/* ============================================
   翡翠怎么选 · 设计系统（Mobile First）
   风格：玉白 / 米白 / 墨绿 / 深灰文字 · 顾问型
   ============================================ */

:root {
  --bg: #FAF8F4;            /* 米白底 */
  --bg-card: #FFFFFF;
  --bg-soft: #F3EFE7;       /* 浅玉色块 */
  --ink: #2B2B28;           /* 深灰主文字 */
  --ink-2: #5A5A54;         /* 次级文字 */
  --ink-3: #8C8C84;         /* 弱文字 */
  --green: #2F5D50;         /* 墨绿主色 */
  --green-deep: #1F4238;    /* 深墨绿 */
  --green-soft: #E4EDE8;    /* 墨绿浅底 */
  --gold: #B99A5B;          /* 点缀金（少量） */
  --line: #E8E2D6;
  --danger: #B4453A;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 2px 12px rgba(43, 43, 40, .06);
  --shadow-lg: 0 8px 30px rgba(31, 66, 56, .12);
  --max-w: 760px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.75;
  padding-bottom: 76px; /* 给 sticky CTA 留空间 */
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 18px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 248, 244, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 12px 18px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { font-size: 19px; font-weight: 700; color: var(--green-deep); letter-spacing: .5px; }
.logo em { font-style: normal; color: var(--gold); }
.header-phone {
  display: flex; align-items: center; gap: 6px;
  font-size: 15px; font-weight: 600; color: #fff;
  background: var(--green); padding: 8px 14px; border-radius: 999px;
}

/* ---------- Hero 首屏 ---------- */
.hero {
  background: linear-gradient(175deg, #FBF9F5 0%, #F2EDE2 100%);
  padding: 34px 0 30px;
}
.hero h1 {
  font-size: 34px; line-height: 1.25; letter-spacing: 1px;
  color: var(--green-deep); font-weight: 800;
}
.hero .slogan {
  margin-top: 10px; font-size: 19px; color: var(--ink); font-weight: 600;
}
.hero .slogan em { font-style: normal; color: var(--gold); font-weight: 700; }
.hero .pain {
  margin-top: 16px; font-size: 15.5px; color: var(--ink-2); line-height: 2;
}
.hero .pain span { display: inline-block; margin-right: 4px; }
.hero-contact {
  margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  height: 52px; border-radius: var(--radius); font-size: 17px; font-weight: 700;
  border: none; transition: transform .12s ease;
}
.btn:active { transform: scale(.97); }
.btn-phone { background: var(--green); color: #fff; box-shadow: var(--shadow-lg); }
.btn-phone small { display: block; font-size: 12px; font-weight: 400; opacity: .85; line-height: 1.3; }
.btn-wechat {
  background: var(--bg-card); color: var(--green-deep);
  border: 1.5px solid var(--green); font-size: 15px;
}
.btn-wechat small { display: block; font-size: 12px; font-weight: 400; color: var(--ink-3); line-height: 1.3; }
.hero-note { margin-top: 14px; font-size: 14px; color: var(--ink-3); text-align: center; }

/* ---------- 迷你表单 ---------- */
.mini-form {
  margin-top: 22px; background: var(--bg-card); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.mini-form h2 { font-size: 16px; margin-bottom: 12px; color: var(--green-deep); }
.mini-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.mini-form select, .mini-form input {
  width: 100%; height: 46px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  padding: 0 12px; font-size: 15px; background: #fff; color: var(--ink);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%235A5A54' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}
.mini-form select:first-child { grid-column: span 1; }
.mini-form .submit {
  width: 100%; height: 50px; background: var(--green-deep); color: #fff;
  border: none; border-radius: var(--radius); font-size: 16px; font-weight: 700;
}

/* ---------- 通用 Section ---------- */
section.block { padding: 34px 0 6px; }
.sec-head { margin-bottom: 18px; }
.sec-kicker { font-size: 13px; color: var(--gold); font-weight: 600; letter-spacing: 2px; }
.sec-head h2 { font-size: 24px; color: var(--green-deep); margin-top: 4px; line-height: 1.3; }
.sec-head p { margin-top: 6px; font-size: 14.5px; color: var(--ink-3); }

