/* ============================================================
   成都叁壹玖商贸有限公司官网 —— 高级大气风格 v2
   深墨绿 × 精金 | 大字号标题 | 深浅色块交错 | 奖墙式资质
   ============================================================ */
:root {
  --green: #0f4530;
  --green-2: #145c3f;
  --green-deep: #08281b;
  --green-ink: #0a3524;
  --green-light: #eaf2ec;
  --gold: #c3a267;
  --gold-deep: #a9894e;
  --gold-light: #e8d9b8;
  --ink: #141f19;
  --gray: #66746c;
  --line: #e3e8e4;
  --bg: #f6f8f6;
  --white: #ffffff;
  --radius: 4px;
  --shadow: 0 18px 50px rgba(8, 40, 27, .12);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--ink); background: var(--white); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

/* ---------- 顶部信息条 ---------- */
.topbar { background: var(--green-deep); color: rgba(255,255,255,.82); font-size: 12.5px; letter-spacing: 1px; position: relative; z-index: 120; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar span i { font-style: normal; color: var(--gold); margin-right: 6px; }
.topbar .hotline b { color: var(--gold); font-weight: 600; letter-spacing: 2px; }

/* ---------- 主导航 ---------- */
.header { position: sticky; top: 0; z-index: 110; background: rgba(255,255,255,.96); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); box-shadow: 0 1px 0 rgba(195,162,103,.35); }
.header.scrolled { box-shadow: 0 10px 34px rgba(8,40,27,.1); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 88px; }
.logo { display: flex; align-items: center; gap: 14px; }
.logo-mark { width: 52px; height: 52px; background: var(--green); color: var(--gold-light); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px; letter-spacing: 1px; position: relative; }
.logo-mark::after { content: ""; position: absolute; inset: 3px; border: 1px solid rgba(195,162,103,.55); }
.logo-text b { font-size: 21px; letter-spacing: 4px; display: block; line-height: 1.25; font-weight: 800; }
.logo-text span { font-size: 10.5px; color: var(--gray); letter-spacing: 1.6px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 10px 22px; font-size: 15.5px; letter-spacing: 2px; color: var(--ink); position: relative; transition: color .25s; }
.nav a::after { content: ""; position: absolute; left: 22px; right: 22px; bottom: 2px; height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: center; transition: transform .3s; }
.nav a:hover { color: var(--green); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.active { color: var(--green); font-weight: 700; }
.nav a.active::after { transform: scaleX(1); }
.nav .nav-login { border: 1px solid var(--green); padding: 9px 26px; margin-left: 14px; color: var(--green); letter-spacing: 2px; }
.nav .nav-login::after { display: none; }
.nav .nav-login:hover, .nav .nav-login.active { background: var(--green); color: #fff; }
.menu-btn { display: none; background: none; border: 0; font-size: 28px; cursor: pointer; color: var(--green); }

/* ---------- Hero（全屏气势） ---------- */
.hero { position: relative; min-height: calc(100vh - 126px); display: flex; flex-direction: column; overflow: hidden; background: var(--green-deep); }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(102deg, rgba(8,40,27,.94) 0%, rgba(8,40,27,.72) 42%, rgba(8,40,27,.25) 100%); z-index: 1; }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(195,162,103,.7), transparent); z-index: 2; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(.92); }
.hero .container { position: relative; z-index: 3; flex: 1; display: flex; flex-direction: column; justify-content: center; padding-top: 64px; padding-bottom: 64px; }
.hero-kicker { display: flex; align-items: center; gap: 16px; color: var(--gold); font-size: 14px; letter-spacing: 8px; margin-bottom: 30px; }
.hero-kicker::before { content: ""; width: 56px; height: 1px; background: var(--gold); }
.hero h1 { color: #fff; font-size: 62px; line-height: 1.28; letter-spacing: 4px; font-weight: 800; max-width: 900px; }
.hero h1 em { color: var(--gold); font-style: normal; }
.hero p { color: rgba(255,255,255,.82); font-size: 17px; max-width: 600px; margin: 28px 0 46px; letter-spacing: 1px; }
.hero-btns { display: flex; gap: 18px; flex-wrap: wrap; }

