/* ============================================================
   glsqs.com 特种作业考证咨询 · 全站共享样式 base.css
   登山机能风：深军绿 / 炭黑 / 橘红
   本文件为全站底座，请勿修改；页面独有布局请写入 css/pages/<页面>.css
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--font-cn);font-size:15px;line-height:1.75;color:var(--white);background:var(--c1);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:none;outline:none}
button{cursor:pointer}
h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.3;color:var(--white)}
strong{font-weight:700}
::selection{background:var(--o1);color:#fff}
:focus-visible{outline:2px solid var(--o1);outline-offset:2px}

/* ---------- 2. 设计变量 ---------- */
:root{
  --g1:#2C372A;--g2:#3E4C39;--g3:#6B7D5C;--g4:#A8B598;
  --c1:#15181B;--c2:#1E2329;--c3:#2A313A;
  --o1:#E05B20;--o2:#F47B33;
  --paper:#F4F1E8;--white:#F7F8F4;
  --line-d:rgba(255,255,255,.09);--line-l:rgba(20,24,27,.12);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-en:"Bahnschrift","Arial Narrow","DIN Alternate",Arial,sans-serif;
  --header-h:76px;
}

/* ---------- 3. 布局容器 ---------- */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;background:var(--c1)}
.section--paper{background:var(--paper);color:var(--c1)}
.section--paper h1,.section--paper h2,.section--paper h3,.section--paper h4{color:var(--c1)}
.section--g2{background:var(--g1)}
.section--c2{background:var(--c2)}

/* 区块头：英文 kicker + 中文标题 + 说明 */
.sec-head{margin-bottom:56px}
.sec-head--center{text-align:center}
.sec-head__kick{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-en);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--o1);margin-bottom:14px}
.sec-head__kick::before{content:"";width:34px;height:2px;background:var(--o1)}
.sec-head--center .sec-head__kick::after{content:"";width:34px;height:2px;background:var(--o1)}
.sec-head h2{font-size:clamp(26px,3.4vw,42px);font-weight:900;letter-spacing:.02em}
.sec-head--center h2::after{content:"";display:block;width:64px;height:4px;background:repeating-linear-gradient(90deg,var(--o1) 0 10px,transparent 10px 16px);margin:18px auto 0}
.sec-head--left h2::after{content:"";display:block;width:64px;height:4px;background:repeating-linear-gradient(90deg,var(--o1) 0 10px,transparent 10px 16px);margin:18px 0 0}
.sec-head__sub{margin-top:14px;max-width:640px;color:var(--g4);font-size:15px}
.section--paper .sec-head__sub{color:#5A6158}
.sec-head--center .sec-head__sub{margin-left:auto;margin-right:auto}

/* ---------- 4. 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 30px;font-size:15px;font-weight:700;letter-spacing:.04em;color:#fff;background:var(--o1);clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);transition:background .25s,transform .25s,box-shadow .25s;position:relative}
.btn:hover{background:var(--o2);transform:translateY(-3px);box-shadow:0 12px 26px rgba(224,91,32,.28)}
.btn--ghost{background:transparent;border:1px solid var(--line-d);color:var(--white);clip-path:none}
.btn--ghost:hover{background:var(--g2);border-color:var(--g3);box-shadow:none;transform:translateY(-3px)}
.section--paper .btn--ghost{color:var(--c1);border-color:var(--line-l)}
.btn--dark{background:var(--c1);color:#fff}
.btn--dark:hover{background:var(--c3);box-shadow:none}
.btn--block{width:100%}
.btn__arrow{transition:transform .25s}
.btn:hover .btn__arrow{transform:translateX(5px)}
.btn--sm{padding:9px 18px;font-size:13px}

/* ---------- 5. 标签 / 徽章 / 数字 ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;font-size:12px;letter-spacing:.06em;color:var(--g4);border:1px solid var(--line-d);background:rgba(255,255,255,.03)}
.tag--o{color:var(--o1);border-color:rgba(224,91,32,.4)}
.tag--g{color:var(--g3);border-color:rgba(107,125,92,.4)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;font-size:12px;font-weight:700;color:#fff;background:var(--o1);clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.num{font-family:var(--font-en);font-weight:900;line-height:1;letter-spacing:.02em}
.num--stroke{color:transparent;-webkit-text-stroke:1.5px var(--g3)}