/* ---------- 七项法 ---------- */
.seven-factors {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px;
}
.factor {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 2px 10px; text-align: center; transition: all .15s;
}
.factor:active { background: var(--green-soft); }
.factor b { display: block; font-size: 20px; color: var(--green-deep); font-weight: 800; }
.factor span { display: block; font-size: 11px; color: var(--ink-3); margin-top: 2px; transform: scale(.9); }
.seven-tip { margin-top: 10px; font-size: 13px; color: var(--ink-3); text-align: center; }

/* ---------- 卡片列表（问题/预算/品类） ---------- */
.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.q-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 15px 14px; display: block; transition: all .15s;
}
.q-card:active { border-color: var(--green); background: #FBFDFC; }
.q-card .q { font-size: 15.5px; font-weight: 600; color: var(--ink); line-height: 1.5; }
.q-card .a { margin-top: 6px; font-size: 13px; color: var(--green); display: flex; align-items: center; gap: 3px; }
.q-card.wide { grid-column: span 2; }

.budget-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.budget-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; text-align: left; transition: all .15s;
}
.budget-card b { font-size: 17px; color: var(--green-deep); }
.budget-card span { display: block; font-size: 12.5px; color: var(--ink-3); margin-top: 4px; }
.budget-card:active { border-color: var(--green); }

/* ---------- 案例卡 ---------- */
.case-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 12px;
}
.case-img {
  height: 150px; overflow: hidden; position: relative;
  background: linear-gradient(135deg, #E9EFE9 0%, #DCE5DC 100%);
}
.case-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-body { padding: 14px 16px 16px; }
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.tag {
  font-size: 12px; padding: 3px 10px; border-radius: 999px;
  background: var(--green-soft); color: var(--green-deep); font-weight: 600;
}
.tag.gold { background: #F5EDDD; color: #8A6D33; }
.case-body h3 { font-size: 16.5px; line-height: 1.5; color: var(--ink); }
.case-body p { margin-top: 6px; font-size: 14px; color: var(--ink-2); }

/* ---------- FAQ ---------- */
.faq-item {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  margin-bottom: 10px; overflow: hidden;
}
.faq-q {
  width: 100%; background: none; border: none; text-align: left;
  padding: 15px 16px; font-size: 15.5px; font-weight: 600; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
}
.faq-q::after {
  content: "+"; font-size: 20px; color: var(--green); flex-shrink: 0;
  transition: transform .2s;
}
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  display: none; padding: 0 16px 15px; font-size: 14.5px; color: var(--ink-2);
}
.faq-item.open .faq-a { display: block; }

/* ---------- 主理人 ---------- */
.master-card {
  background: linear-gradient(160deg, #FFFFFF 0%, #F6F3EC 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 18px; display: flex; gap: 16px; align-items: flex-start;
}
.avatar {
  width: 72px; height: 72px; border-radius: 50%; flex-shrink: 0;
  background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; font-weight: 800;
}
.master-info h3 { font-size: 19px; color: var(--green-deep); }
.master-info .title { font-size: 13px; color: var(--gold); font-weight: 600; margin-top: 2px; }
.master-info p { font-size: 14px; color: var(--ink-2); margin-top: 8px; }
.master-cta { margin-top: 14px; display: flex; gap: 10px; }
.master-cta .btn { height: 44px; font-size: 15px; flex: 1; }
.btn-ghost { background: none; border: 1.5px solid var(--green); color: var(--green-deep); }

/* ---------- 最终转化 ---------- */
.final-cta {
  background: var(--green-deep); border-radius: var(--radius); color: #fff;
  padding: 26px 20px; text-align: center;
}
.final-cta h2 { font-size: 22px; }
.final-cta p { margin-top: 8px; font-size: 14.5px; opacity: .85; }
.final-cta .btn { width: 100%; margin-top: 18px; height: 52px; background: #fff; color: var(--green-deep); }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 44px; background: #23231F; color: #B9B9B0;
  padding: 30px 0 24px; font-size: 13.5px;
}
.site-footer .wrap { padding: 0 18px; }
.footer-brand { font-size: 17px; color: #fff; font-weight: 700; }
.footer-slogan { color: #8F8F86; margin-top: 4px; }
.footer-links { margin-top: 16px; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.footer-links a { color: #B9B9B0; font-size: 13.5px; }
.footer-contact { margin-top: 18px; padding-top: 16px; border-top: 1px solid #3A3A34; line-height: 2; }
.footer-contact a { color: #D8D8CF; }
.footer-copy { margin-top: 14px; font-size: 12px; color: #6E6E66; }

