/* ============================================================
   四川中诚毅达工程项目管理有限公司 - 官网样式
   设计基调：Apple 官网风格（极简 / 大留白 / 无衬线 / 细分割线）
   ============================================================ */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  --c-text: #1d1d1f;
  --c-text-2: #6e6e73;
  --c-text-3: #86868b;
  --c-bg: #ffffff;
  --c-bg-alt: #f5f5f7;
  --c-bg-dark: #000000;
  --c-line: #d2d2d7;
  --c-line-light: #e8e8ed;
  --c-blue: #0071e3;
  --c-blue-hover: #0077ed;
  --c-gold: #b8935f;

  --nav-h: 48px;
  --radius: 18px;
  --radius-lg: 28px;
  --maxw: 1200px;
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--c-text);
  background: var(--c-bg);
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--c-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

/* ---------- 排版 ---------- */
.h-display { font-size: clamp(40px, 6.2vw, 80px); font-weight: 600; letter-spacing: -0.03em; line-height: 1.07; }
.h1 { font-size: clamp(32px, 4.4vw, 56px); font-weight: 600; letter-spacing: -0.025em; line-height: 1.1; }
.h2 { font-size: clamp(26px, 3.2vw, 40px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; }
.h3 { font-size: clamp(20px, 2.2vw, 28px); font-weight: 600; letter-spacing: -0.015em; line-height: 1.25; }
.h4 { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.lead { font-size: clamp(18px, 2vw, 21px); line-height: 1.5; color: var(--c-text-2); font-weight: 400; }
.body { font-size: 17px; line-height: 1.65; color: var(--c-text-2); }
.small { font-size: 14px; color: var(--c-text-3); line-height: 1.6; }
.eyebrow { font-size: 14px; font-weight: 600; letter-spacing: .06em; color: var(--c-blue); text-transform: uppercase; }
.center { text-align: center; }

.gap-s { height: 16px; } .gap-m { height: 40px; } .gap-l { height: 80px; } .gap-xl { height: 120px; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(255, 255, 255, .72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, .08);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; height: 100%;
  padding: 0 24px; display: flex; align-items: center; gap: 32px;
}
.nav-logo { display: flex; align-items: center; gap: 9px; font-size: 15px; font-weight: 600; color: var(--c-text); letter-spacing: .01em; white-space: nowrap; }
.nav-logo:hover { text-decoration: none; }
.nav-logo img { height: 34px; width: auto; max-width: 180px; object-fit: contain; display: block; }
.nav-logo .mark {
  width: 22px; height: 22px; border-radius: 6px; flex: none;
  background: linear-gradient(135deg, #1d4ed8, #0ea5e9);
  display: grid; place-items: center; color: #fff; font-size: 11px; font-weight: 700;
}
@media (max-width: 720px) { .nav-logo img { height: 30px; } }
.nav-links { display: flex; gap: 28px; margin-left: auto; align-items: center; }
.nav-links a { font-size: 13px; color: var(--c-text); opacity: .88; white-space: nowrap; transition: opacity .2s; }
.nav-links a:hover { opacity: 1; text-decoration: none; }
.nav-links a.active { font-weight: 600; opacity: 1; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 0; padding: 6px; cursor: pointer; }
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--c-text); margin: 4px 0; transition: .25s var(--ease); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 26px; border-radius: 980px; font-size: 17px; font-weight: 400;
  background: var(--c-blue); color: #fff; border: 0; cursor: pointer;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.btn:hover { background: var(--c-blue-hover); text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-ghost { background: transparent; color: var(--c-blue); border: 1px solid var(--c-blue); }
.btn-ghost:hover { background: rgba(0, 113, 227, .06); }
.btn-dark { background: var(--c-text); }
.btn-dark:hover { background: #333; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.link-arrow { color: var(--c-blue); font-size: 17px; }
.link-arrow::after { content: " ›"; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 88vh; display: grid; place-items: center;
  margin-top: var(--nav-h); overflow: hidden; background: #000; text-align: center;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .58; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.35) 45%, rgba(0,0,0,.7) 100%); }
.hero-inner { position: relative; z-index: 2; padding: 90px 24px; max-width: 900px; }
.hero .h-display { color: #fff; }
.hero .lead { color: rgba(255, 255, 255, .82); margin-top: 22px; }
.hero-cta { margin-top: 34px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-cta .btn-dark { background: #fff; color: #1d1d1f; }
.hero-cta .btn-dark:hover { background: rgba(255,255,255,.88); }
.hero-cta .btn-ghost { color: #fff; border-color: rgba(255,255,255,.6); }
.hero-cta .btn-ghost:hover { background: rgba(255,255,255,.12); }