/* 按钮：矩形微圆角 + 字距（高级感） */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 44px; border-radius: var(--radius); font-size: 15px; letter-spacing: 4px; cursor: pointer; border: 0; transition: all .3s; font-family: var(--font); position: relative; overflow: hidden; }
.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: var(--gold-deep); transform: translateY(-2px); box-shadow: 0 14px 34px rgba(195,162,103,.4); }
.btn-ghost { border: 1px solid rgba(255,255,255,.5); color: #fff; background: transparent; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-dark { background: var(--green); color: #fff; }
.btn-dark:hover { background: var(--green-deep); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(8,40,27,.3); }

/* Hero 底部数据条（气势）—— 流式布局，任何屏幕不遮挡内容 */
.hero-strip { position: relative; z-index: 4; background: rgba(8,40,27,.55); backdrop-filter: blur(8px); border-top: 1px solid rgba(195,162,103,.35); }
.hero-strip-inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.hstrip-item { padding: 26px 12px; text-align: center; border-right: 1px solid rgba(195,162,103,.25); }
.hstrip-item:last-child { border-right: 0; }
.hstrip-item .num { color: var(--gold); font-family: var(--serif); font-size: 36px; font-weight: 700; line-height: 1.1; }
.hstrip-item .num small { font-size: 15px; font-family: var(--font); margin-left: 3px; letter-spacing: 1px; }
.hstrip-item .label { color: rgba(255,255,255,.82); font-size: 13.5px; letter-spacing: 3px; margin-top: 8px; }

/* ---------- 区块通用 ---------- */
.section { padding: 118px 0; }
.section.bg { background: var(--bg); }
.section.dark { background: var(--green-deep); color: #fff; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 68px; }
.section-head .en { color: var(--gold); font-size: 12.5px; letter-spacing: 8px; text-transform: uppercase; display: inline-flex; align-items: center; gap: 18px; margin-bottom: 16px; }
.section-head .en::before, .section-head .en::after { content: ""; width: 44px; height: 1px; background: currentColor; opacity: .6; }
.section-head h2 { font-size: 42px; letter-spacing: 5px; font-weight: 800; position: relative; display: inline-block; padding-bottom: 22px; }
.section-head h2::after { content: ""; position: absolute; left: 50%; transform: translateX(-50%); bottom: 0; width: 64px; height: 3px; background: var(--gold); }
.section-head p { color: var(--gray); margin-top: 20px; font-size: 15px; letter-spacing: 1px; }
.section.dark .section-head p { color: rgba(255,255,255,.72); }
.section-head.left { text-align: left; margin: 0 0 34px; max-width: none; }
.section-head.left .en { justify-content: flex-start; }
.section-head.left .en::before { display: none; }
.section-head.left h2 { padding-bottom: 18px; }
.section-head.left h2::after { left: 0; transform: none; }

/* ---------- 规模数字带（深色大数字） ---------- */
.scale-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(195,162,103,.3); border: 1px solid rgba(195,162,103,.3); }
.scale-item { background: var(--green-deep); padding: 56px 20px; text-align: center; transition: background .35s; }
.scale-item:hover { background: #0d3a27; }
.scale-item .num { font-family: var(--serif); font-size: 58px; font-weight: 700; color: var(--gold); line-height: 1; }
.scale-item .num small { font-size: 19px; font-family: var(--font); margin-left: 4px; }
.scale-item .label { color: rgba(255,255,255,.85); margin-top: 16px; font-size: 14.5px; letter-spacing: 4px; }

/* ---------- 服务卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); }
.card { background: #fff; padding: 46px 38px; transition: all .35s; position: relative; overflow: hidden; }
.card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .4s; }
.card:hover { background: var(--green-light); }
.card:hover::before { transform: scaleX(1); }
.card .icon { width: 64px; height: 64px; border: 1px solid var(--line); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 30px; margin-bottom: 24px; transition: all .35s; background: #fff; }
.card:hover .icon { border-color: var(--gold); transform: translateY(-4px); }
.card h3 { font-size: 21px; letter-spacing: 3px; margin-bottom: 14px; font-weight: 700; }
.card p { color: var(--gray); font-size: 14.5px; letter-spacing: .5px; }