/* ---------- Sticky CTA Bar ---------- */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--line); border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -4px 16px rgba(0,0,0,.06);
}
.sticky-cta a {
  height: 58px; display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 16.5px; font-weight: 700;
}
.sticky-cta .call { background: var(--green); color: #fff; }
.sticky-cta .check { background: #fff; color: var(--green-deep); }

/* ---------- 文章页 ---------- */
.breadcrumb {
  padding: 14px 0 0; font-size: 12.5px; color: var(--ink-3);
}
.breadcrumb a { color: var(--ink-3); }
.article-head { padding: 14px 0 6px; }
.article-head h1 { font-size: 26px; line-height: 1.35; color: var(--green-deep); }
.article-meta {
  margin-top: 12px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 13px; color: var(--ink-3);
}
.article-meta .author { display: flex; align-items: center; gap: 6px; font-weight: 600; color: var(--ink-2); }
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-3); }

.quick-answer {
  margin-top: 16px; background: var(--green-soft); border-left: 4px solid var(--green);
  border-radius: 0 var(--radius) var(--radius) 0; padding: 16px;
}
.quick-answer .label { font-size: 12.5px; font-weight: 700; color: var(--green-deep); letter-spacing: 1px; }
.quick-answer p { margin-top: 6px; font-size: 15.5px; color: var(--ink); line-height: 1.8; }

.article-body { padding: 8px 0 20px; }
.article-body h2 {
  margin: 28px 0 12px; font-size: 20px; color: var(--green-deep);
  padding-left: 10px; border-left: 4px solid var(--green); line-height: 1.4;
}
.article-body h3 { margin: 20px 0 8px; font-size: 16.5px; color: var(--ink); }
.article-body p { margin: 10px 0; font-size: 16px; line-height: 1.9; color: #3A3A35; }
.article-body ul, .article-body ol { margin: 10px 0 10px 20px; font-size: 16px; color: #3A3A35; }
.article-body li { margin: 6px 0; line-height: 1.8; }
.article-body strong { color: var(--green-deep); }

.step-list { counter-reset: step; list-style: none; margin: 14px 0; }
.step-list li {
  counter-increment: step; position: relative; padding: 12px 0 12px 44px;
  border-bottom: 1px dashed var(--line); font-size: 15.5px;
}
.step-list li::before {
  content: counter(step); position: absolute; left: 0; top: 12px;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--green-soft); color: var(--green-deep);
  font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

/* 移动端表格卡片化：横向可滑动 */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 14px 0; border-radius: var(--radius-sm); border: 1px solid var(--line); }
table { border-collapse: collapse; width: 100%; min-width: 480px; background: #fff; font-size: 14px; }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); }
th { background: var(--green-soft); color: var(--green-deep); font-weight: 700; white-space: nowrap; }
td { color: var(--ink-2); }
tr:last-child td { border-bottom: none; }

/* 主理人观点块 */
.expert-box {
  margin: 20px 0; background: var(--bg-card); border: 1px solid var(--gold);
  border-radius: var(--radius); padding: 16px;
}
.expert-box .label { font-size: 12.5px; color: #8A6D33; font-weight: 700; letter-spacing: 1px; }
.expert-box p { margin-top: 8px; font-size: 15px; color: var(--ink); line-height: 1.85; }

/* 文中 CTA */
.mid-cta {
  margin: 24px 0; background: var(--bg-soft); border-radius: var(--radius);
  padding: 18px 16px; text-align: center;
}
.mid-cta p { font-size: 14.5px; color: var(--ink-2); margin: 4px 0; }
.mid-cta .btn { width: 100%; max-width: 320px; margin: 12px auto 0; height: 48px; background: var(--green); color: #fff; }

