/* ============================================================
   teaser.top — 设计系统
   全部视觉自绘，零外部素材（无字体文件 / 无图标库 / 无图片）
   字体使用系统字体栈，不分发任何字体，不涉字体版权
   ============================================================ */

:root {
  --paper:      #FAF8F3;
  --paper-2:    #F2EFE6;
  --paper-3:    #EDE9DE;
  --ink:        #16150F;
  --ink-2:      #2A2820;
  --ink-3:      #3A362B;
  --muted:      #6E6A61;
  --muted-2:    #8E8A7C;
  --rule:       #E2DDD0;
  --rule-2:     #D8D2C2;
  --accent:     #1E4D3E;
  --accent-2:   #2A6A55;
  --accent-bg:  #E9EFEB;

  --serif: Georgia, "Songti SC", "STSong", "SimSun", "Noto Serif SC", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;

  --wrap: 1160px;
  --pad: 28px;
}

* { box-sizing: border-box; }

/* .field 等设了 display:block 的元素会盖掉 UA 的 [hidden]，这里兜底 */
[hidden] { display: none !important; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; }
a { color: inherit; }

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

/* ---------------------------------------------------------- 排版基础 */

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: .01em;
  margin: 0;
}

p { margin: 0 0 1.1em; }
b, strong { font-weight: 600; }

.kicker {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0 0 22px;
  font-family: var(--sans);
}

.link-arrow {
  display: inline-block;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-2);
  padding-bottom: 3px;
  transition: opacity .2s;
}
.link-arrow:hover { opacity: .6; }

/* ---------------------------------------------------------- 顶栏 */

.topbar {
  border-bottom: 1px solid var(--rule);
  background: rgba(250, 248, 243, .9);
  backdrop-filter: saturate(1.4) blur(8px);
  position: sticky;
  top: 0;
  z-index: 40;
}
.topbar__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 66px;
}
.mark {
  font-family: var(--serif);
  font-size: 20px;
  letter-spacing: .26em;
  text-decoration: none;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.mark__dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}
.nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
}
.nav__link {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: .05em;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color .18s, border-color .18s;
}
.nav__link:hover { color: var(--ink); }
.nav__link.is-active { color: var(--ink); border-bottom-color: var(--accent); }

/* 顶栏右侧：游客态（登录 + 免费开始）与登录态（身份 + 退出）二选一 */
.topbar__actions { display: flex; align-items: center; gap: 10px; flex: none; }
.topbar__guest { display: flex; align-items: center; gap: 10px; }
.topbar__user { display: none; align-items: center; gap: 12px; }
body.is-auth .topbar__guest { display: none; }
body.is-auth .topbar__user { display: flex; }
.topbar__who {
  font-size: 13px;
  color: var(--muted);
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 880px) {
  .nav { display: none; }
  .topbar__actions { margin-left: auto; }
  .topbar__who { max-width: 120px; }
}

/* ---------------------------------------------------------- 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: .06em;
  line-height: 1;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  background: transparent;
  color: var(--ink);
  transition: background .2s, color .2s, border-color .2s;
}
.btn--solid { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--paper { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn--paper:hover { background: transparent; color: var(--paper); border-color: var(--paper); }
.btn--wx { width: 100%; justify-content: center; border-color: #2BA245; color: #2BA245; }
.btn--wx:hover { background: #2BA245; color: #fff; }
.btn--sm { padding: 9px 16px; font-size: 13px; }
.btn--block { width: 100%; justify-content: center; }
.wx-ico { width: 17px; height: 17px; flex: none; }

/* ---------------------------------------------------------- 胶片帧母题 */

.filmstrip {
  display: flex;
  gap: 8px;
  padding: 16px 12px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  position: relative;
}
.filmstrip::before,
.filmstrip::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; height: 5px;
  background-image: radial-gradient(circle, var(--rule-2) 1.3px, transparent 1.4px);
  background-size: 12px 5px;
  opacity: .85;
}
.filmstrip::before { top: 5px; }
.filmstrip::after { bottom: 5px; }
.frame {
  flex: 1 1 0;
  aspect-ratio: 16 / 9;
  border-radius: 2px;
  border: 1px solid var(--rule-2);
  overflow: hidden;
  position: relative;
}
.frame.is-open {
  background: linear-gradient(145deg, #F0ECE2, #E3DED0);
}
.frame.is-open::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(30,77,62,.16) 0 9px, transparent 10px),
    linear-gradient(180deg, transparent 55%, rgba(22,21,15,.05));
}
.frame.is-sealed {
  background: repeating-linear-gradient(135deg, #E7E2D5 0 7px, #F1EDE3 7px 14px);
}
.frame.is-sealed::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(22,21,15,.05));
}

