba(255, 255, 255, .16);
  --text: #e8eaf2;
  --muted: #9aa1b5;
  --muted-2: #6b7186;
  --accent: #7c8cf8;
  --accent-2: #5ec6c0;
  --gold: #d9b878;
  --radius: 18px;
  --maxw: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", sans-serif;
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

::selection { background: rgba(124, 140, 248, .35); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-3); }
::-webkit-scrollbar-thumb { background: #2a2f45; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: #3a4160; }

/* --------------------------------------------------------------------------
   顶部导航
   -------------------------------------------------------------------------- */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(11, 13, 20, .82);
  border-bottom: 1px solid var(--border);
}
.nav {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  height: 66px; display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; letter-spacing: 1px; flex-shrink: 0; }
.logo .mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; color: #0b0d14; font-weight: 800;
}
.logo small { font-weight: 400; color: var(--muted); font-size: 11px; letter-spacing: 2.5px; }

nav.links { display: flex; gap: 26px; font-size: 14px; color: var(--muted); align-items: center; }
nav.links a { position: relative; padding: 4px 0; transition: color .2s; white-space: nowrap; }
nav.links a::after {
  content: ""; position: absolute; left: 50%; bottom: -2px; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: translateX(-50%); transition: width .25s; border-radius: 2px;
}
nav.links a:hover { color: var(--text); }
nav.links a:hover::after { width: 100%; }
nav.links a.active { color: #fff; font-weight: 600; }
nav.links a.active::after { width: 100%; }

.nav-cta {
  padding: 8px 20px; border-radius: 999px; font-size: 14px;
  background: linear-gradient(135deg, var(--accent), #6a5df0);
  color: #fff; cursor: pointer; border: none; font-weight: 600;
  transition: transform .2s, box-shadow .2s; white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(124, 140, 248, .35); }

.nav-toggle {
  display: none; width: 38px; height: 34px; border-radius: 9px;
  border: 1px solid var(--border); background: rgba(255, 255, 255, .04);
  color: var(--text); cursor: pointer; font-size: 15px; line-height: 1;
}

/* --------------------------------------------------------------------------
   通用容器 / 标题
   -------------------------------------------------------------------------- */
section { max-width: var(--maxw); margin: 0 auto; padding: 88px 24px 0; }
section.flush-top { padding-top: 40px; }

.sec-head { text-align: center; margin-bottom: 52px; }
.sec-head.left { text-align: left; }
.sec-head .eyebrow { color: var(--accent-2); font-size: 12px; letter-spacing: 6px; margin-bottom: 12px; text-transform: uppercase; }
.sec-head h2 { font-size: 32px; font-weight: 700; letter-spacing: 3px; }
.sec-head p { color: var(--muted); margin-top: 14px; font-size: 15px; }

.divider { height: 1px; background: var(--border); max-width: var(--maxw); margin: 0 auto; }

/* --------------------------------------------------------------------------
   页面头部（内页通用 Hero）
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  margin-top: 66px;
  padding: 74px 24px 60px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 60% at 50% 0%, rgba(124, 140, 248, .18), transparent 70%),
    radial-gradient(ellipse 40% 50% at 85% 40%, rgba(94, 198, 192, .08), transparent 70%);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, #000 20%, transparent 75%);
  pointer-events: none;
}
.page-hero > * { position: relative; }
.page-hero .eyebrow { color: var(--accent-2); font-size: 12px; letter-spacing: 6px; margin-bottom: 14px; text-transform: uppercase; }
.page-hero h1 {
  font-size: clamp(30px, 4.6vw, 46px); font-weight: 800; letter-spacing: 4px; line-height: 1.25;
  background: linear-gradient(120deg, #fff 30%, #b3bcfb 70%, #6fd8d2);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.page-hero p { color: var(--muted); margin: 18px auto 0; max-width: 720px; font-size: 15.5px; }

/* 面包屑 */
.crumbs {
  max-width: var(--maxw); margin: 0 auto; padding: 22px 24px 0;
  font-size: 13px; color: var(--muted-2); display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { color: #3c4258; }

/* --------------------------------------------------------------------------
   按钮
   -------------------------------------------------------------------------- */
.btn-primary {
  display: inline-block; padding: 13px 36px; border-radius: 999px; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #6a5df0);
  color: #fff; font-size: 15px; font-weight: 600; letter-spacing: 2px;
  transition: transform .2s, box-shadow .2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(124, 140, 248, .4); }

