/* ==========================================================================
   北京开新活力科技有限公司 · 官网样式
   视觉参考：企业服务类站点（蓝色企业调 + 粒子头图 + 居中大标题 + 编号板块）
   无外部依赖，移动端优先。
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --c-primary: #0084eb;
  --c-primary-dark: #1976c6;
  --c-primary-deep: #0a2a46;
  --c-accent: #ff6c00;
  --c-green: #5d9516;
  --c-teal: #00d6c2;

  --c-text: #1f1f1f;
  --c-text-mid: #505050;
  --c-text-soft: #7b8794;
  --c-line: #e3e8ee;

  --c-bg: #ffffff;
  --c-bg-soft: #f6f9fc;
  --c-bg-tint: #f3fbff;
  --c-bg-dark: #0a2a46;

  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 14px;

  --shadow-sm: 0 2px 8px rgba(10, 42, 70, 0.06);
  --shadow: 0 8px 28px rgba(10, 42, 70, 0.1);
  --shadow-lg: 0 18px 48px rgba(10, 42, 70, 0.16);

  --header-h: 76px;
  --shell: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 2. 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-primary-dark); }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.35; }
p { margin: 0; }
button { font-family: inherit; font-size: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: inherit; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

/* 锚点跳转时为固定导航留出空间 */
section[id],
[id][data-anchor] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 3. 顶部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 900;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s, border-color .25s;
}
.site-header.is-scrolled {
  border-bottom-color: var(--c-line);
  box-shadow: 0 4px 18px rgba(10, 42, 70, 0.08);
}
.site-header .shell {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand__mark {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-teal));
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 17px;
  flex: none;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name { font-size: 19px; font-weight: 800; color: var(--c-primary-deep); letter-spacing: .5px; }
.brand__sub { font-size: 11px; color: var(--c-text-soft); letter-spacing: 1.4px; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__item > a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--c-text);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.nav__item > a:hover { color: var(--c-primary); background: var(--c-bg-tint); }
.nav__item > a.is-active { color: var(--c-primary); font-weight: 700; }

.nav__auth { display: flex; align-items: center; gap: 8px; margin-left: 8px; }
.nav__user {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 6px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-size: 14px;
  color: var(--c-text);
}
.nav__user:hover { border-color: var(--c-primary); color: var(--c-primary); }
.nav__avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-teal));
  color: #fff; font-size: 12px; font-weight: 700;
  display: grid; place-items: center; flex: none;
}

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--c-line);
  background: #fff;
  border-radius: var(--radius);
  padding: 0;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px;
  margin: 3px auto; background: var(--c-text);
  border-radius: 2px; transition: .2s;
}

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px; font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s, background .2s, color .2s, border-color .2s;
  text-align: center;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--c-primary); color: #fff; box-shadow: 0 6px 18px rgba(0, 132, 235, .28); }
.btn--primary:hover { background: var(--c-primary-dark); color: #fff; box-shadow: 0 10px 24px rgba(0, 132, 235, .34); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .7); }
.btn--ghost:hover { background: rgba(255, 255, 255, .14); color: #fff; }
.btn--outline { background: #fff; color: var(--c-primary); border-color: var(--c-primary); }
.btn--outline:hover { background: var(--c-bg-tint); }
.btn--accent { background: var(--c-accent); color: #fff; box-shadow: 0 6px 18px rgba(255, 108, 0, .28); }
.btn--accent:hover { background: #e85f00; color: #fff; }
.btn--block { width: 100%; }
.btn--sm { padding: 8px 16px; font-size: 14px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; box-shadow: none; }