.subhero { padding: 22px 0; background: var(--c-bg-alt); text-align: center; border-bottom: 1px solid var(--c-line-light); }
.subhero .small { color: var(--c-text-2); }

/* ---------- 区块 ---------- */
.section { padding: 110px 0; }
.section-alt { background: var(--c-bg-alt); }
.section-dark { background: #000; color: #f5f5f7; }
.section-dark .lead, .section-dark .body { color: rgba(245,245,247,.7); }
.section-dark .h1, .section-dark .h2, .section-dark .h3 { color: #f5f5f7; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-head .lead { margin-top: 16px; }
.sec-head.left { text-align: left; margin-left: 0; }

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

.card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--c-line-light);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,.09); }
.card-img { aspect-ratio: 16 / 10; overflow: hidden; background: var(--c-bg-alt); }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.card:hover .card-img img { transform: scale(1.04); }
.card-body { padding: 28px; }
.card-body .h3 { margin-bottom: 10px; }
.card-body .body { margin-bottom: 16px; }

.card-plain { background: var(--c-bg-alt); border-radius: var(--radius-lg); padding: 36px; }
.card-plain .h3 { margin-bottom: 12px; }
.num {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  background: var(--c-blue); color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px;
}

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { text-align: center; padding: 20px 12px; }
.stat .v { font-size: clamp(34px, 4vw, 52px); font-weight: 600; letter-spacing: -0.03em; line-height: 1; }
.stat .v small { font-size: .45em; font-weight: 500; margin-left: 2px; }
.stat .k { margin-top: 10px; font-size: 14px; color: var(--c-text-2); }
.section-dark .stat .k { color: rgba(245,245,247,.6); }

/* ---------- 公告列表 ---------- */
.ann-tabs { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-bottom: 36px; }
.tab {
  padding: 8px 22px; border-radius: 980px; border: 1px solid var(--c-line);
  background: #fff; font-size: 15px; cursor: pointer; color: var(--c-text); transition: .2s var(--ease);
}
.tab:hover { border-color: var(--c-text-3); }
.tab.active { background: var(--c-text); color: #fff; border-color: var(--c-text); }

.ann-search { display: flex; gap: 10px; max-width: 520px; margin: 0 auto 40px; }
.ann-search input {
  flex: 1; padding: 12px 20px; border-radius: 980px; border: 1px solid var(--c-line);
  background: #fff; outline: none; font-size: 15px;
}
.ann-search input:focus { border-color: var(--c-blue); box-shadow: 0 0 0 4px rgba(0,113,227,.12); }