/* ---------------------------------------------------------- Hero */

.hero {
  padding: 76px 0 66px;
  border-bottom: 1px solid var(--rule);
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
  gap: 64px;
  align-items: end;
}
.hero__h1 {
  font-size: clamp(34px, 5.2vw, 58px);
  line-height: 1.22;
  letter-spacing: .01em;
  max-width: 14em;
  margin-bottom: 26px;
}
.hero__lede {
  font-size: 16.5px;
  color: var(--muted);
  max-width: 40em;
  line-height: 1.95;
  margin-bottom: 34px;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.hero__note {
  font-size: 12.5px;
  color: var(--muted-2);
  max-width: 42em;
  line-height: 1.8;
  margin: 0;
}
.hero__stripwrap { margin-bottom: 26px; }
.hero__stripnote {
  font-size: 12.5px;
  color: var(--muted-2);
  line-height: 1.8;
  margin: 14px 0 0;
}
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.stat { background: var(--paper); padding: 18px 16px; }
.stat__v {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.1;
  color: var(--accent);
}
.stat__l {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.7;
  margin-top: 8px;
}
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 44px; }
  .hero { padding: 52px 0 46px; }
}

/* ---------------------------------------------------------- 分栏（双面） */

.split { padding: 66px 0; border-bottom: 1px solid var(--rule); }
.split__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.split__col { background: var(--paper); padding: 40px 38px 44px; }
.split__who {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--accent);
  margin: 0 0 18px;
}
.split__h {
  font-size: 23px;
  line-height: 1.5;
  margin-bottom: 22px;
  max-width: 16em;
}
.split__list { list-style: none; padding: 0; margin: 0 0 26px; }
.split__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 11px;
}
.split__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 13px;
  width: 9px; height: 1px;
  background: var(--accent);
}
@media (max-width: 800px) { .split__grid { grid-template-columns: 1fr; } .split__col { padding: 30px 24px; } }

/* ---------------------------------------------------------- 深色区块 */

.band { padding: 64px 0; border-bottom: 1px solid var(--rule); }
.band--ink { background: var(--ink); color: var(--paper); border-bottom: 0; }
.band--ink a { color: var(--paper); }
.band--ink .link-arrow { color: var(--paper); border-bottom-color: rgba(250,248,243,.5); }
.band__kicker {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
  margin: 0 0 30px;
}
.band__kicker--light { color: rgba(250,248,243,.55); }
.band__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 46px;
  margin-bottom: 38px;
}
.band__no {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--accent);
  letter-spacing: .1em;
  display: block;
  margin-bottom: 16px;
}
.band--ink .band__no { color: #7FB39B; }
.band__item h3 { font-size: 20px; margin-bottom: 12px; }
.band__item p { font-size: 14.5px; color: var(--muted); line-height: 1.9; margin: 0; }
.band--ink .band__item p { color: rgba(250,248,243,.66); }
.band__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.band__h3 { font-size: clamp(22px, 3vw, 30px); line-height: 1.45; max-width: 22em; }
@media (max-width: 800px) { .band__grid { grid-template-columns: 1fr; gap: 34px; } }

/* ---------------------------------------------------------- 区块 */

.section { padding: 64px 0; }
.section--top { padding-top: 44px; }
.section--center { padding: 110px 0; }
.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
}
.section__title { font-size: 25px; }

/* ---------------------------------------------------------- 标签 / 卡片 */

.tag {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--muted);
  border: 1px solid var(--rule-2);
  border-radius: 2px;
  padding: 3px 9px;
  line-height: 1.7;
}
.tag--strong { color: var(--accent); border-color: var(--accent-2); background: var(--accent-bg); }

.tgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
@media (max-width: 900px) { .tgrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .tgrid { grid-template-columns: 1fr; } }