/* ---------- 5. 首屏 ---------- */
.hero {
  position: relative;
  min-height: 620px;
  padding: calc(var(--header-h) + 90px) 0 110px;
  display: flex;
  align-items: center;
  background: var(--c-primary-deep);
  overflow: hidden;
  color: #fff;
}
.hero__bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: .34;
  transform: scale(1.04);
}
.hero__veil {
  position: absolute; inset: 0;
  background:
    radial-gradient(1100px 520px at 18% 22%, rgba(0, 132, 235, .62), transparent 62%),
    linear-gradient(115deg, rgba(10, 42, 70, .94) 0%, rgba(10, 42, 70, .74) 46%, rgba(10, 42, 70, .52) 100%);
}
.hero__particles { position: absolute; inset: 0; }
.hero__inner { position: relative; z-index: 2; max-width: 800px; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 16px;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 999px;
  font-size: 13px; letter-spacing: .6px;
  margin-bottom: 26px;
  background: rgba(255, 255, 255, .07);
}
.hero__eyebrow i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-teal); flex: none;
}
.hero__title { font-size: 54px; line-height: 1.22; letter-spacing: -.5px; }
.hero__rule { width: 96px; height: 3px; background: var(--c-teal); margin: 26px 0; border-radius: 3px; }
.hero__lead { font-size: 18px; color: rgba(255, 255, 255, .86); max-width: 660px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.hero__facts {
  display: flex; flex-wrap: wrap; gap: 44px;
  margin-top: 56px; padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.hero__fact b { display: block; font-size: 26px; color: #fff; letter-spacing: .5px; }
.hero__fact span { font-size: 13px; color: rgba(255, 255, 255, .68); }

/* 内页头图 */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 74px) 0 74px;
  background: var(--c-primary-deep);
  color: #fff;
  overflow: hidden;
}
.page-hero__bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .26; }
.page-hero__veil {
  position: absolute; inset: 0;
  background: linear-gradient(115deg, rgba(10, 42, 70, .95), rgba(10, 42, 70, .68));
}
.page-hero__inner { position: relative; z-index: 2; }
.page-hero__title { font-size: 40px; }
.page-hero__lead { margin-top: 14px; font-size: 16px; color: rgba(255, 255, 255, .82); max-width: 760px; }
.page-hero__rule { width: 72px; height: 3px; background: var(--c-teal); margin: 20px 0; border-radius: 3px; }

.crumb { font-size: 13px; color: rgba(255, 255, 255, .62); margin-bottom: 16px; }
.crumb a { color: rgba(255, 255, 255, .82); }
.crumb a:hover { color: #fff; }

/* ---------- 6. 通用板块 ---------- */
.section { padding: 84px 0; }
.section--soft { background: var(--c-bg-soft); }
.section--tint { background: var(--c-bg-tint); }
.section--dark { background: var(--c-bg-dark); color: #fff; }

.sec-head { text-align: center; margin-bottom: 52px; }
.sec-head__title { font-size: 40px; color: var(--c-primary); letter-spacing: 1px; }
.section--dark .sec-head__title { color: #fff; }
.sec-head__sub { margin-top: 14px; color: var(--c-text-mid); font-size: 16px; }
.section--dark .sec-head__sub { color: rgba(255, 255, 255, .74); }
.sec-head__bar { width: 56px; height: 3px; background: var(--c-primary); margin: 18px auto 0; border-radius: 3px; }
.sec-head--left { text-align: left; }
.sec-head--left .sec-head__bar { margin-left: 0; }

/* ---------- 7. 数据卡 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat {
  position: relative;
  padding: 34px 26px;
  border-radius: var(--radius-lg);
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.stat::after {
  content: ""; position: absolute; right: -34px; bottom: -46px;
  width: 132px; height: 132px; border-radius: 50%;
  background: rgba(255, 255, 255, .13);
}
.stat--blue { background: linear-gradient(135deg, #0084eb, #2b8fe4); }
.stat--orange { background: linear-gradient(135deg, #ff6c00, #ff8c3a); }
.stat--green { background: linear-gradient(135deg, #5d9516, #8bba4e); }
.stat--deep { background: linear-gradient(135deg, #0a2a46, #1976c6); }
.stat__num { font-size: 34px; font-weight: 800; letter-spacing: .5px; position: relative; z-index: 1; }
.stat__label { margin-top: 6px; font-size: 15px; font-weight: 600; position: relative; z-index: 1; }
.stat__desc { margin-top: 8px; font-size: 13px; color: rgba(255, 255, 255, .82); position: relative; z-index: 1; }