.btn-ghost {
  display: inline-block; padding: 13px 36px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border-strong); background: transparent; color: var(--text);
  font-size: 15px; letter-spacing: 2px; transition: border-color .2s, background .2s, color .2s;
}
.btn-ghost:hover { border-color: var(--accent); background: rgba(124, 140, 248, .08); }

.btn-sm {
  padding: 8px 20px; border-radius: 999px; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #6a5df0);
  color: #fff; font-size: 13px; font-weight: 600; letter-spacing: 1px;
  transition: transform .2s, box-shadow .2s;
}
.btn-sm:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(124, 140, 248, .35); }

.btn-line {
  display: inline-block; padding: 8px 20px; border-radius: 999px;
  border: 1px solid var(--border-strong); color: var(--text); font-size: 13px;
  transition: border-color .2s, background .2s;
}
.btn-line:hover { border-color: var(--accent); background: rgba(124, 140, 248, .08); }

/* --------------------------------------------------------------------------
   首页 Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative; margin-top: 66px; padding: 96px 24px 88px; text-align: center;
  background:
    radial-gradient(ellipse 60% 45% at 50% -5%, rgba(124, 140, 248, .22), transparent),
    radial-gradient(ellipse 40% 35% at 80% 30%, rgba(94, 198, 192, .10), transparent),
    radial-gradient(ellipse 40% 35% at 15% 40%, rgba(217, 184, 120, .08), transparent);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero > * { position: relative; }
.hero .badge {
  display: inline-block; padding: 6px 18px; border-radius: 999px;
  border: 1px solid rgba(124, 140, 248, .4); color: var(--accent);
  font-size: 12.5px; letter-spacing: 4px; margin-bottom: 26px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 64px); font-weight: 800; letter-spacing: 6px; line-height: 1.2;
  background: linear-gradient(120deg, #fff 30%, #aeb8ff 70%, #6fd8d2);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.sub { margin: 22px auto 0; max-width: 660px; color: var(--muted); font-size: 16.5px; letter-spacing: 1.5px; }
.hero .hero-actions { margin-top: 38px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.hero-stats {
  margin: 64px auto 0; max-width: 920px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
}
.hero-stats .stat { background: var(--bg-2); padding: 22px 12px; }
.hero-stats .num { font-size: 24px; font-weight: 700; color: #fff; letter-spacing: 1px; }
.hero-stats .num em { font-style: normal; color: var(--accent); }
.hero-stats .label { font-size: 12px; color: var(--muted); letter-spacing: 2px; margin-top: 4px; }

/* --------------------------------------------------------------------------
   卡片网格 / 产品卡
   -------------------------------------------------------------------------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 44px rgba(0, 0, 0, .5); border-color: rgba(124, 140, 248, .35); }
.card .cover { position: relative; aspect-ratio: 1 / 1; overflow: hidden; }
.card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.card:hover .cover img { transform: scale(1.04); }
.card .cover .tag {
  position: absolute; top: 14px; left: 14px; padding: 4px 12px; border-radius: 999px;
  background: rgba(0, 0, 0, .55); backdrop-filter: blur(6px);
  font-size: 11.5px; color: #fff; letter-spacing: 2px; border: 1px solid rgba(255, 255, 255, .15);
}
.card .body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.card h3 { font-size: 21px; letter-spacing: 3px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.card h3 .en { font-size: 11px; color: var(--muted); letter-spacing: 3px; font-weight: 400; text-transform: uppercase; }
.card .desc { color: var(--muted); font-size: 14px; margin: 10px 0 16px; flex: 1; }
.specs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.specs span {
  font-size: 12px; color: #b9c0d4; padding: 4px 10px;
  border-radius: 6px; background: rgba(255, 255, 255, .05); border: 1px solid var(--border);
}
.card .foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.price { font-size: 26px; font-weight: 800; color: var(--gold); }
.price small { font-size: 13px; font-weight: 400; color: var(--muted); margin-left: 4px; }

.card-bundle {
  background: linear-gradient(160deg, #1b1f33, #141726);
  border-color: rgba(124, 140, 248, .3);
}
.card-bundle .body { justify-content: center; text-align: center; padding: 34px 26px; }
.card-bundle .specs { justify-content: center; }
.card-bundle .foot { justify-content: center; }