.ann-list { border-top: 1px solid var(--c-line-light); }
.ann-item {
  display: flex; align-items: center; gap: 20px; padding: 24px 8px;
  border-bottom: 1px solid var(--c-line-light); transition: background .2s;
}
.ann-item:hover { background: #fafafa; text-decoration: none; }
.ann-date { flex: none; width: 92px; text-align: center; }
.ann-date .d { font-size: 24px; font-weight: 600; line-height: 1; letter-spacing: -0.02em; }
.ann-date .m { font-size: 12px; color: var(--c-text-3); margin-top: 4px; }
.ann-main { flex: 1; min-width: 0; }
.ann-title { font-size: 17px; font-weight: 500; color: var(--c-text); line-height: 1.45; }
.ann-item:hover .ann-title { color: var(--c-blue); }
.ann-meta { margin-top: 7px; display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--c-text-3); }
.tag { display: inline-block; padding: 2px 10px; border-radius: 6px; font-size: 12px; font-weight: 500; line-height: 1.7; }
.tag-zb { background: rgba(0,113,227,.1); color: #0071e3; }
.tag-jg { background: rgba(52,199,89,.14); color: #248a3d; }
.tag-bg { background: rgba(255,149,0,.16); color: #b25000; }
.tag-qt { background: #f0f0f2; color: #6e6e73; }
.tag-open { background: rgba(0,113,227,.1); color: #0071e3; }
.tag-close { background: #f0f0f2; color: #86868b; }
.ann-arrow { flex: none; color: var(--c-text-3); font-size: 20px; }
.ann-empty { padding: 70px 0; text-align: center; color: var(--c-text-3); }

/* 公告详情 */
.article { padding: calc(var(--nav-h) + 72px) 0 100px; }
.article-head { text-align: center; border-bottom: 1px solid var(--c-line-light); padding-bottom: 32px; margin-bottom: 40px; }
.article-head .h2 { margin-bottom: 18px; }
.article-meta { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; font-size: 14px; color: var(--c-text-3); }
.article-body { font-size: 17px; line-height: 1.85; color: #2c2c2e; }
.article-body p { margin-bottom: 18px; }
.article-body h4 { margin: 30px 0 12px; font-size: 19px; }
.article-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px; }
.article-body th, .article-body td { border: 1px solid var(--c-line); padding: 11px 14px; text-align: left; }
.article-body th { background: var(--c-bg-alt); font-weight: 600; }
.article-body ul { margin: 0 0 18px 22px; }
.article-body li { margin-bottom: 8px; }
.article-files { margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--c-line-light); }
.file-row { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--c-line-light); }
.file-row .nm { flex: 1; font-size: 16px; }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 20px; }
.form-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 14px; font-weight: 500; color: var(--c-text); }
.field label .req { color: #d70015; margin-left: 2px; }
.field input, .field select, .field textarea {
  padding: 14px 16px; border-radius: 12px; border: 1px solid var(--c-line);
  background: #fff; outline: none; font-size: 16px; transition: .2s var(--ease); width: 100%;
}
.field textarea { min-height: 120px; resize: vertical; line-height: 1.6; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--c-blue); box-shadow: 0 0 0 4px rgba(0,113,227,.12);
}
.field .hint { font-size: 13px; color: var(--c-text-3); }
.field input[type="file"] { padding: 10px; font-size: 14px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--c-text-2); }
.check input { width: 17px; height: 17px; margin-top: 3px; flex: none; accent-color: var(--c-blue); }

.form-section-title {
  font-size: 21px; font-weight: 600; padding-bottom: 14px; margin-top: 14px;
  border-bottom: 1px solid var(--c-line-light); grid-column: 1 / -1;
}
.form-section-title span { font-size: 13px; font-weight: 400; color: var(--c-text-3); margin-left: 10px; }

/* 双列表单（供应商报名） */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 24px; }
.form-grid .span-2 { grid-column: 1 / -1; }
@media (max-width: 720px) { .form-grid { grid-template-columns: 1fr; } }

/* 报名成功卡片 */
.success-card { text-align: center; padding: 56px 36px; border-radius: var(--radius-lg); background: var(--c-bg-alt); }
.success-card .ic { width: 64px; height: 64px; border-radius: 50%; background: #34c759; color: #fff; display: grid; place-items: center; font-size: 32px; margin: 0 auto 24px; }
.success-card .no { font-size: 22px; font-weight: 600; letter-spacing: .02em; margin: 14px 0 6px; }