.tcard {
  position: relative;
  background: var(--paper);
  padding: 30px 28px 26px;
  display: flex;
  flex-direction: column;
  transition: background .2s;
}
.tcard:hover { background: #FFFDF8; }
.tcard__hit { position: absolute; inset: 0; z-index: 1; }
.tcard__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.tcard__code {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--accent);
}
.tcard__title { font-size: 19px; line-height: 1.5; margin-bottom: 12px; }
.tcard__summary { font-size: 13.5px; color: var(--muted); line-height: 1.85; margin-bottom: 22px; flex: 1; }
.tcard__foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}
.tcard__stage { font-size: 12px; color: var(--muted); }
.tcard__link {
  font-size: 12.5px;
  color: var(--accent);
  letter-spacing: .04em;
  transition: transform .2s;
}
.tcard:hover .tcard__link { transform: translateX(3px); }

/* ---------------------------------------------------------- 筛选 */

.filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--rule);
}
.filters__label { font-size: 12px; letter-spacing: .18em; color: var(--muted-2); margin-right: 6px; }
.chip {
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--rule-2);
  border-radius: 999px;
  padding: 6px 15px;
  cursor: pointer;
  transition: all .18s;
}
.chip:hover { border-color: var(--ink-3); color: var(--ink); }
.chip.is-on { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.filters__ops { display: flex; flex-wrap: wrap; gap: 8px; margin-left: 10px; }
.filters__ops .chip.is-on { background: var(--accent); border-color: var(--accent); }
.tgrid__empty { text-align: center; color: var(--muted-2); padding: 48px 0; font-size: 14px; }

/* ---------------------------------------------------------- 机构 */

.frow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(250,248,243,.16);
  border: 1px solid rgba(250,248,243,.16);
}
.fgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
@media (max-width: 900px) { .frow, .fgrid { grid-template-columns: 1fr; } }

.firmcard {
  background: var(--paper);
  padding: 30px 28px;
  position: relative;
  display: block;
  text-decoration: none;
  transition: background .2s;
}
.band--ink .firmcard { background: var(--ink); }
.firmcard:hover { background: #FFFDF8; }
.band--ink .firmcard:hover { background: var(--ink-2); }
.firmcard__mark {
  width: 46px; height: 46px;
  border: 1px solid var(--rule-2);
  border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif);
  font-size: 17px;
  color: var(--accent);
  margin-bottom: 20px;
}
.band--ink .firmcard__mark { border-color: rgba(250,248,243,.25); color: #7FB39B; }
.firmcard__name { font-size: 19px; margin-bottom: 6px; }
.firmcard__en { font-size: 11.5px; letter-spacing: .14em; color: var(--muted-2); margin-bottom: 16px; }
.band--ink .firmcard__en { color: rgba(250,248,243,.45); }
.firmcard__tag { font-size: 14px; color: var(--muted); line-height: 1.8; margin-bottom: 18px; }
.band--ink .firmcard__tag { color: rgba(250,248,243,.7); }
.firmcard__foot {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-top: 14px; border-top: 1px solid var(--rule);
  font-size: 12px; color: var(--muted-2);
}
.band--ink .firmcard__foot { border-top-color: rgba(250,248,243,.16); color: rgba(250,248,243,.45); }

.firmhead {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  padding-top: 8px;
}
.firmhead__mark {
  width: 76px; height: 76px;
  border: 1px solid var(--rule-2);
  border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif);
  font-size: 26px;
  color: var(--accent);
}
.firmhead__en { font-size: 12px; letter-spacing: .16em; color: var(--muted-2); margin: 8px 0 0; }
.firmhead__tag {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--ink-2);
  border-left: 2px solid var(--accent);
  padding-left: 14px;
  margin: 20px 0 0;
}
@media (max-width: 700px) { .firmhead { grid-template-columns: 1fr; gap: 18px; } }

/* ---------------------------------------------------------- 观察列表 */

.nlist { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--rule); }
.noteitem {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) minmax(0, .8fr);
  gap: 24px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}
.noteitem__date { font-size: 12.5px; color: var(--muted-2); letter-spacing: .06em; }
.noteitem__title {
  font-family: var(--serif);
  font-size: 18px;
  text-decoration: none;
  line-height: 1.5;
}
.noteitem__title:hover { color: var(--accent); }
.noteitem__kicker { font-size: 13px; color: var(--muted); }
@media (max-width: 760px) {
  .noteitem { grid-template-columns: 1fr; gap: 8px; }
}
.nlist--full .ncard {
  padding: 30px 0;
  border-bottom: 1px solid var(--rule);
}
.ncard__date { font-size: 12.5px; color: var(--muted-2); letter-spacing: .08em; }
.ncard__title { font-size: 24px; margin: 10px 0 8px; }
.ncard__title a { text-decoration: none; }
.ncard__title a:hover { color: var(--accent); }
.ncard__kicker { font-size: 14px; color: var(--muted); margin: 0; }