/* ---------- 8. 图文交替板块 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split--reverse .split__media { order: 2; }
.split__media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.split__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.split__index {
  display: inline-block;
  font-size: 15px; font-weight: 800; letter-spacing: 2px;
  color: var(--c-primary);
  padding: 2px 12px;
  border: 1px solid rgba(0, 132, 235, .3);
  border-radius: 999px;
  margin-bottom: 16px;
}
.split__title { font-size: 30px; margin-bottom: 8px; }
.split__sub { color: var(--c-accent); font-size: 15px; font-weight: 600; margin-bottom: 18px; }
.split__desc { color: var(--c-text-mid); margin-bottom: 22px; }

.tick-list { display: grid; gap: 12px; }
.tick-list li {
  position: relative;
  padding-left: 30px;
  color: var(--c-text-mid);
}
.tick-list li::before {
  content: "";
  position: absolute; left: 0; top: 9px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--c-bg-tint);
  border: 1px solid rgba(0, 132, 235, .4);
}
.tick-list li::after {
  content: "";
  position: absolute; left: 5px; top: 14px;
  width: 6px; height: 3px;
  border-left: 2px solid var(--c-primary);
  border-bottom: 2px solid var(--c-primary);
  transform: rotate(-45deg);
}

/* ---------- 9. 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform .22s, box-shadow .22s, border-color .22s;
  height: 100%;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(0, 132, 235, .32); }
.card__icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--c-bg-tint);
  color: var(--c-primary);
  display: grid; place-items: center;
  font-weight: 800; font-size: 19px;
  margin-bottom: 20px;
}
.card__title { font-size: 20px; margin-bottom: 10px; }
.card__desc { color: var(--c-text-mid); font-size: 15px; }
.card__meta { margin-top: auto; padding-top: 18px; font-size: 13px; color: var(--c-text-soft); }

/* 服务明细 */
.svc-list { display: grid; gap: 10px; margin-top: 18px; }
.svc-list li {
  padding: 14px 16px;
  background: var(--c-bg-soft);
  border-radius: var(--radius);
  border-left: 3px solid var(--c-primary);
}
.svc-list b { display: block; font-size: 15px; margin-bottom: 2px; }
.svc-list span { font-size: 14px; color: var(--c-text-mid); }

/* 流程 */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: flow; }
.flow__item {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}
.flow__step { font-size: 26px; font-weight: 800; color: rgba(0, 132, 235, .28); }
.flow__title { font-size: 17px; margin: 6px 0 8px; }
.flow__desc { font-size: 14px; color: var(--c-text-mid); }

/* ---------- 10. 资讯列表 ---------- */
.news-list { display: grid; gap: 20px; }
.news-item {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 26px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  transition: box-shadow .22s, border-color .22s, transform .22s;
}
.news-item:hover { box-shadow: var(--shadow); border-color: rgba(0, 132, 235, .3); transform: translateY(-2px); }
.news-item__cover { border-radius: var(--radius); overflow: hidden; }
.news-item__cover img { width: 100%; height: 176px; object-fit: cover; }
.news-item__body { display: flex; flex-direction: column; }
.news-item__tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; }
.tag {
  font-size: 12px; padding: 3px 10px; border-radius: 999px;
  background: var(--c-bg-tint); color: var(--c-primary-dark);
}
.tag--lock { background: rgba(255, 108, 0, .12); color: #c95400; font-weight: 700; }
.tag--free { background: rgba(93, 149, 22, .14); color: #4a7a10; font-weight: 700; }
.news-item__title { font-size: 21px; margin-bottom: 10px; }
.news-item__title a { color: var(--c-text); }
.news-item__title a:hover { color: var(--c-primary); }
.news-item__excerpt { color: var(--c-text-mid); font-size: 15px; flex: 1; }
.news-item__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--c-line);
}
.news-item__meta { font-size: 13px; color: var(--c-text-soft); display: flex; gap: 16px; flex-wrap: wrap; }
.price { color: var(--c-accent); font-weight: 800; font-size: 17px; }
.price small { font-size: 12px; font-weight: 600; }