/* 报名截止倒计时 */
.cd-box {
  margin-top: 4px; padding: 18px 22px; border-radius: var(--radius);
  background: linear-gradient(135deg, #f0f6ff, #f8fbff);
  border: 1px solid #d9e7fb;
}
.cd-box .cd-t { font-size: 13px; color: #6e6e73; }
.cd-box .cd-d { font-size: 19px; font-weight: 600; margin-top: 4px; letter-spacing: .01em; }
.cd-box .cd-r { margin-top: 8px; font-size: 15px; font-weight: 600; color: #0071e3; }
.cd-box .cd-r.over { color: #d70015; }
.cd-box .cd-w { margin-top: 10px; font-size: 13px; color: #d70015; }

/* 报名进度（已提交 → 审核中 → 可下载） */
.flow { display: flex; align-items: flex-start; justify-content: center; gap: 8px; margin: 28px 0 6px; flex-wrap: wrap; }
.flow-i { display: flex; flex-direction: column; align-items: center; gap: 8px; width: 98px; }
.flow-i .dot { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-size: 15px; font-weight: 600; background: #e5e5ea; color: #86868b; }
.flow-i .t { font-size: 13px; color: #86868b; text-align: center; line-height: 1.4; }
.flow-i.done .dot { background: #34c759; color: #fff; }
.flow-i.done .t { color: #1d1d1f; }
.flow-i.cur .dot { background: #ff9500; color: #fff; }
.flow-i.cur .t { color: #1d1d1f; font-weight: 600; }
.flow-ln { width: 46px; height: 2px; background: #d2d2d7; margin-top: 16px; }
@media (max-width: 520px) { .flow-ln { width: 22px; } .flow-i { width: 80px; } }

/* 会员中心 · 报名记录里的下载条 */
.dl-bar { margin-top: 14px; padding: 14px 16px; border-radius: 12px; background: #f0f9f4; border: 1px solid #cdeed9; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.dl-bar .nm { flex: 1; font-size: 15px; min-width: 160px; }

/* 支付块 */
.pay-box {
  display: grid; grid-template-columns: 200px 1fr; gap: 32px; align-items: center;
  background: var(--c-bg-alt); border-radius: var(--radius-lg); padding: 32px; margin-top: 8px;
}
.pay-qr {
  width: 200px; height: 200px; border-radius: 16px; background: #fff; border: 1px solid var(--c-line-light);
  display: grid; place-items: center; overflow: hidden; padding: 10px;
}
.pay-qr img { width: 100%; height: 100%; object-fit: contain; }
.qr-ph { text-align: center; font-size: 13px; color: var(--c-text-3); line-height: 1.8; }
.qr-ph span { font-size: 11px; color: var(--c-text-3); }
.pay-info .amount { font-size: 34px; font-weight: 600; letter-spacing: -0.02em; }
.pay-info .amount small { font-size: 16px; font-weight: 400; color: var(--c-text-2); }
.pay-info ol { margin: 16px 0 0 20px; font-size: 15px; color: var(--c-text-2); line-height: 1.8; }
.pay-note { margin-top: 14px; font-size: 13px; color: #b25000; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.step { text-align: center; position: relative; }
.step .dot {
  width: 54px; height: 54px; border-radius: 50%; background: var(--c-bg-alt);
  border: 1px solid var(--c-line); display: grid; place-items: center; margin: 0 auto 16px;
  font-size: 19px; font-weight: 600; color: var(--c-blue);
}
.step .t { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.step .d { font-size: 14px; color: var(--c-text-2); line-height: 1.6; }

/* ---------- 业务系统入口 ---------- */
.sys-card { display: flex; gap: 20px; align-items: flex-start; padding: 30px 32px; }
.sys-card .sys-ic {
  width: 52px; height: 52px; flex: none; border-radius: 14px;
  background: linear-gradient(135deg, #0071e3, #34aadc); color: #fff;
  display: grid; place-items: center; font-size: 22px;
}
.sys-card:hover { border-color: var(--c-blue); }
@media (max-width: 520px) { .sys-card { flex-direction: column; gap: 14px; } }