.note { padding-top: 52px; padding-bottom: 70px; }
.note__kicker { margin-bottom: 14px; }
.note__h1 { font-size: clamp(28px, 4vw, 42px); line-height: 1.35; max-width: 22em; margin-bottom: 16px; }
.note__date { font-size: 13px; color: var(--muted-2); letter-spacing: .08em; padding-bottom: 26px; border-bottom: 1px solid var(--rule); margin-bottom: 34px; }
.note__foot { margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--rule); }

/* ---------------------------------------------------------- 通用页头 */
/* 栏目页头部：深墨绿底色色块，内容仍走标准 .wrap（1160px 居中），
   保证标题与下方正文、卡片网格左边缘对齐。
   注意：.pagehead__inner 不能设 max-width:100%，否则会撑成全宽，
   与下方 1160px 的内容区错位。 */

.pagehead {
  padding: 58px 0 46px;
  background: var(--accent);
  color: var(--paper);
}
.pagehead--tight { padding: 44px 0 40px; }
.pagehead__h1 { font-size: clamp(30px, 4.4vw, 46px); line-height: 1.3; max-width: 20em; margin-bottom: 20px; }
.pagehead__lede { font-size: 16px; color: rgba(250, 248, 243, .8); max-width: 42em; line-height: 1.95; margin: 0; }
.pagehead .kicker { color: rgba(250, 248, 243, .62); }
.crumbs {
  display: flex;
  gap: 10px;
  font-size: 12.5px;
  color: var(--muted-2);
  margin-bottom: 26px;
}
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }

/* ---------------------------------------------------------- 正文 */

/* .doc 常与 .wrap 同元素使用：只改上下内边距，不能覆盖 .wrap 的横向内边距与宽度 */
.doc { padding-top: 52px; padding-bottom: 76px; }
.doc--note { max-width: 720px; }
.doc h2, .doc__h2 {
  font-size: 23px;
  margin: 52px 0 18px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
}
.doc > h2:first-child, .doc > .doc__h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.doc p { font-size: 15.5px; line-height: 2.05; color: var(--ink-2); max-width: 44em; }
.doc__lead { font-size: 16.5px !important; color: var(--muted) !important; }
.doc__ol, .doc__ul { padding-left: 22px; margin: 0 0 1.4em; }
.doc__ol li, .doc__ul li {
  font-size: 15px;
  line-height: 2;
  color: var(--ink-2);
  margin-bottom: 10px;
  max-width: 44em;
}
.doc__ol li::marker { color: var(--muted-2); font-family: var(--serif); }
.doc__ul li::marker { color: var(--accent); }
.doc h3 { font-size: 17.5px; margin: 30px 0 10px; }
/* :not(.btn)：.doc a (0,1,1) 会压过 .btn--solid (0,1,0)，把实心按钮文字染成墨绿配黑底 */
.doc a:not(.btn) { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--rule-2); }
.doc a:not(.btn):hover { border-bottom-color: var(--accent); }
.doc hr { border: 0; border-top: 1px solid var(--rule); margin: 34px 0; }

.doc__table { width: 100%; border-collapse: collapse; margin: 0 0 1.6em; font-size: 14px; }
.doc__table th, .doc__table td {
  border: 1px solid var(--rule);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.75;
}
.doc__table th { background: var(--paper-2); font-weight: 600; letter-spacing: .04em; }
.doc__table td { color: var(--ink-2); }
.doc__table td:first-child { color: var(--ink); white-space: nowrap; }

.warn {
  border: 1px solid var(--rule-2);
  border-left: 3px solid var(--accent);
  background: var(--paper-2);
  padding: 24px 26px;
  margin: 0 0 1.6em;
}
.warn p { margin-bottom: .6em; }
.warn p:last-child { margin-bottom: 0; }
.warn__t { font-weight: 600; letter-spacing: .04em; }