/* ---------- 11. 文章详情 ---------- */
.article { max-width: 820px; margin: 0 auto; }
.article__head { border-bottom: 1px solid var(--c-line); padding-bottom: 24px; margin-bottom: 30px; }
.article__title { font-size: 34px; margin-bottom: 14px; }
.article__meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 14px; color: var(--c-text-soft); }
.article__body { font-size: 16.5px; color: #2f3b48; }
.article__body h3 { font-size: 22px; margin: 34px 0 12px; color: var(--c-primary-deep); }
.article__body p { margin: 0 0 18px; }
.article__body ul { margin: 0 0 20px; display: grid; gap: 10px; }
.article__body ul li {
  position: relative; padding-left: 24px; color: var(--c-text-mid);
}
.article__body ul li::before {
  content: ""; position: absolute; left: 6px; top: 11px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--c-primary);
}
.article__body blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  background: var(--c-bg-tint);
  border-left: 4px solid var(--c-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--c-primary-deep);
}

/* 付费墙 */
.paywall {
  position: relative;
  margin-top: 6px;
  padding: 40px 34px;
  border: 1px dashed rgba(0, 132, 235, .45);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #f7fbff, #eef7ff);
  text-align: center;
}
.paywall__fade {
  position: absolute; left: 0; right: 0; top: -84px; height: 84px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), #fff 82%);
  pointer-events: none;
}
.paywall__badge {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 1px;
  color: #c95400; background: rgba(255, 108, 0, .14);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 14px;
}
.paywall__title { font-size: 24px; margin-bottom: 10px; }
.paywall__desc { color: var(--c-text-mid); margin-bottom: 22px; }
.paywall__price { font-size: 30px; font-weight: 800; color: var(--c-accent); margin-bottom: 20px; }
.paywall__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.paywall__hint { margin-top: 18px; font-size: 13px; color: var(--c-text-soft); }

.locked-notice {
  padding: 14px 18px;
  border-radius: var(--radius);
  background: rgba(255, 108, 0, .08);
  border: 1px solid rgba(255, 108, 0, .3);
  color: #a34700;
  font-size: 14px;
  margin-bottom: 24px;
}
.unlocked-notice {
  padding: 14px 18px;
  border-radius: var(--radius);
  background: rgba(93, 149, 22, .1);
  border: 1px solid rgba(93, 149, 22, .32);
  color: #46700f;
  font-size: 14px;
  margin-bottom: 24px;
}

/* ---------- 12. 弹层 ---------- */
.modal {
  position: fixed; inset: 0; z-index: 1000;
  display: none;
  align-items: center; justify-content: center;
  padding: 24px;
}
.modal.is-open { display: flex; }
.modal__mask { position: absolute; inset: 0; background: rgba(10, 42, 70, .62); backdrop-filter: blur(3px); }
.modal__panel {
  position: relative;
  width: 100%; max-width: 460px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 26px 26px 24px;
  box-shadow: var(--shadow-lg);
  animation: pop .22s ease-out;
}
@keyframes pop { from { opacity: 0; transform: translateY(14px) scale(.98); } to { opacity: 1; transform: none; } }
.modal__close {
  position: absolute; right: 14px; top: 14px;
  width: 34px; height: 34px; border: 0; border-radius: 50%;
  background: var(--c-bg-soft); color: var(--c-text-mid);
  font-size: 19px; line-height: 1;
}
.modal__close:hover { background: var(--c-line); }
.modal__title { font-size: 21px; text-align: center; margin-bottom: 4px; }
.modal__sub { text-align: center; color: var(--c-text-soft); font-size: 13.5px; margin-bottom: 14px; }
.modal__amount {
  text-align: center; font-size: 28px; font-weight: 800; color: var(--c-accent);
  margin-bottom: 4px;
}
.modal__amount-note { text-align: center; font-size: 12.5px; color: var(--c-text-soft); margin-bottom: 14px; }
.qr-box {
  width: 188px; margin: 0 auto 14px;
  padding: 10px; background: #fff;
  border: 1px solid var(--c-line); border-radius: var(--radius);
}
.qr-box img { width: 100%; border-radius: var(--radius-sm); }
.qr-box--placeholder { border-style: dashed; border-color: rgba(255, 108, 0, .5); }
.qr-note {
  margin: -6px auto 14px; max-width: 320px;
  text-align: center; font-size: 12px; color: #a34700;
  background: rgba(255, 108, 0, .08);
  border-radius: var(--radius); padding: 7px 11px;
}
.modal__steps { display: grid; gap: 7px; margin-bottom: 14px; }
.modal__steps li {
  display: flex; gap: 9px; font-size: 13.5px; color: var(--c-text-mid);
}
.modal__steps b {
  flex: none; width: 19px; height: 19px; border-radius: 50%;
  background: var(--c-primary); color: #fff;
  font-size: 11.5px; display: grid; place-items: center; margin-top: 3px;
}
.modal__legal {
  font-size: 12px; line-height: 1.7; color: var(--c-text-soft);
  background: var(--c-bg-soft); border-radius: var(--radius);
  padding: 10px 12px; margin-bottom: 16px;
}
.modal__legal li { position: relative; padding-left: 12px; }
.modal__legal li::before { content: "·"; position: absolute; left: 2px; }