/* --------------------------------------------------------------------------
   特性 / 步骤 / 数字
   -------------------------------------------------------------------------- */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.feature {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 16px; padding: 28px 26px;
  transition: border-color .25s, transform .25s;
}
.feature:hover { border-color: rgba(94, 198, 192, .4); transform: translateY(-4px); }
.feature .icon {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  background: rgba(124, 140, 248, .12); border: 1px solid rgba(124, 140, 248, .25);
}
.feature h4 { font-size: 17px; letter-spacing: 2px; margin-bottom: 10px; }
.feature p { color: var(--muted); font-size: 13.5px; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(225px, 1fr)); gap: 24px; counter-reset: step; }
.step { position: relative; background: var(--bg-2); border: 1px solid var(--border); border-radius: 16px; padding: 28px 24px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 30px; font-weight: 800; color: rgba(124, 140, 248, .35);
  position: absolute; top: 14px; right: 20px;
}
.step h4 { font-size: 16px; letter-spacing: 2px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 13.5px; }

/* --------------------------------------------------------------------------
   表格
   -------------------------------------------------------------------------- */
.table-wrap {
  border: 1px solid var(--border); border-radius: 16px; overflow: auto;
  background: var(--bg-2);
}
table.data { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 620px; }
table.data th, table.data td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--border); }
table.data thead th {
  background: rgba(124, 140, 248, .09); color: #cfd5ea; font-weight: 600; font-size: 13px; letter-spacing: 1px;
  white-space: nowrap;
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover td { background: rgba(255, 255, 255, .025); }
table.data td:first-child { color: #cfd5ea; white-space: nowrap; }
table.data .yes { color: var(--accent-2); }
table.data .no { color: var(--muted-2); }

/* --------------------------------------------------------------------------
   折叠面板（FAQ）
   -------------------------------------------------------------------------- */
.accordion { display: flex; flex-direction: column; gap: 12px; }
.acc {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 14px; overflow: hidden;
  transition: border-color .2s;
}
.acc:hover { border-color: rgba(124, 140, 248, .3); }
.acc-head {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 17px 22px; background: transparent; border: none; cursor: pointer;
  color: var(--text); font-size: 15px; font-weight: 600; letter-spacing: 1px; text-align: left;
}
.acc-head .q-mark { color: var(--accent); margin-right: 10px; font-weight: 700; }
.acc-head .arrow { color: var(--muted); font-size: 13px; transition: transform .25s; flex-shrink: 0; }
.acc.open .acc-head .arrow { transform: rotate(180deg); }
.acc-body { display: none; padding: 0 22px 20px 22px; color: var(--muted); font-size: 14px; }
.acc.open .acc-body { display: block; }
.acc-body p + p { margin-top: 10px; }
.acc-body ul { margin: 8px 0 0 18px; }
.acc-body li { margin-bottom: 5px; }

/* --------------------------------------------------------------------------
   时间线
   -------------------------------------------------------------------------- */
.timeline { position: relative; padding-left: 26px; }
.timeline::before {
  content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--accent), rgba(124, 140, 248, .12));
}
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -26px; top: 8px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); border: 3px solid var(--bg); box-shadow: 0 0 0 2px rgba(124, 140, 248, .28);
}
.tl-item .year { font-size: 13px; color: var(--accent-2); letter-spacing: 2px; font-weight: 600; }
.tl-item h4 { font-size: 16px; letter-spacing: 1.5px; margin: 4px 0 6px; }
.tl-item p { color: var(--muted); font-size: 13.5px; }

/* --------------------------------------------------------------------------
   产品详情
   -------------------------------------------------------------------------- */
.pd-top { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: start; }
.pd-media {
  border: 1px solid var(--border); border-radius: 22px; overflow: hidden; background: var(--bg-2);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
}
.pd-media img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.pd-info h1 { font-size: 38px; letter-spacing: 4px; font-weight: 800; }
.pd-info .en { color: var(--muted); font-size: 13px; letter-spacing: 5px; text-transform: uppercase; margin-top: 6px; }
.pd-info .lead { color: var(--muted); font-size: 15.5px; margin: 20px 0 24px; }
.pd-price-box {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 20px 22px; border-radius: 16px; background: var(--bg-2); border: 1px solid var(--border);
  margin-bottom: 22px;
}
.pd-price-box .price { font-size: 34px; }
.pd-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 22px; }
.pd-quick { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.pd-quick div { background: var(--bg-2); padding: 14px 16px; }
.pd-quick .k { font-size: 12px; color: var(--muted-2); letter-spacing: 1px; }
.pd-quick .v { font-size: 14px; color: #cfd5ea; margin-top: 3px; }