/* ---------- 优势（图文） ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: center; }
.split-img { position: relative; }
.split-img img { width: 100%; height: 480px; object-fit: cover; transition: transform .8s; }
.split-img::after { content: ""; position: absolute; top: 18px; left: 18px; right: -18px; bottom: -18px; border: 1px solid var(--gold); z-index: -1; }
.split-img:hover img { transform: scale(1.045); }
.adv-item { display: flex; gap: 22px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.adv-item:last-child { border-bottom: 0; }
.adv-item .idx { flex: none; width: 52px; height: 52px; border: 1px solid var(--gold); color: var(--gold); font-family: var(--serif); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 20px; background: #fff; }
.adv-item h4 { font-size: 18px; letter-spacing: 2px; margin-bottom: 8px; font-weight: 700; }
.adv-item p { color: var(--gray); font-size: 14.5px; }

/* ---------- 奖墙式资质 ---------- */
.cert-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); }
.cert { background: #fff; padding: 34px 18px 30px; text-align: center; font-size: 14px; letter-spacing: 1px; position: relative; transition: all .3s; }
.cert:hover { background: var(--green); color: #fff; }
.cert:hover .badge { border-color: var(--gold); color: var(--gold); }
.cert .badge { width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 50%; border: 1px solid var(--gold); color: var(--gold); display: flex; align-items: center; justify-content: center; font-family: var(--serif); font-size: 17px; font-weight: 700; transition: all .3s; }
.cert .badge::before { content: "✓"; }

/* ---------- 画廊 ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--line); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.gallery figure { position: relative; height: 260px; overflow: hidden; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s; filter: saturate(.95); }
.gallery figure:hover img { transform: scale(1.07); }
.gallery figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 42px 18px 16px; color: #fff; font-size: 13.5px; letter-spacing: 3px; background: linear-gradient(transparent, rgba(8,40,27,.88)); }

/* ---------- 深色实景大区块 ---------- */
.dark-band { position: relative; padding: 130px 0; background: var(--green-deep); overflow: hidden; }
.dark-band .bgimg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .18; filter: saturate(.7); }
.dark-band .container { position: relative; z-index: 2; text-align: center; }
.dark-band h2 { color: #fff; font-size: 40px; letter-spacing: 6px; font-weight: 800; }
.dark-band h2 em { color: var(--gold); font-style: normal; }
.dark-band p { color: rgba(255,255,255,.78); max-width: 640px; margin: 22px auto 0; font-size: 16px; letter-spacing: 1px; }
.dark-band .rule { width: 72px; height: 2px; background: var(--gold); margin: 0 auto 30px; }

/* ---------- 文化 ---------- */
.culture-list { max-width: 900px; margin: 0 auto; }
.culture-item { display: flex; gap: 30px; padding: 34px 12px; border-bottom: 1px solid var(--line); align-items: flex-start; }
.culture-item:last-child { border-bottom: 0; }
.culture-item .no { flex: none; font-family: var(--serif); font-size: 40px; font-weight: 700; color: var(--gold); width: 66px; line-height: 1; }
.culture-item h4 { font-size: 20px; letter-spacing: 3px; margin-bottom: 10px; font-weight: 700; }
.culture-item p { color: var(--gray); font-size: 15px; }