/* toast */
.toast-host {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%);
  z-index: 1200; display: grid; gap: 10px; width: max-content; max-width: calc(100vw - 32px);
}
.toast {
  padding: 12px 22px; border-radius: 999px;
  background: rgba(10, 42, 70, .94); color: #fff;
  font-size: 14.5px; box-shadow: var(--shadow);
  animation: toastIn .24s ease-out;
}
.toast--ok { background: rgba(70, 112, 15, .96); }
.toast--warn { background: rgba(163, 71, 0, .96); }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ---------- 13. 表单 ---------- */
.auth-wrap { padding: 70px 0 90px; background: var(--c-bg-soft); }
.auth-card {
  max-width: 440px; margin: 0 auto;
  background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
}
.auth-card__head { text-align: center; margin-bottom: 28px; }
.auth-card__title { font-size: 26px; }
.auth-card__sub { color: var(--c-text-soft); font-size: 14px; margin-top: 8px; }
.auth-card--wide { max-width: 620px; }

.field { margin-bottom: 18px; }
.field__label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.field__label span { color: var(--c-accent); }
.field__input {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--c-line); border-radius: var(--radius);
  background: #fff; color: var(--c-text);
  transition: border-color .18s, box-shadow .18s;
}
.field__input:focus {
  outline: none; border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(0, 132, 235, .14);
}
.field__input.is-invalid { border-color: #d93b3b; }
.field__error { display: none; font-size: 13px; color: #d93b3b; margin-top: 6px; }
.field__error.is-shown { display: block; }
.field__hint { font-size: 12.5px; color: var(--c-text-soft); margin-top: 6px; }
.field--check { display: flex; align-items: flex-start; gap: 9px; font-size: 14px; color: var(--c-text-mid); }
.field--check input { margin-top: 5px; flex: none; }
.field--row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }

.form-note {
  margin-top: 20px; padding: 14px 16px;
  background: var(--c-bg-tint); border-radius: var(--radius);
  font-size: 13px; color: var(--c-primary-deep);
}
.form-note b { display: block; margin-bottom: 4px; }
.auth-alt { text-align: center; margin-top: 22px; font-size: 14px; color: var(--c-text-mid); }

/* 登录 / 注册页账号数据存储提示 */
.demo-hint {
  margin-bottom: 22px; padding: 12px 14px;
  border-radius: var(--radius);
  background: rgba(255, 108, 0, .08);
  border: 1px solid rgba(255, 108, 0, .3);
  font-size: 13px; color: #a34700;
}