.pd-block { margin-top: 20px; }
.pd-block h3 { font-size: 20px; letter-spacing: 2px; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.pd-block h3::before { content: ""; width: 4px; height: 18px; border-radius: 2px; background: linear-gradient(180deg, var(--accent), var(--accent-2)); }
.pd-block p { color: var(--muted); font-size: 14.5px; }
.pd-block p + p { margin-top: 10px; }

.sound-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 6px; }
.sound-item {
  display: flex; align-items: center; gap: 12px; padding: 13px 16px;
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px;
}
.sound-item .idx { width: 26px; height: 26px; border-radius: 7px; background: rgba(124, 140, 248, .14); color: var(--accent); font-size: 12px; display: flex; align-items: center; justify-content: center; font-weight: 700; flex-shrink: 0; }
.sound-item .nm { font-size: 14px; }
.sound-item .sub { font-size: 12px; color: var(--muted-2); }

.knob-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.knob {
  padding: 16px 18px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 13px;
  display: flex; gap: 14px; align-items: flex-start;
}
.knob .dial {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  background: radial-gradient(circle at 30% 30%, #2b3358, #171b2b);
  border: 1px solid rgba(124, 140, 248, .35); position: relative;
}
.knob .dial::after {
  content: ""; position: absolute; left: 50%; top: 5px; width: 2px; height: 10px;
  background: var(--accent); transform: translateX(-50%); border-radius: 2px;
}
.knob .nm { font-size: 14px; font-weight: 600; }
.knob .ds { font-size: 12.5px; color: var(--muted); margin-top: 3px; }

.genre-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.genre-tags span {
  padding: 7px 16px; border-radius: 999px; font-size: 13px;
  background: rgba(94, 198, 192, .08); border: 1px solid rgba(94, 198, 192, .25); color: #b6e7e3;
}

/* --------------------------------------------------------------------------
   关于我们
   -------------------------------------------------------------------------- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.stat-row .s { background: var(--bg-2); padding: 26px 20px; text-align: center; }
.stat-row .n { font-size: 30px; font-weight: 800; color: #fff; }
.stat-row .n em { font-style: normal; color: var(--accent); }
.stat-row .l { font-size: 12.5px; color: var(--muted); letter-spacing: 2px; margin-top: 4px; }

.team { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }
.member { background: var(--bg-2); border: 1px solid var(--border); border-radius: 16px; padding: 26px 24px; text-align: center; transition: border-color .25s, transform .25s; }
.member:hover { border-color: rgba(124, 140, 248, .35); transform: translateY(-4px); }
.member .avatar {
  width: 66px; height: 66px; border-radius: 50%; margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 700; color: #0b0d14;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.member h4 { font-size: 17px; letter-spacing: 2px; }
.member .role { font-size: 12.5px; color: var(--accent-2); letter-spacing: 1px; margin-top: 4px; }
.member p { color: var(--muted); font-size: 13px; margin-top: 12px; }

.value-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; }
.value-item { padding: 26px 24px; background: var(--bg-2); border: 1px solid var(--border); border-radius: 16px; border-left: 3px solid var(--accent); }
.value-item h4 { font-size: 17px; letter-spacing: 2px; margin-bottom: 8px; }
.value-item p { color: var(--muted); font-size: 13.5px; }

/* --------------------------------------------------------------------------
   联系 / 表单
   -------------------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 34px; align-items: start; }
.form-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 20px; padding: 32px 30px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; letter-spacing: 1px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  background: rgba(255, 255, 255, .04); border: 1px solid var(--border);
  color: #fff; font-size: 14px; outline: none; transition: border-color .2s;
  font-family: inherit;
}
.field select option { background: #14182a; }
.field textarea { min-height: 130px; resize: vertical; line-height: 1.7; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field .hint { font-size: 12px; color: var(--muted-2); margin-top: 6px; }
.form-note { font-size: 12.5px; color: var(--muted-2); margin-top: 14px; line-height: 1.7; }

.info-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 20px; padding: 28px 26px; margin-bottom: 22px; }
.info-card h4 { font-size: 16px; letter-spacing: 2px; margin-bottom: 14px; display: flex; align-items: center; gap: 9px; }
.info-card .line { display: flex; justify-content: space-between; gap: 14px; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.info-card .line:last-child { border-bottom: none; }
.info-card .line .k { color: var(--muted); flex-shrink: 0; }
.info-card .line .v { color: #cfd5ea; text-align: right; }
.info-card .line .v a { color: var(--accent); }
.info-card p { color: var(--muted); font-size: 13.5px; }