/* 相关阅读 */
.related { display: grid; grid-template-columns: 1fr; gap: 8px; }
.related a {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 13px 15px; font-size: 15px; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center;
}
.related a::after { content: "›"; color: var(--ink-3); font-size: 18px; }

/* ---------- 完整表单页 ---------- */
.form-page { padding: 6px 0 30px; }
.form-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 18px; }
.form-card .field { margin-bottom: 16px; }
.form-card label { display: block; font-size: 14.5px; font-weight: 600; margin-bottom: 7px; color: var(--ink); }
.form-card label .req { color: var(--danger); margin-left: 2px; }
.form-card input[type=text], .form-card input[type=tel], .form-card select, .form-card textarea {
  width: 100%; min-height: 48px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  padding: 11px 13px; font-size: 16px; background: #fff; color: var(--ink); font-family: inherit;
}
.form-card textarea { min-height: 90px; resize: vertical; }
.form-card input:focus, .form-card select:focus, .form-card textarea:focus {
  outline: none; border-color: var(--green);
}
.form-card .hint { font-size: 12.5px; color: var(--ink-3); margin-top: 5px; }
.upload-box {
  border: 1.5px dashed var(--line); border-radius: var(--radius-sm); padding: 18px;
  text-align: center; color: var(--ink-3); font-size: 14px; background: #FCFBF8;
  cursor: pointer;
}
.upload-box b { color: var(--green); }
.privacy-row { display: flex; gap: 9px; align-items: flex-start; font-size: 13.5px; color: var(--ink-2); margin: 18px 0; }
.privacy-row input { margin-top: 3px; width: 17px; height: 17px; accent-color: var(--green); }
.privacy-row a { text-decoration: underline; }
.form-submit {
  width: 100%; height: 54px; background: var(--green-deep); color: #fff; border: none;
  border-radius: var(--radius); font-size: 17px; font-weight: 700;
}
/* 微信复制行 */
.wechat-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--green-soft); border-radius: var(--radius-sm); padding: 13px 15px; margin: 16px 0;
}
.wechat-row .num { font-size: 18px; font-weight: 700; color: var(--green-deep); letter-spacing: 1px; }
.wechat-row .copy-btn {
  background: var(--green); color: #fff; border: none; border-radius: 999px;
  padding: 8px 18px; font-size: 14px; font-weight: 600;
}
.copy-tip { text-align: center; font-size: 13px; color: var(--green); height: 18px; margin-bottom: 8px; opacity: 0; transition: opacity .3s; }
.copy-tip.show { opacity: 1; }

/* 成功页 */
.success-view { display: none; text-align: center; padding: 40px 0; }
.success-view.show { display: block; }
.success-icon { width: 64px; height: 64px; margin: 0 auto; border-radius: 50%; background: var(--green-soft); display: flex; align-items: center; justify-content: center; font-size: 30px; color: var(--green); }
.success-view h2 { margin-top: 16px; font-size: 22px; color: var(--green-deep); }
.success-view p { margin-top: 10px; font-size: 15px; color: var(--ink-2); }
.success-view .btn { margin: 20px auto 0; max-width: 280px; }

/* ---------- 断点 ---------- */
@media (min-width: 768px) {
  body { font-size: 17px; padding-bottom: 0; }
  .hero h1 { font-size: 44px; }
  .sticky-cta { display: none; }
  .seven-factors { gap: 10px; }
  .factor { padding: 16px 4px 13px; }
  .card-grid { grid-template-columns: repeat(4, 1fr); }
  .q-card.wide { grid-column: span 2; }
  .budget-list { grid-template-columns: repeat(3, 1fr); }
  .related { grid-template-columns: 1fr 1fr; }
  .case-card { display: grid; grid-template-columns: 200px 1fr; }
  .case-img { height: 100%; min-height: 150px; }
  .header-phone { display: none; }
  .nav-desktop { display: flex !important; gap: 22px; }
  .nav-desktop a { font-size: 15px; color: var(--ink-2); font-weight: 500; }
  .nav-desktop a:hover { color: var(--green-deep); }
  .master-card { align-items: center; }
}
@media (max-width: 767px) {
  .nav-desktop { display: none; }
}