/* ---------- 14. 个人中心 ---------- */
.account-grid { display: grid; grid-template-columns: 300px 1fr; gap: 28px; align-items: start; }
.panel {
  background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: 28px;
}
.panel__title { font-size: 19px; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--c-line); }
.profile { display: flex; align-items: center; gap: 14px; }
.profile__avatar {
  width: 58px; height: 58px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-teal));
  color: #fff; font-size: 22px; font-weight: 800;
  display: grid; place-items: center; flex: none;
}
.profile__name { font-size: 18px; font-weight: 700; }
.profile__meta { font-size: 13px; color: var(--c-text-soft); }
.kv { display: grid; grid-template-columns: 92px 1fr; gap: 10px 14px; font-size: 14px; margin-top: 20px; }
.kv dt { color: var(--c-text-soft); }
.kv dd { margin: 0; }

.order-list { display: grid; gap: 12px; }
.order-item {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 18px; border: 1px solid var(--c-line); border-radius: var(--radius);
}
.order-item__title { font-weight: 600; font-size: 15px; }
.order-item__meta { font-size: 12.5px; color: var(--c-text-soft); margin-top: 3px; }
.badge-ok { font-size: 12px; font-weight: 700; color: #46700f; background: rgba(93, 149, 22, .14); padding: 3px 10px; border-radius: 999px; }
.empty-state { text-align: center; padding: 46px 20px; color: var(--c-text-soft); }
.empty-state b { display: block; color: var(--c-text); font-size: 17px; margin-bottom: 8px; }

/* ---------- 15. 信息表 ---------- */
.info-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.info-table th, .info-table td { padding: 15px 18px; border-bottom: 1px solid var(--c-line); text-align: left; vertical-align: top; }
.info-table th { width: 200px; color: var(--c-text-soft); font-weight: 600; background: var(--c-bg-soft); }
.info-table tr:last-child th, .info-table tr:last-child td { border-bottom: 0; }

.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: var(--c-line); }
.timeline__item { position: relative; padding-bottom: 30px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: ""; position: absolute; left: -34px; top: 7px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 3px solid var(--c-primary);
}
.timeline__date { font-size: 13px; font-weight: 700; color: var(--c-primary); letter-spacing: .5px; }
.timeline__title { font-size: 18px; margin: 4px 0 6px; }
.timeline__desc { color: var(--c-text-mid); font-size: 15px; }

.chip-group { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.chip {
  font-size: 13.5px; padding: 6px 14px;
  background: var(--c-bg-tint); color: var(--c-primary-dark);
  border-radius: 999px; border: 1px solid rgba(0, 132, 235, .18);
}
.scope-text {
  margin-top: 20px; padding: 20px 22px;
  background: var(--c-bg-soft); border-radius: var(--radius);
  font-size: 14px; color: var(--c-text-mid); line-height: 1.85;
}

/* ---------- 16. 联系带 / 页脚 ---------- */
.contact-band {
  position: relative; padding: 84px 0;
  background: var(--c-primary-deep); color: #fff; overflow: hidden;
}
.contact-band__particles { position: absolute; inset: 0; }
.contact-band__inner { position: relative; z-index: 2; }
.contact-band__grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 50px; align-items: center; }
.contact-list { display: grid; gap: 20px; }
.contact-list li { display: flex; gap: 14px; }
.contact-list .ico {
  width: 42px; height: 42px; border-radius: 12px; flex: none;
  background: rgba(255, 255, 255, .12);
  display: grid; place-items: center; font-size: 18px;
}
.contact-list b { display: block; font-size: 15px; }
.contact-list span { font-size: 14px; color: rgba(255, 255, 255, .74); }
.contact-list a { color: #fff; }
.contact-list a:hover { color: var(--c-teal); }

.site-footer { background: #06192c; color: rgba(255, 255, 255, .7); padding: 60px 0 26px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 44px; padding-bottom: 36px; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.site-footer .brand__name { color: #fff; }
.site-footer .brand__sub { color: rgba(255, 255, 255, .5); }
.footer-desc { margin-top: 16px; line-height: 1.85; color: rgba(255, 255, 255, .64); }
.footer-col h4 { font-size: 15px; color: #fff; margin-bottom: 16px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255, 255, 255, .68); }
.footer-col a:hover { color: var(--c-teal); }
.footer-bottom {
  padding-top: 22px;
  display: flex; flex-wrap: wrap; gap: 12px 24px;
  justify-content: space-between; align-items: center;
  font-size: 13px; color: rgba(255, 255, 255, .55);
}
.footer-bottom a { color: rgba(255, 255, 255, .68); }
.footer-legal { margin-top: 10px; font-size: 12.5px; color: rgba(255, 255, 255, .45); display: grid; gap: 4px; }