/* ---------- 系统页（在线评标 / 专家抽取） ---------- */
.sys-wrap { min-height: 60vh; display: grid; place-items: center; padding: calc(var(--nav-h) + 80px) 24px 90px; }
.sys-box {
  width: 100%; max-width: 460px; background: #fff; border: 1px solid var(--c-line-light);
  border-radius: 20px; padding: 40px 38px; box-shadow: 0 1px 3px rgba(0,0,0,.04), 0 8px 32px rgba(0,0,0,.05);
}
.sys-box h1 { font-size: 24px; font-weight: 600; margin: 0 0 8px; }
.sys-box .sub { font-size: 14px; color: #6e6e73; margin-bottom: 26px; line-height: 1.6; }
.sys-box label { display: block; font-size: 13px; color: #6e6e73; margin-bottom: 6px; }
.sys-box input {
  width: 100%; padding: 12px 14px; font-size: 15px; border: 1px solid #d2d2d7;
  border-radius: 10px; margin-bottom: 16px; font-family: inherit;
}
.sys-box input:focus { outline: 0; border-color: #0071e3; box-shadow: 0 0 0 4px rgba(0,113,227,.12); }
.sys-note { margin-top: 18px; font-size: 12px; color: #86868b; line-height: 1.7; }
.sys-err { color: #d70015; font-size: 13px; margin-top: 10px; line-height: 1.6; display: none; }

/* 系统升级改造中 */
.upgrade { text-align: center; padding: 40px 20px; }
.upgrade .ic { width: 76px; height: 76px; border-radius: 50%; background: var(--c-bg-alt); display: grid; place-items: center; font-size: 34px; margin: 0 auto 24px; }
.upgrade .prog { max-width: 420px; margin: 26px auto 0; height: 6px; border-radius: 3px; background: #e5e5ea; overflow: hidden; }
.upgrade .prog i { display: block; height: 100%; width: 62%; background: linear-gradient(90deg, #0071e3, #34aadc); }

/* ---------- 资质 / 荣誉 ---------- */
.qual-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
.qual {
  border: 1px solid var(--c-line-light); border-radius: var(--radius); padding: 26px;
  background: #fff; transition: .3s var(--ease);
}
.qual:hover { border-color: var(--c-blue); }
.qual .ic { font-size: 26px; margin-bottom: 14px; }
.qual .t { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.qual .d { font-size: 14px; color: var(--c-text-2); line-height: 1.6; }

/* ---------- 关于页 ---------- */
.about-hero { margin-top: var(--nav-h); padding: 96px 0 40px; background: var(--c-bg-alt); text-align: center; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value { padding: 44px 32px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--c-line-light); text-align: center; }
.value .zh { font-size: 26px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 14px; }
.value .en { font-size: 12px; letter-spacing: .1em; color: var(--c-text-3); text-transform: uppercase; margin-bottom: 16px; }
.value .body { font-size: 15px; }

.timeline { border-left: 2px solid var(--c-line-light); padding-left: 34px; }
.tl-item { position: relative; padding-bottom: 40px; }
.tl-item::before {
  content: ""; position: absolute; left: -43px; top: 6px; width: 14px; height: 14px;
  border-radius: 50%; background: #fff; border: 3px solid var(--c-blue);
}
.tl-item .yr { font-size: 15px; font-weight: 600; color: var(--c-blue); margin-bottom: 6px; }
.tl-item .h4 { margin-bottom: 6px; }

/* 服务详情 */
.svc-block { padding: 90px 0; border-bottom: 1px solid var(--c-line-light); }
.svc-block:nth-child(even) { background: var(--c-bg-alt); }
.svc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.svc-grid.reverse .svc-media { order: 2; }
.svc-media { border-radius: var(--radius-lg); overflow: hidden; }
.svc-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.svc-list { list-style: none; margin-top: 24px; }
.svc-list li { padding: 12px 0 12px 26px; border-bottom: 1px solid var(--c-line-light); position: relative; font-size: 16px; color: var(--c-text-2); }
.svc-list li::before { content: ""; position: absolute; left: 4px; top: 20px; width: 6px; height: 6px; border-radius: 50%; background: var(--c-blue); }