/* ---------- 6. 卡片 ---------- */
.card{background:var(--c3);border:1px solid var(--line-d);position:relative;transition:transform .3s,border-color .3s}
.card::before{content:"";position:absolute;top:-1px;left:-1px;width:26px;height:26px;border-top:3px solid var(--o1);border-left:3px solid var(--o1)}
.card:hover{transform:translateY(-6px);border-color:rgba(224,91,32,.45)}
.card__body{padding:28px}
.card__icon{width:52px;height:52px;display:grid;place-items:center;color:var(--o1);background:rgba(224,91,32,.08);border:1px solid rgba(224,91,32,.3);margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--g4);font-size:14px}
.section--paper .card{background:#fff;border-color:var(--line-l);box-shadow:0 10px 30px rgba(20,24,27,.06)}
.section--paper .card p{color:#6A7268}

/* ---------- 7. 表单 ---------- */
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:700;letter-spacing:.05em;color:var(--g3);margin-bottom:8px}
.field label i{color:var(--o1);font-style:normal}
.input,.select,.textarea{width:100%;padding:13px 16px;font-size:14px;color:var(--white);background:var(--c2);border:1px solid var(--line-d);transition:border-color .25s,box-shadow .25s}
.input::placeholder,.textarea::placeholder{color:#7C878E}
.input:focus,.select:focus,.textarea:focus{border-color:var(--o1);box-shadow:0 0 0 3px rgba(224,91,32,.15)}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A8B598' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.textarea{min-height:130px;resize:vertical}
.form-note{font-size:12px;color:var(--g4);margin-top:8px}
.section--paper .input,.section--paper .select,.section--paper .textarea{background:#fff;border-color:var(--line-l);color:var(--c1)}
.section--paper .input::placeholder,.section--paper .textarea::placeholder{color:#9AA19A}
.form-ok{display:none;padding:14px 18px;border:1px solid rgba(107,125,92,.5);background:rgba(107,125,92,.12);color:var(--g3);font-size:14px;margin-top:6px}
.form-ok.is-show{display:block}

/* ---------- 8. 表格 ---------- */
.tbl{width:100%;border-collapse:collapse;table-layout:fixed;font-size:14px}
.tbl th{padding:14px 16px;text-align:left;font-size:13px;letter-spacing:.08em;color:var(--g3);border-bottom:2px solid rgba(224,91,32,.55);background:rgba(255,255,255,.02)}
.tbl td{padding:13px 16px;border-bottom:1px solid var(--line-d);color:var(--g4)}
.tbl tbody tr{transition:background .2s}
.tbl tbody tr:hover{background:rgba(255,255,255,.03)}
.tbl--paper th{background:var(--g1);color:#fff}
.tbl--paper td{border-bottom:1px solid var(--line-l);color:#4C5449}
.tbl-wrap{overflow-x:auto}

/* ---------- 9. 步骤条 / 时间轴 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps__item{position:relative;padding:26px 22px;background:var(--c2);border:1px solid var(--line-d)}
.steps__item::after{content:"";position:absolute;top:50%;right:-20px;width:20px;height:2px;background:repeating-linear-gradient(90deg,var(--o1) 0 6px,transparent 6px 12px)}
.steps__item:last-child::after{display:none}
.steps__no{font-family:var(--font-en);font-size:38px;font-weight:900;color:var(--o1);-webkit-text-stroke:1px rgba(224,91,32,.6)}
.steps__item h3{font-size:17px;margin:10px 0 8px}
.steps__item p{font-size:13px;color:var(--g4)}

/* 三列时间轴（时间/轴/内容），圆点居中、轴线 calc 推导 */
.timeline{display:grid;grid-template-columns:120px 48px 1fr;row-gap:0;position:relative}
.timeline__item{display:contents}
.timeline__time{padding:22px 0;text-align:right;font-family:var(--font-en);font-weight:800;font-size:15px;color:var(--g3)}
.timeline__axis{display:grid;justify-items:center;position:relative}
.timeline__axis::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--line-d);transform:translateX(-50%)}
.timeline__dot{width:14px;height:14px;margin-top:26px;border:3px solid var(--o1);background:var(--c1);justify-self:center;z-index:1}
.timeline__body{padding:20px 0 20px 26px;border-bottom:1px dashed var(--line-d)}
.timeline__body h3{font-size:17px;margin-bottom:6px}
.timeline__body p{font-size:13px;color:var(--g4)}
.section--paper .timeline__dot{background:var(--paper)}