.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 0 0 1.8em;
}
.flow__step { background: var(--paper); padding: 24px 20px; }
.flow__no {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}
.flow__step b { display: block; font-size: 15px; margin-bottom: 8px; }
.flow__step span { font-size: 13px; color: var(--muted); line-height: 1.8; }
@media (max-width: 800px) { .flow { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .flow { grid-template-columns: 1fr; } }

.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 0 0 2em;
}
.cover { background: var(--paper); padding: 26px 24px 22px; }
.cover__no { font-family: var(--serif); font-size: 12px; letter-spacing: .16em; color: var(--muted-2); display: block; margin-bottom: 14px; }
.cover h3 { font-size: 18px; margin-bottom: 10px; }
.cover p { font-size: 13.5px; color: var(--muted); line-height: 1.85; margin-bottom: 14px; }
.cover__n { font-size: 11.5px; letter-spacing: .1em; color: var(--accent); }
@media (max-width: 900px) { .cover-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .cover-grid { grid-template-columns: 1fr; } }

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 0 0 2em;
}
.value { background: var(--paper); padding: 28px 26px; }
.value h3 { font-size: 18px; margin-bottom: 10px; }
.value p { font-size: 14.5px; color: var(--muted); line-height: 1.9; margin: 0; }
@media (max-width: 700px) { .value-grid { grid-template-columns: 1fr; } }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 0 0 2.4em;
}
.contact { background: var(--paper); padding: 28px 26px; }
.contact__who { font-size: 12px; letter-spacing: .2em; color: var(--accent); margin: 0 0 14px; }
.contact h3 { font-size: 17.5px; margin-bottom: 12px; }
.contact p { font-size: 14px; color: var(--muted); line-height: 1.9; margin-bottom: 16px; }
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-lines { border-top: 1px solid var(--rule); margin-bottom: 2.4em; }
.contact-line {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 15px;
}
.contact-line > span { color: var(--muted-2); font-size: 13px; letter-spacing: .1em; }
.contact-line a { color: var(--accent); text-decoration: none; }
@media (max-width: 560px) { .contact-line { grid-template-columns: 1fr; gap: 6px; } }

/* ---------------------------------------------------------- 表单 */

.field { display: block; margin-bottom: 16px; }
.field__label {
  display: block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: 7px;
}
.field__label b { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--ink);
  background: #FFFDF8;
  border: 1px solid var(--rule-2);
  border-radius: 2px;
  padding: 12px 14px;
  line-height: 1.6;
  transition: border-color .18s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent-2);
}
.field textarea { resize: vertical; }
.field--inline { margin-bottom: 0; }

.inline-form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px;
  max-width: 720px;
}
.inline-form .field--inline { min-width: 210px; }
.inline-form__toast { font-size: 13px; color: var(--accent); margin: 0; width: 100%; }

.bigform { max-width: 760px; }
.bigform__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
}
@media (max-width: 640px) { .bigform__grid { grid-template-columns: 1fr; } }
.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
  margin: 6px 0 22px;
}
.check input { margin-top: 5px; accent-color: var(--accent); }
.check a { color: var(--accent); }
.bigform__toast { font-size: 13.5px; color: var(--accent); margin: 14px 0 0; }

/* ---------------------------------------------------------- teaser 详情 */

.tdetail { padding-top: 40px; padding-bottom: 80px; }
.tdetail__head { max-width: 780px; margin-bottom: 46px; }
.tdetail__labels { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tdetail__code {
  font-family: var(--serif);
  font-size: clamp(34px, 5vw, 52px);
  letter-spacing: .06em;
  line-height: 1.15;
  margin-bottom: 12px;
}
.tdetail__title { font-family: var(--serif); font-size: 21px; line-height: 1.55; color: var(--ink-2); margin-bottom: 14px; }
.tdetail__lede { font-size: 16px; color: var(--muted); line-height: 1.95; max-width: 38em; margin-bottom: 18px; }
.tdetail__byfirm { font-size: 13.5px; color: var(--muted); margin: 0 0 30px; }
.tdetail__byfirm a { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--rule-2); }
.tdetail__byfirmnote { color: var(--muted-2); font-size: 12.5px; }
.tdetail__strip { max-width: 460px; }
.tdetail__stripnote { font-size: 12.5px; color: var(--muted-2); margin: 14px 0 0; line-height: 1.8; }

.tdetail__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 56px;
  align-items: start;
}
@media (max-width: 960px) { .tdetail__grid { grid-template-columns: 1fr; gap: 40px; } }