/* 联系我们 */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { padding: 34px; border-radius: var(--radius-lg); background: var(--c-bg-alt); text-align: center; }
.contact-card .k { font-size: 14px; color: var(--c-text-3); margin-bottom: 10px; }
.contact-card .v { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; }
.contact-card .s { font-size: 14px; color: var(--c-text-2); margin-top: 8px; }

/* 登录 / 会员中心 */
.auth-wrap { min-height: 82vh; display: grid; place-items: center; padding: calc(var(--nav-h) + 60px) 24px 80px; }
.auth-card { width: 100%; max-width: 420px; background: #fff; border: 1px solid var(--c-line-light); border-radius: var(--radius-lg); padding: 44px 36px; }
.auth-card .h2 { font-size: 30px; text-align: center; margin-bottom: 10px; }
.auth-card .lead { text-align: center; font-size: 16px; margin-bottom: 30px; }
.code-row { display: flex; gap: 10px; }
.code-row input { flex: 1; }
.code-row button { flex: none; padding: 0 18px; border-radius: 12px; border: 1px solid var(--c-blue); background: #fff; color: var(--c-blue); cursor: pointer; font-size: 14px; }
.code-row button[disabled] { color: var(--c-text-3); border-color: var(--c-line); cursor: not-allowed; }

.member-tabs { display: flex; gap: 8px; border-bottom: 1px solid var(--c-line-light); margin-bottom: 28px; overflow-x: auto; }
.member-tabs button { background: none; border: 0; padding: 12px 18px; font-size: 16px; cursor: pointer; color: var(--c-text-3); border-bottom: 2px solid transparent; white-space: nowrap; }
.member-tabs button.active { color: var(--c-text); font-weight: 600; border-bottom-color: var(--c-text); }
.rec { border: 1px solid var(--c-line-light); border-radius: var(--radius); padding: 22px 26px; margin-bottom: 14px; background: #fff; }
.rec-top { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.rec .t { font-size: 17px; font-weight: 600; }
.rec .m { font-size: 13px; color: var(--c-text-3); margin-top: 6px; display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.footer { background: var(--c-bg-alt); padding: 60px 0 32px; font-size: 13px; color: var(--c-text-3); border-top: 1px solid var(--c-line-light); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 36px; border-bottom: 1px solid var(--c-line-light); }
.footer h5 { font-size: 14px; font-weight: 600; color: var(--c-text); margin-bottom: 14px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 9px; }
.footer a { color: var(--c-text-3); font-size: 13px; }
.footer a:hover { color: var(--c-text); }
.footer-bottom { padding-top: 22px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer .brand { font-size: 17px; font-weight: 600; color: var(--c-text); margin-bottom: 12px; }

/* ---------- 滚动渐显 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 提示条 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px); z-index: 2000;
  background: rgba(29,29,31,.94); color: #fff; padding: 13px 26px; border-radius: 980px;
  font-size: 15px; opacity: 0; pointer-events: none; transition: .3s var(--ease); backdrop-filter: blur(10px);
  max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 演示模式角标 */
.demo-badge {
  position: fixed; right: 16px; bottom: 16px; z-index: 1500;
  background: rgba(255,159,10,.94); color: #fff; font-size: 12px; padding: 7px 14px;
  border-radius: 980px; box-shadow: 0 4px 16px rgba(0,0,0,.14);
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .g-3, .g-4, .values, .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .svc-grid { grid-template-columns: 1fr; gap: 32px; }
  .svc-grid.reverse .svc-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .section { padding: 76px 0; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; align-items: flex-start;
    gap: 0; background: rgba(255,255,255,.96); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--c-line-light); padding: 0 24px;
    max-height: 0; overflow: hidden; transition: max-height .35s var(--ease);
  }
  .nav-links.open { max-height: 460px; padding: 8px 24px 20px; }
  .nav-links a { padding: 14px 0; font-size: 16px; width: 100%; border-bottom: 1px solid var(--c-line-light); }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-toggle { display: block; }
  .g-2, .g-3, .g-4, .values, .contact-grid, .stats, .steps, .form-2 { grid-template-columns: 1fr; }
  .pay-box { grid-template-columns: 1fr; text-align: center; }
  .pay-qr { margin: 0 auto; }
  .pay-info ol { text-align: left; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 76vh; }
  .ann-item { flex-wrap: wrap; gap: 10px; }
  .ann-date { width: auto; display: flex; align-items: baseline; gap: 6px; }
  .ann-date .d { font-size: 17px; }
  .ann-arrow { display: none; }
}