/* ---------- 联系 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.contact-info-box { background: var(--green-deep); color: #fff; padding: 52px 44px; position: relative; }
.contact-info-box::after { content: ""; position: absolute; inset: 10px; border: 1px solid rgba(195,162,103,.4); pointer-events: none; }
.contact-info-box h3 { font-size: 26px; letter-spacing: 4px; margin-bottom: 6px; }
.contact-info-box .sub { color: var(--gold); font-size: 12.5px; letter-spacing: 4px; margin-bottom: 38px; }
.c-item { display: flex; gap: 18px; margin-bottom: 28px; font-size: 15px; }
.c-item .ci { flex: none; width: 44px; height: 44px; border: 1px solid rgba(195,162,103,.5); color: var(--gold); display: flex; align-items: center; justify-content: center; font-size: 17px; }
.c-item b { display: block; font-size: 12.5px; color: rgba(255,255,255,.6); letter-spacing: 3px; margin-bottom: 4px; font-weight: 500; }
.form-card { background: #fff; padding: 52px 48px; box-shadow: var(--shadow); border-top: 3px solid var(--gold); }
.form-card h3 { font-size: 24px; letter-spacing: 3px; margin-bottom: 30px; font-weight: 800; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 13.5px; color: var(--gray); margin-bottom: 8px; letter-spacing: 2px; }
.field label i { color: #c34a42; font-style: normal; }
.field input, .field textarea { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; font-size: 15px; font-family: var(--font); transition: all .25s; background: #fbfdfc; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(15,69,48,.08); background: #fff; }
.field textarea { min-height: 140px; resize: vertical; }
.form-msg { margin-top: 14px; font-size: 14px; min-height: 20px; }
.form-msg.ok { color: var(--green); }
.form-msg.err { color: #c34a42; }

/* ---------- 登录/注册 ---------- */
.auth-page { min-height: calc(100vh - 126px); display: flex; align-items: center; justify-content: center; padding: 70px 24px 80px; background: var(--green-deep); position: relative; overflow: hidden; }
.auth-page::before { content: ""; position: absolute; width: 560px; height: 560px; border-radius: 50%; border: 90px solid rgba(195,162,103,.08); top: -160px; right: -140px; }
.auth-card { width: 100%; max-width: 460px; background: #fff; padding: 52px 46px; box-shadow: 0 30px 80px rgba(0,0,0,.35); border-top: 3px solid var(--gold); position: relative; z-index: 2; }
.auth-tabs { display: flex; margin-bottom: 38px; border-bottom: 1px solid var(--line); }
.auth-tabs button { flex: 1; background: none; border: 0; padding: 15px 0; font-size: 17px; letter-spacing: 5px; color: var(--gray); cursor: pointer; font-family: var(--font); position: relative; }
.auth-tabs button.on { color: var(--green); font-weight: 700; }
.auth-tabs button.on::after { content: ""; position: absolute; left: 32%; right: 32%; bottom: -1px; height: 3px; background: var(--gold); }
.btn-block { width: 100%; justify-content: center; margin-top: 6px; }
.auth-tip { text-align: center; margin-top: 22px; font-size: 13px; color: var(--gray); }
.auth-tip a { color: var(--green); }

/* ---------- 个人中心 ---------- */
.account-grid { display: grid; grid-template-columns: 330px 1fr; gap: 40px; align-items: start; }
.profile-card { background: var(--green-deep); color: #fff; padding: 46px 34px; text-align: center; position: relative; }
.profile-card::after { content: ""; position: absolute; inset: 9px; border: 1px solid rgba(195,162,103,.4); pointer-events: none; }
.avatar { width: 90px; height: 90px; border-radius: 50%; background: rgba(255,255,255,.1); border: 1px solid rgba(195,162,103,.6); color: var(--gold); margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; font-size: 34px; font-weight: 800; }
.profile-card h3 { letter-spacing: 3px; margin-bottom: 4px; }
.profile-card p { color: rgba(255,255,255,.7); font-size: 14px; margin-bottom: 28px; }
.msg-item { background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--gold); padding: 22px 26px; margin-bottom: 16px; }
.msg-item .meta { font-size: 12.5px; color: var(--gray); margin-bottom: 8px; display: flex; justify-content: space-between; }
.empty { text-align: center; color: var(--gray); padding: 64px 0; letter-spacing: 1px; }