.tdetail__public h2 { font-size: 20px; margin-bottom: 16px; padding-top: 0; border-top: 0; }
.points { list-style: none; padding: 0; margin: 0 0 38px; }
.points li {
  position: relative;
  padding: 13px 0 13px 26px;
  border-bottom: 1px solid var(--rule);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}
.points li::before {
  content: "";
  position: absolute;
  left: 0; top: 25px;
  width: 12px; height: 1px;
  background: var(--accent);
}
.tdetail__body h2 { font-size: 19px; margin: 34px 0 12px; padding-top: 18px; }
.tdetail__body p { font-size: 15.5px; line-height: 2; color: var(--ink-2); max-width: 42em; }
.tdetail__body h3 { font-size: 16px; margin: 24px 0 8px; }

/* 密封层 */
.seal { position: relative; margin-top: 8px; }
.seal__content {
  filter: blur(7px);
  opacity: .5;
  user-select: none;
  pointer-events: none;
  transition: filter .45s ease, opacity .45s ease;
}
.seal__cover {
  position: absolute;
  inset: -8px -8px -8px -8px;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 28px;
  gap: 4px;
  border: 1px solid var(--rule);
  border-radius: 2px;
}
.seal__frames { width: 260px; margin-bottom: 22px; }
.seal__msg { font-family: var(--serif); font-size: 18px; margin: 0 0 6px; }
.seal__hint { font-size: 13.5px; color: var(--muted); margin: 0 0 20px; }
.seal__alt { font-size: 12.5px; color: var(--muted-2); margin: 16px 0 0; }
.seal__alt a { color: var(--accent); }
.seal__body h2 { font-size: 19px; margin: 0 0 12px; padding-top: 0; border-top: 0; }
.seal__body p { font-size: 15px; line-height: 2; color: var(--ink-2); max-width: 42em; }
.seal__tip { font-size: 13px; color: var(--muted); line-height: 1.9; max-width: 42em; margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--rule-2); }

.seal.is-open .seal__content { filter: none; opacity: 1; user-select: auto; pointer-events: auto; }
.seal.is-open .seal__cover { display: none; }

.specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 26px 0 0;
}
.spec { background: var(--paper); padding: 16px 18px; }
.spec dt { font-size: 11.5px; letter-spacing: .12em; color: var(--muted-2); margin-bottom: 7px; }
.spec dd { margin: 0; font-size: 14.5px; line-height: 1.8; color: var(--ink-2); }
@media (max-width: 560px) { .specs { grid-template-columns: 1fr; } }

/* 侧栏 */
.tdetail__side { position: sticky; top: 92px; display: flex; flex-direction: column; gap: 26px; }
@media (max-width: 960px) { .tdetail__side { position: static; } }

.unlock {
  border: 1px solid var(--rule-2);
  background: #FFFDF8;
  padding: 26px 24px 24px;
}
.unlock__h { font-size: 18px; margin-bottom: 10px; }
.unlock__desc { font-size: 13.5px; color: var(--muted); line-height: 1.9; margin-bottom: 20px; }
.unlock__ways { padding-bottom: 20px; margin-bottom: 20px; border-bottom: 1px dashed var(--rule-2); }
.unlock__waysnote { font-size: 12px; color: var(--muted-2); line-height: 1.8; margin: 10px 0 0; }
.unlock__form .field { margin-bottom: 14px; }
.unlock__legal { font-size: 11.5px; color: var(--muted-2); line-height: 1.8; margin: 14px 0 0; }
.unlock__legal a { color: var(--muted); }
.unlock__toast { font-size: 13px; color: var(--accent); margin: 12px 0 0; line-height: 1.7; }
.unlock__toast.is-err { color: #A5442B; }

.teaser__meta { border-top: 1px solid var(--rule); padding-top: 20px; }
.teaser__metat { font-size: 11.5px; letter-spacing: .14em; color: var(--muted-2); margin-bottom: 14px; }
.metas { margin: 0; }
.metas > div {
  display: flex; justify-content: space-between; gap: 14px;
  padding: 9px 0; border-bottom: 1px solid var(--rule);
  font-size: 13.5px;
}
.metas dt { color: var(--muted-2); margin: 0; }
.metas dd { margin: 0; color: var(--ink-2); text-align: right; }
.metas a { color: var(--accent); text-decoration: none; }
.teaser__disclaimer { font-size: 11.5px; color: var(--muted-2); line-height: 1.8; margin: 16px 0 0; }