/* ============================================================
   后台「网站内容」编辑器
   ============================================================ */
.cms-note {
  font-size: 13px; color: #6e6e73; line-height: 1.7;
  background: #f5f5f7; border-radius: 8px; padding: 10px 14px;
  margin: 6px 0 14px;
}
.cms-note strong { color: #1d1d1f; }
.cms-tip { font-size: 13px; color: #86868b; align-self: center; margin-left: auto; }
.cms-tip:empty { display: none; }
.cms-box input, .cms-box textarea, .cms-box select {
  width: 100%; box-sizing: border-box; padding: 9px 12px;
  font-size: 14px; font-family: inherit;
  border: 1px solid #d2d2d7; border-radius: 8px;
}
.cms-box textarea { min-height: 72px; line-height: 1.6; resize: vertical; }
.cms-box input:focus, .cms-box textarea:focus { outline: 0; border-color: #0071e3; }
.cms-list { border: 1px solid #e8e8ed; border-radius: 10px; overflow: hidden; }
.cms-row {
  display: flex; gap: 8px; padding: 8px; align-items: flex-start;
  border-bottom: 1px solid #f0f0f2; background: #fff;
}
.cms-row:last-child { border-bottom: none; }
.cms-cell {
  flex: 1; min-width: 70px; box-sizing: border-box; padding: 7px 10px;
  font-size: 13px; font-family: inherit;
  border: 1px solid #d2d2d7; border-radius: 6px;
}
.cms-cell:focus { outline: 0; border-color: #0071e3; }
.cms-cell-ta { min-height: 48px; line-height: 1.5; resize: vertical; }
.cms-ops { display: flex; gap: 4px; flex: none; }
.cms-fgrp { border: 1px solid #e8e8ed; border-radius: 10px; padding: 12px; margin-bottom: 14px; background: #fff; }
.cms-fgrp-head { display: flex; gap: 8px; margin-bottom: 10px; align-items: center; }
.cms-fgrp-head .cms-box { flex: 1; }
.cms-scroll { overflow-x: auto; }
.cms-scroll .adm-table { min-width: 900px; }
.cms-scroll input, .cms-scroll select {
  width: 100%; box-sizing: border-box; padding: 6px 8px;
  font-size: 13px; font-family: inherit;
  border: 1px solid #d2d2d7; border-radius: 6px;
}
.cms-scroll input:focus, .cms-scroll select:focus { outline: 0; border-color: #0071e3; }
#pane-content .f-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
#pane-content .f-item.full { grid-column: 1 / -1; }
#pane-content .f-item label {
  display: block; font-size: 13px; color: #6e6e73; margin-bottom: 6px; font-weight: 500;
}
@media (max-width: 860px) {
  #pane-content .f-grid { grid-template-columns: 1fr; }
  .cms-row { flex-wrap: wrap; }
}


/* ============================================================
   项目业绩页
   ============================================================ */
.case-note { font-size: 15px; color: var(--c-text-2); line-height: 1.7; text-align: center; max-width: 760px; margin: 0 auto 40px; }
.case-stat { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; background: var(--c-bg-alt); border-radius: var(--radius); padding: 30px 24px; margin-bottom: 44px; }
.case-stat .cs-item { text-align: center; }
.cs-v { font-size: 32px; font-weight: 600; letter-spacing: -.02em; color: var(--c-text); }
.cs-k { font-size: 14px; color: var(--c-text-3); margin-top: 4px; }