.alert-ok {
  display: none; margin-top: 16px; padding: 13px 16px; border-radius: 11px;
  background: rgba(94, 198, 192, .1); border: 1px solid rgba(94, 198, 192, .3);
  color: #b6e7e3; font-size: 13.5px;
}
.alert-ok.show { display: block; }

/* --------------------------------------------------------------------------
   CTA 横幅
   -------------------------------------------------------------------------- */
.cta-band {
  margin-top: 88px; padding: 60px 32px; text-align: center; border-radius: 24px;
  background:
    radial-gradient(ellipse 60% 100% at 50% 0%, rgba(124, 140, 248, .18), transparent),
    var(--bg-2);
  border: 1px solid var(--border);
}
.cta-band h2 { font-size: 28px; letter-spacing: 4px; }
.cta-band p { color: var(--muted); margin: 14px 0 28px; }

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
footer { margin-top: 96px; border-top: 1px solid var(--border); background: #090b11; padding: 48px 24px 34px; }
.foot-inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 30px; }
.foot-brand { color: var(--muted); font-size: 13.5px; max-width: 320px; }
.foot-brand .logo { color: #fff; margin-bottom: 14px; }
.foot-brand p { margin-bottom: 14px; }
.foot-col h5 { font-size: 13.5px; color: #fff; letter-spacing: 2px; margin-bottom: 14px; font-weight: 600; }
.foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; font-size: 13px; color: var(--muted); }
.foot-col ul a:hover { color: var(--accent); }
.foot-bottom {
  max-width: var(--maxw); margin: 34px auto 0; padding-top: 22px;
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  color: var(--muted-2); font-size: 12.5px;
}
.foot-bottom a { color: #8b91a7; }
.foot-bottom a:hover { color: var(--text); }
.foot-bottom .links { display: flex; gap: 16px; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   购买弹窗
   -------------------------------------------------------------------------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(4, 6, 12, .72); backdrop-filter: blur(6px);
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.modal-mask.open { display: flex; }
.modal {
  width: 100%; max-width: 430px;
  background: linear-gradient(180deg, #171b2b, #12141f);
  border: 1px solid rgba(124, 140, 248, .25); border-radius: 22px;
  padding: 34px 32px 30px; position: relative;
  animation: pop .28s ease;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .6);
}
@keyframes pop { from { transform: scale(.92); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal .close {
  position: absolute; top: 16px; right: 18px; width: 32px; height: 32px;
  border-radius: 50%; border: 1px solid var(--border); background: transparent;
  color: var(--muted); font-size: 16px; cursor: pointer; line-height: 1;
}
.modal .close:hover { color: #fff; border-color: #fff; }
.modal h3 { font-size: 20px; letter-spacing: 2px; }
.modal .order-line {
  margin: 14px 0 22px; padding: 12px 16px; border-radius: 12px;
  background: rgba(124, 140, 248, .08); border: 1px solid rgba(124, 140, 248, .2);
  display: flex; justify-content: space-between; align-items: center; font-size: 14px; gap: 12px;
}
.modal .order-line .p { color: var(--gold); font-weight: 700; font-size: 18px; white-space: nowrap; }
.btn-pay {
  width: 100%; margin-top: 8px; padding: 14px; border-radius: 12px; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #6a5df0);
  color: #fff; font-size: 16px; font-weight: 700; letter-spacing: 4px;
  transition: transform .2s, box-shadow .2s;
}
.btn-pay:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(124, 140, 248, .4); }
.modal .safe-tip { text-align: center; color: var(--muted-2); font-size: 12px; margin-top: 14px; }

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .foot-inner { grid-template-columns: 1fr 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; max-width: none; }
}
@media (max-width: 900px) {
  .pd-top { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  nav.links {
    display: none; position: absolute; top: 66px; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 10px 24px 18px;
    background: rgba(11, 13, 20, .97); border-bottom: 1px solid var(--border);
    backdrop-filter: blur(14px);
  }
  nav.links.open { display: flex; }
  nav.links a { padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 15px; }
  nav.links a::after { display: none; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
}
@media (max-width: 720px) {
  .hero { padding-top: 62px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  section { padding-top: 64px; }
  .sec-head h2 { font-size: 26px; }
  .foot-inner { grid-template-columns: 1fr 1fr; }
  .pd-info h1 { font-size: 30px; }
}