/* ---------------------------------------------------------- 微信授权演示 */

.wxmock {
  position: fixed;
  inset: 0;
  background: rgba(22, 21, 15, .55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 90;
}
.wxmock__card {
  background: var(--paper);
  border-radius: 3px;
  padding: 30px 30px 26px;
  max-width: 420px;
  width: 100%;
  border: 1px solid var(--rule-2);
}
.wxmock__t { font-family: var(--serif); font-size: 19px; margin: 0 0 12px; }
.wxmock__d { font-size: 13.5px; color: var(--muted); line-height: 1.85; margin: 0 0 12px; }
.wxmock__list { list-style: none; padding: 0; margin: 0 0 16px; }
.wxmock__list li {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.8;
  padding: 7px 0;
  border-bottom: 1px dashed var(--rule);
}
.wxmock__list b { color: var(--accent); font-family: var(--mono, monospace); }
.wxmock__ok { margin-top: 6px; }

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

.notfound { text-align: center; max-width: 560px; }
.notfound__code { font-family: var(--serif); font-size: 64px; color: var(--rule-2); margin: 0 0 10px; line-height: 1; }
.notfound__h { font-size: 26px; margin-bottom: 14px; }
.notfound__p { font-size: 15px; color: var(--muted); margin-bottom: 28px; }
.notfound__cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------------------------------------------------------- 页脚 */

.site-foot {
  border-top: 1px solid var(--rule);
  padding: 54px 0 26px;
  background: var(--paper);
}
.site-foot__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.site-foot__brand .mark { font-size: 17px; margin-bottom: 14px; }
.site-foot__tag { font-size: 13.5px; color: var(--muted); margin: 0 0 4px; }
.site-foot__addr { font-size: 13px; color: var(--muted-2); margin: 0; }
.site-foot__col { display: flex; flex-direction: column; gap: 10px; }
.site-foot__col h4 {
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted-2);
  margin-bottom: 4px;
}
.site-foot__col a { font-size: 14px; color: var(--ink-2); text-decoration: none; }
.site-foot__col a:hover { color: var(--accent); }
.site-foot__col span { font-size: 14px; color: var(--ink-2); }
.site-foot__note { color: var(--muted-2) !important; font-size: 12.5px !important; }
.site-foot__legal {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-size: 12px;
  color: var(--muted-2);
}
@media (max-width: 760px) { .site-foot__grid { grid-template-columns: 1fr; gap: 30px; } }

/* ---------------------------------------------------- 备案与版权行（页脚） */

.site-foot__legal { flex-direction: column; gap: 8px; }
.site-foot__icp { display: flex; flex-wrap: wrap; gap: 14px; }
.site-foot__icp a,
.site-foot__icp span {
  font-size: 12px;
  color: var(--muted-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.site-foot__icp a:hover { color: var(--accent); }
.site-foot__copy { font-size: 12px; color: var(--muted-2); }

/* ---------------------------------------------------------- 样本页提示条 */

.notice {
  /* 满宽色块：抵消 .wrap 的水平内边距，使色块与页面主体同宽、左边缘对齐 */
  margin: -8px calc(-1 * var(--pad)) 34px;
  padding: 18px var(--pad);
  background: var(--accent);
  color: var(--paper);
  border: 0;
  font-size: 13.5px;
  line-height: 1.85;
}
.notice b { color: #fff; }

/* -------------------------------------------------------------- 客户名单 */

.clients {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 0 0 1.2em;
}
.clients span {
  background: var(--paper);
  padding: 14px 12px;
  font-size: 13.5px;
  color: var(--ink-2);
  text-align: center;
  line-height: 1.5;
}
@media (max-width: 900px) { .clients { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .clients { grid-template-columns: repeat(2, 1fr); } }

/* ------------------------------------------------------------ 注释与统计 */

.section__note {
  font-size: 12.5px;
  color: var(--muted-2);
  line-height: 1.8;
  margin: 0 0 1em;
}
.section__note a { color: var(--accent); }
.band__note {
  font-size: 12.5px;
  color: rgba(250, 248, 243, .5);
  line-height: 1.8;
  margin: 18px 0 0;
}
.band__note a { color: rgba(250, 248, 243, .75); }
.stats--light {
  background: rgba(250, 248, 243, .14);
  border-color: rgba(250, 248, 243, .18);
}
.stats--light .stat { background: var(--ink); }
.stats--light .stat__v { color: #7FB39B; }
.stats--light .stat__l { color: rgba(250, 248, 243, .55); }