.filter-bar { border-top: 1px solid var(--c-line-light); margin-bottom: 36px; }
.filter-group { display: flex; gap: 16px; align-items: flex-start; padding: 16px 0; border-bottom: 1px solid var(--c-line-light); }
.filter-label { width: 76px; flex: none; font-size: 14px; color: var(--c-text-3); padding-top: 5px; }
.filter-chips { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
.filter-chip { border: 1px solid var(--c-line); background: #fff; color: var(--c-text-2); border-radius: 980px; padding: 5px 14px; font-size: 14px; cursor: pointer; transition: all .2s var(--ease); }
.filter-chip:hover { border-color: var(--c-blue); color: var(--c-blue); }
.filter-chip.on { background: var(--c-blue); border-color: var(--c-blue); color: #fff; }
.filter-input { flex: 1; max-width: 340px; padding: 7px 14px; border: 1px solid var(--c-line); border-radius: 980px; font-size: 14px; outline: none; }
.filter-input:focus { border-color: var(--c-blue); }

.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card { background: #fff; border: 1px solid var(--c-line-light); border-radius: var(--radius); padding: 28px 26px; transition: all .25s var(--ease); }
.case-card:hover { border-color: var(--c-line); transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,.06); }
.case-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.case-client { font-size: 19px; font-weight: 600; letter-spacing: -.01em; }
.case-year { font-size: 14px; color: var(--c-text-3); flex: none; }
.case-title { font-size: 15px; color: var(--c-text-2); margin-top: 8px; line-height: 1.6; }
.case-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.case-desc { font-size: 14px; color: var(--c-text-2); line-height: 1.7; margin-top: 12px; }
.case-scale { font-size: 14px; color: var(--c-text-3); margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--c-line-light); }
.case-scale span { color: var(--c-text); font-weight: 500; }
.case-empty { text-align: center; padding: 60px 0; color: var(--c-text-3); font-size: 15px; }

.demo-tip { background: rgba(255,159,10,.1); border: 1px solid rgba(255,159,10,.28); color: #8a5300; border-radius: 12px; padding: 14px 18px; font-size: 14px; line-height: 1.7; margin-bottom: 28px; }
.demo-tip strong { color: #6d4000; }

/* ---------- 资质证书墙 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 20px; }
.cert { background: #fff; border: 1px solid var(--c-line-light); border-radius: var(--radius); overflow: hidden; cursor: zoom-in; transition: all .25s var(--ease); }
.cert:hover { border-color: var(--c-blue); transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,.07); }
.cert-img { height: 168px; background: var(--c-bg-alt); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.cert-img img { width: 100%; height: 100%; object-fit: contain; padding: 12px; }
.cert-img.noimg::after { content: "证书待上传"; font-size: 13px; color: var(--c-text-3); }
.cert-cap { padding: 16px 18px 20px; }
.cert-cap .t { font-size: 15px; font-weight: 600; }
.cert-cap .d { font-size: 13px; color: var(--c-text-2); line-height: 1.6; margin-top: 6px; }

/* ---------- 图片灯箱 ---------- */
.lightbox { position: fixed; inset: 0; z-index: 2000; display: none; background: rgba(0,0,0,.88); padding: 40px 24px; align-items: center; justify-content: center; }
.lightbox.on { display: flex; }
.lb-inner { max-width: 900px; width: 100%; text-align: center; }
.lb-inner img { max-width: 100%; max-height: 78vh; margin: 0 auto; border-radius: 12px; background: #fff; }
.lb-cap { color: rgba(255,255,255,.9); font-size: 15px; margin-top: 18px; }

@media (max-width: 980px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .case-stat { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}
@media (max-width: 720px) {
  .case-grid, .case-stat { grid-template-columns: 1fr; }
  .filter-group { flex-direction: column; gap: 8px; }
  .filter-label { width: auto; padding-top: 0; }
  .filter-input { max-width: 100%; }
}