/* ---------- 10. 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--g4);padding:18px 0}
.crumbs a{color:var(--g3);transition:color .2s}
.crumbs a:hover{color:var(--o1)}
.crumbs b{color:var(--white);font-weight:600}

/* ---------- 11. 页头（滚动变色） ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-h);background:linear-gradient(180deg,rgba(21,24,27,.72),rgba(21,24,27,0));transition:background .35s,box-shadow .35s,height .35s}
.site-header.is-solid{background:rgba(21,24,27,.94);backdrop-filter:blur(10px);box-shadow:0 4px 24px rgba(0,0,0,.35)}
.header-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-logo{height:46px;width:auto}
.site-footer .brand-logo{height:38px}
.brand-name{display:flex;flex-direction:column;line-height:1.25;font-weight:900;font-size:17px;color:var(--white);letter-spacing:.03em}
.brand-name em{font-style:normal;font-family:var(--font-en);font-size:10px;letter-spacing:.26em;color:var(--o1);text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;padding:10px 15px;font-size:14.5px;font-weight:600;color:var(--g4);transition:color .25s}
.main-nav a::after{content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;background:var(--o1);transform:scaleX(0);transform-origin:left;transition:transform .28s}
.main-nav a:hover{color:var(--white)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--white)}
.main-nav a.active::after{transform:scaleX(1)}
.header-side{display:flex;align-items:center;gap:16px}
.header-tel{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-en);font-weight:800;font-size:16px;letter-spacing:.04em;color:var(--o1);border:1px solid rgba(224,91,32,.45);padding:8px 16px;clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);transition:background .25s,color .25s}
.header-tel:hover{background:var(--o1);color:#fff}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-d);position:relative}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;background:var(--white);transition:transform .3s,opacity .3s,top .3s}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle.is-open span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* 面包屑页头(非 hero 页面顶距) */
.page-top{padding-top:calc(var(--header-h) + 20px)}

/* ---------- 12. 页脚 ---------- */
.site-footer{background:var(--c1);border-top:1px solid var(--line-d);position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:repeating-linear-gradient(90deg,var(--o1) 0 60px,var(--g1) 60px 120px)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr;gap:36px;padding:72px 0 48px}
.footer-brand p{font-size:13px;color:var(--g4);margin:18px 0 14px;max-width:320px}
.footer-line{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--g3)}
.footer-col h4{font-size:14px;letter-spacing:.14em;color:var(--white);margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--o1)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:13.5px;color:var(--g4);transition:color .2s,padding-left .2s}
.footer-col ul a:hover{color:var(--o1);padding-left:6px}
.footer-tel{font-family:var(--font-en);font-weight:800;font-size:17px;color:var(--o1)!important}
.footer-bottom{border-top:1px solid var(--line-d);padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom p{font-size:12.5px;color:#6E7A82}
.footer-bottom .footer-icp{color:#6E7A82;font-size:12.5px}

/* ---------- 13. 动画 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}.reveal-d2{transition-delay:.16s}.reveal-d3{transition-delay:.24s}
.reveal-d4{transition-delay:.32s}.reveal-d5{transition-delay:.4s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* 回到顶部 */
.to-top{position:fixed;right:26px;bottom:30px;width:46px;height:46px;z-index:90;display:grid;place-items:center;background:var(--o1);color:#fff;opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .3s,transform .3s,visibility .3s;clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.to-top.is-show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--o2)}

/* CTA 通用块（每页样式在页面 css 中差异化，这里只给基础容器） */
.cta-zone{padding:88px 0}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:900px){
  .main-nav{position:fixed;top:var(--header-h);left:0;right:0;flex-direction:column;align-items:stretch;background:rgba(21,24,27,.98);border-bottom:1px solid var(--line-d);padding:12px 20px 20px;transform:translateY(-16px);opacity:0;visibility:hidden;transition:transform .3s,opacity .3s,visibility .3s}
  .main-nav.is-open{transform:none;opacity:1;visibility:visible}
  .main-nav a{padding:14px 8px;border-bottom:1px dashed var(--line-d);font-size:15px}
  .main-nav a::after{display:none}
  .nav-toggle{display:block}
  .steps{grid-template-columns:1fr 1fr}
  .steps__item::after{display:none}
  .section{padding:64px 0}
}
@media (max-width:640px){
  .brand-logo{height:34px;width:auto}
  .brand-name{font-size:14px}
  .header-tel{display:none}
  .steps{grid-template-columns:1fr}
  .timeline{grid-template-columns:84px 34px 1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .sec-head{margin-bottom:38px}
}