/* ------------------------------------------------------------ 咨询表单 */

.form { max-width: 560px; margin: 1.4em 0 0; }
.form .btn { margin-top: 6px; }
.form__legal {
  font-size: 12.5px;
  color: var(--muted-2);
  line-height: 1.8;
  margin: 14px 0 0;
}
.form__legal a { color: var(--accent); }
.form__toast {
  margin-top: 12px;
  font-size: 13px;
  color: var(--accent);
  border: 1px solid var(--accent);
  background: var(--accent-bg);
  padding: 10px 14px;
}
.form__toast.is-err { color: #8A3025; border-color: #C9A197; background: #F6ECE9; }

/* -------------------------------------------------------- 正文三级标题 */

.doc__h3 { font-size: 17.5px; margin: 30px 0 10px; }

/* -------------------------------------------------------- 定价两档 */

.section__lead {
  font-size: 16.5px;
  color: var(--muted);
  line-height: 1.95;
  max-width: 46em;
  margin: -4px 0 34px;
}
.band__lead {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.9;
  max-width: 40em;
  margin: 10px 0 0;
}
.band--ink .band__lead { color: rgba(250, 248, 243, .66); }
.band__cta__btns { display: flex; gap: 12px; flex-wrap: wrap; flex: none; }

.tiers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 760px) { .tiers { grid-template-columns: 1fr; } }

.tier {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 34px 32px 32px;
}
.tier--pro { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.tier__name { font-size: 12px; letter-spacing: .2em; color: var(--muted-2); }
.tier--pro .tier__name { color: rgba(250, 248, 243, .5); }

.tier__price { margin: 0; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.tier__price b {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.1;
}
/* .doc p 会把 p.tier__price 染成 --ink-2，深色卡片上价格必须跟卡片色走（特异性需压过 .doc p） */
.tier .tier__price { color: inherit; }
.tier__price span { font-size: 13px; color: var(--muted); }
.tier--pro .tier__price span { color: rgba(250, 248, 243, .6); }

.tier__desc { margin: 0; font-size: 14.5px; line-height: 1.95; color: var(--muted); flex: 1; }
.tier--pro .tier__desc { color: rgba(250, 248, 243, .7); }

.tier .btn { align-self: stretch; justify-content: center; }
.tier--pro .btn--ghost { color: var(--paper); border-color: rgba(250, 248, 243, .5); }
.tier--pro .btn--ghost:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

.doc__cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }

/* -------------------------------------------------------- 登录 / 注册 */

.auth { padding: 62px 0 84px; }
.auth__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 56px;
  align-items: start;
}
@media (max-width: 860px) { .auth__grid { grid-template-columns: 1fr; gap: 40px; } }

.auth__h1 { font-size: clamp(26px, 3.4vw, 36px); margin: 10px 0 12px; }
.auth__lede {
  font-size: 15.5px;
  color: var(--muted);
  line-height: 1.9;
  max-width: 34em;
  margin: 0 0 26px;
}

.auth__tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 26px;
}
.auth__tab {
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--muted);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 10px 16px;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color .18s, border-color .18s;
}
.auth__tab:hover { color: var(--ink); }
.auth__tab.is-active { color: var(--ink); border-bottom-color: var(--accent); }

.auth__form { max-width: 440px; }

.auth__side {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 30px 28px;
}
.auth__side__k { font-size: 12px; letter-spacing: .2em; color: var(--muted-2); margin: 0 0 18px; }
.auth__points { list-style: none; padding: 0; margin: 0 0 22px; }
.auth__points li {
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
  padding: 14px 0;
  border-top: 1px solid var(--rule);
}
.auth__points li:first-child { border-top: 0; padding-top: 0; }
.auth__points b { color: var(--ink); font-weight: 500; }
.auth__side__f { font-size: 13.5px; color: var(--muted); margin: 0; }
.auth__side__f a { color: var(--accent); text-decoration: none; }
.auth__side__f a:hover { text-decoration: underline; }
.auth__side__f span { margin: 0 8px; color: var(--rule-2); }