/* 顶部提示条（bannerText 为空时不渲染） */
.demo-banner {
  background: linear-gradient(90deg, #fff4e8, #fffaf5);
  border-bottom: 1px solid rgba(255, 108, 0, .28);
  color: #a34700;
  font-size: 13.5px;
  text-align: center;
  padding: 9px 16px;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 950;
}
body.has-demo-banner .site-header { top: 40px; }
body.has-demo-banner .hero,
body.has-demo-banner .page-hero { padding-top: calc(var(--header-h) + 40px + 74px); }

/* ---------- 17. 加载态 ---------- */
.skeleton { background: linear-gradient(90deg, #eef2f7 25%, #f7fafc 37%, #eef2f7 63%); background-size: 400% 100%; animation: sk 1.3s ease infinite; border-radius: var(--radius); }
@keyframes sk { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
.loading-block { min-height: 120px; }
[data-render-pending] { opacity: 0; }
.render-ready [data-render-pending] { opacity: 1; transition: opacity .3s; }

/* ---------- 18. 响应式 ---------- */
@media (max-width: 1080px) {
  :root { --shell: 100%; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .split { gap: 40px; }
  .contact-band__grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .account-grid { grid-template-columns: 1fr; }
  .hero__title { font-size: 42px; }
  .sec-head__title { font-size: 32px; }
  .page-hero__title { font-size: 32px; }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    max-height: 0;
    overflow: hidden;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--c-line);
    box-shadow: 0 14px 30px rgba(10, 42, 70, .12);
    transition: max-height .28s ease;
  }
  body.has-demo-banner .nav { top: calc(var(--header-h) + 40px); }
  .nav.is-open { max-height: 82vh; overflow-y: auto; }
  .nav__list { flex-direction: column; align-items: stretch; padding: 8px 16px; }
  .nav__item > a { padding: 13px 12px; border-radius: var(--radius); font-size: 16px; }
  .nav__auth { padding: 8px 16px 20px; margin-left: 0; }
  .nav__auth .btn { flex: 1; }

  .split, .split--reverse { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .news-item { grid-template-columns: 1fr; gap: 18px; }
  .news-item__cover img { height: 190px; }
  .hero { min-height: 0; padding: calc(var(--header-h) + 60px) 0 74px; }
  .hero__title { font-size: 31px; }
  .hero__lead { font-size: 16px; }
  .hero__facts { gap: 26px 34px; margin-top: 40px; }
  .section { padding: 58px 0; }
  .sec-head { margin-bottom: 36px; }
  .sec-head__title { font-size: 26px; }
  .sec-head__sub { font-size: 15px; }
  .split__title { font-size: 23px; }
  .article__title { font-size: 25px; }
  .article__body h3 { font-size: 19px; }
  .auth-card { padding: 30px 22px; }
  .auth-wrap { padding: 44px 0 60px; }
  .paywall { padding: 30px 20px; }
  .info-table th, .info-table td { display: block; width: auto; border-bottom: 0; }
  .info-table th { padding-bottom: 4px; background: transparent; }
  .info-table td { padding-top: 0; border-bottom: 1px solid var(--c-line); }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .qr-box { width: 190px; }
}

@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .hero__facts { gap: 20px 26px; }
  .hero__fact b { font-size: 22px; }
  .hero__actions .btn { width: 100%; }
  .modal__panel { padding: 26px 20px; }
  .order-item { flex-direction: column; align-items: flex-start; }
}

@media print {
  .site-header, .site-footer, .contact-band, .paywall__actions, .demo-banner { display: none; }
}