/* ---------- 页脚（厚重） ---------- */
.footer { background: var(--green-deep); color: rgba(255,255,255,.75); padding: 0; position: relative; }
.footer::before { content: ""; display: block; height: 3px; background: linear-gradient(90deg, var(--gold), rgba(195,162,103,.15)); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 52px; padding: 74px 0 56px; }
.footer h4 { color: #fff; font-size: 16.5px; letter-spacing: 3px; margin-bottom: 24px; position: relative; padding-bottom: 12px; }
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2px; background: var(--gold); }
.footer p, .footer a { font-size: 14px; color: rgba(255,255,255,.66); line-height: 2.1; display: block; letter-spacing: .5px; }
.footer a:hover { color: var(--gold); }
.footer .brandline { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.footer .brandline .logo-mark { width: 44px; height: 44px; font-size: 14px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 24px 0; text-align: center; font-size: 12.5px; color: rgba(255,255,255,.45); letter-spacing: 1px; }

/* ---------- 内页横幅 ---------- */
.page-hero { position: relative; padding: 108px 0 96px; background: linear-gradient(115deg, var(--green-deep) 0%, var(--green) 100%); color: #fff; overflow: hidden; }
.page-hero::after { content: ""; position: absolute; right: -150px; top: -150px; width: 460px; height: 460px; border-radius: 50%; border: 70px solid rgba(195,162,103,.13); }
.page-hero::before { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(195,162,103,.6), transparent); }
.page-hero .en { color: var(--gold); letter-spacing: 7px; font-size: 13px; text-transform: uppercase; margin-bottom: 18px; display: inline-flex; align-items: center; gap: 16px; }
.page-hero .en::before { content: ""; width: 48px; height: 1px; background: var(--gold); }
.page-hero h1 { font-size: 48px; letter-spacing: 8px; font-weight: 800; }
.page-hero p { color: rgba(255,255,255,.75); margin-top: 18px; max-width: 640px; font-size: 15px; letter-spacing: 1px; }

/* ---------- 流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); counter-reset: step; }
.step { background: #fff; padding: 40px 22px; text-align: center; position: relative; counter-increment: step; transition: background .3s; }
.step:hover { background: var(--green-light); }
.step::before { content: "0" counter(step); display: block; font-family: var(--serif); font-size: 38px; font-weight: 700; color: var(--gold); margin-bottom: 16px; line-height: 1; }
.step h4 { font-size: 17px; letter-spacing: 2px; margin-bottom: 10px; font-weight: 700; }
.step p { font-size: 13px; color: var(--gray); }

/* ---------- 动效（渐进增强） ---------- */
.reveal { transition: opacity .8s ease, transform .8s ease; }
html.anim .reveal { opacity: 0; transform: translateY(30px); }
html.anim .reveal.in { opacity: 1; transform: none; }
.loading-tip { text-align: center; color: var(--gray); padding: 40px 0; font-size: 14px; letter-spacing: 2px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero h1 { font-size: 46px; }
  .hero-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .hstrip-item:nth-child(2) { border-right: 0; }
  .hstrip-item:nth-child(1), .hstrip-item:nth-child(2) { border-bottom: 1px solid rgba(195,162,103,.25); }
  .scale-grid { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cert-wall { grid-template-columns: repeat(3, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .steps { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 960px) {
  .nav { display: none; position: absolute; top: 88px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 18px; gap: 4px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); z-index: 130; }
  .nav.open { display: flex; }
  .nav a { display: block; text-align: center; padding: 13px; }
  .nav a::after { display: none; }
  .nav .nav-login { margin: 8px auto 0; }
  .menu-btn { display: block; }
  .split { grid-template-columns: 1fr; gap: 44px; }
  .contact-wrap, .account-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .section { padding: 76px 0; }
  .section-head h2 { font-size: 30px; }
  .page-hero h1 { font-size: 34px; }
  .hero h1 { font-size: 34px; letter-spacing: 2px; }
  .cards, .steps, .gallery, .cert-wall, .form-row, .scale-grid, .footer-grid { grid-template-columns: 1fr; }
  .hstrip-item { border-bottom: 1px solid rgba(195,162,103,.25); }
  .auth-card { padding: 38px 26px; }
  .split-img img { height: 320px; }
  .topbar-inner { justify-content: center; }
  .topbar .slogan-t { display: none; }
}