/*
Theme Name: Qin Architecture
Theme URI: https://www.gbsteel.com/
Author: Qin Architecture Blog
Description: A clean engineering archive theme for the Qin Architecture Blog.
Version: 1.0.1
Requires at least: 6.4
Requires PHP: 8.0
Text Domain: qin-architecture
*/
:root{--ink:#17313b;--muted:#60747a;--paper:#f7f3eb;--surface:#fffdf8;--line:#d9ded9;--accent:#e85d37;--accent-soft:#fbe2d7;--blue:#447c8c;--shadow:0 18px 55px rgba(23,49,59,.09);font-family:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",system-ui,sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:999;background:var(--ink);color:#fff;padding:9px 14px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:20;background:rgba(247,243,235,.91);backdrop-filter:blur(16px);border-bottom:1px solid rgba(23,49,59,.09)}.admin-bar .site-header{top:32px}.header-inner{max-width:1180px;height:76px;margin:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:12px;line-height:1}.brand-mark{width:38px;height:38px;display:flex;align-items:flex-end;justify-content:center;gap:3px;padding:8px;border-radius:10px;background:var(--ink)}.brand-mark i{width:5px;background:#fff;transform:skewY(-22deg)}.brand-mark i:nth-child(1){height:13px}.brand-mark i:nth-child(2){height:22px;background:var(--accent)}.brand-mark i:nth-child(3){height:17px}.brand-copy{display:grid;gap:5px}.brand-copy strong{font-size:19px;letter-spacing:.08em}.brand-copy small{font-size:10px;color:var(--muted);letter-spacing:.25em}.primary-menu{display:flex;align-items:center;gap:29px;margin:0;padding:0;list-style:none;font-size:14px;font-weight:650}.primary-menu a{display:block;padding:26px 0 23px;border-bottom:3px solid transparent}.primary-menu .current-menu-item>a,.primary-menu a:hover{color:var(--accent);border-color:var(--accent)}.header-search{font-size:22px}.preview-note{padding:7px 20px;text-align:center;background:var(--ink);color:#ecf4f1;font-size:12px}.hero-shell{position:relative;max-width:1280px;margin:auto;padding:76px 52px 0;overflow:hidden;background-image:linear-gradient(rgba(23,49,59,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(23,49,59,.035) 1px,transparent 1px);background-size:46px 46px}.hero{width:58%;padding:25px 0 82px}.eyebrow{margin:0 0 13px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.25em}.hero h1{margin:0;font-family:Georgia,"Noto Serif SC",serif;font-size:clamp(43px,5vw,72px);line-height:1.16;letter-spacing:-.025em}.hero h1 em{color:var(--accent);font-style:normal}.hero p{max-width:610px;color:var(--muted);font-size:17px;line-height:1.9}.hero-button{display:inline-flex;gap:24px;padding:11px 18px;background:var(--ink);color:#fff;border-radius:7px;font-weight:700}.hero-structure{position:absolute;right:5%;top:74px;width:38%;height:260px;color:var(--ink);opacity:.9}.hero-structure::before,.hero-structure::after{content:"";position:absolute;inset:30px;border:7px solid currentColor;clip-path:polygon(0 100%,0 28%,50% 0,100% 28%,100% 100%,96% 100%,96% 33%,50% 7%,4% 33%,4% 100%)}.hero-structure::after{inset:88px 45px 30px;border-width:5px;border-color:var(--accent);clip-path:polygon(0 100%,24% 0,30% 0,8% 100%,46% 0,52% 0,78% 100%,94% 0,100% 0,86% 100%)}.stats{position:relative;display:grid;grid-template-columns:repeat(3,1fr);background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.stats>div{padding:23px 30px;display:flex;align-items:baseline;gap:13px}.stats>div+div{border-left:1px solid var(--line)}.stats strong{font-family:Georgia,serif;font-size:29px;color:var(--accent)}.stats span{font-size:13px;color:var(--muted)}.site-main{max-width:1180px;margin:80px auto;padding:0 24px 100px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}.section-head h1,.section-head h2{margin:0;font-family:Georgia,"Noto Serif SC",serif;font-size:40px;line-height:1.3}.section-head p{margin:0;color:var(--muted)}.category-nav{display:flex;flex-wrap:wrap;gap:8px;padding:17px 0 24px;border-top:1px solid var(--line);list-style:none}.category-nav a{display:block;padding:7px 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px}.category-nav a:hover{background:var(--ink);border-color:var(--ink);color:#fff}.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.post-card{position:relative;min-height:300px;display:flex;flex-direction:column;padding:26px;background:var(--surface);border:1px solid var(--line);border-radius:13px;transition:.25s}.post-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.post-card::before{content:"";position:absolute;left:0;top:27px;width:4px;height:44px;background:var(--accent);opacity:0;transition:.2s}.post-card:hover::before{opacity:1}.post-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.post-category{color:var(--blue);font-weight:800}.post-card h2{margin:26px 0 13px;font-family:Georgia,"Noto Serif SC",serif;font-size:21px;line-height:1.5}.post-card h2 a::after{content:"";position:absolute;inset:0}.post-card .excerpt{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.post-card footer{margin-top:auto;padding-top:22px;color:var(--muted);font-size:12px}.protected-label{color:#79503d;font-weight:700}.pagination{margin:40px 0;text-align:center}.pagination .page-numbers{display:inline-block;margin:3px;padding:7px 12px;border:1px solid var(--line);border-radius:5px}.pagination .current{background:var(--ink);color:#fff}.entry-wrap{max-width:900px;margin:55px auto 110px;padding:0 24px}.breadcrumb{color:var(--muted);font-size:13px}.breadcrumb a{color:var(--accent);font-weight:700}.entry-header{padding:45px 0 35px;border-bottom:1px solid var(--line)}.entry-header h1{margin:10px 0 18px;font-family:Georgia,"Noto Serif SC",serif;font-size:clamp(34px,5vw,56px);line-height:1.25}.entry-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px}.entry-content{padding-top:38px;font-family:Georgia,"Noto Serif SC",serif;font-size:17px;line-height:2}.entry-content h2,.entry-content h3{margin-top:2em;line-height:1.4}.entry-content a{color:#176b86;text-decoration:underline;text-underline-offset:3px}.entry-content img{display:block;margin:28px auto;border-radius:6px}.entry-content blockquote{margin:28px 0;padding:16px 23px;border-left:4px solid var(--accent);background:var(--accent-soft)}.entry-content table{width:100%;border-collapse:collapse;font-size:14px}.entry-content th,.entry-content td{padding:9px;border:1px solid var(--line)}.post-password-form{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.post-password-form input[type=password]{padding:9px;border:1px solid var(--line)}.post-password-form input[type=submit],.search-submit{padding:10px 16px;border:0;border-radius:5px;background:var(--accent);color:#fff}.search-form{display:flex;max-width:620px;gap:8px}.search-field{width:100%;padding:12px;border:1px solid var(--line);background:var(--surface)}.empty-state{padding:45px;background:var(--surface);border:1px solid var(--line);border-radius:12px;text-align:center}.site-footer{max-width:1180px;margin:auto;padding:34px 24px 44px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:28px;color:var(--muted);font-size:12px}.footer-brand{display:grid;align-content:start;gap:3px}.footer-brand strong{color:var(--ink);font-size:14px}.footer-meta{max-width:650px;text-align:right}.footer-meta p{margin:0 0 7px}.copyright{color:#43575e}.copyright a{color:var(--ink);font-weight:700;text-decoration:underline;text-underline-offset:3px}.copyright a:hover{color:var(--accent)}
@media(max-width:900px){.hero-shell{padding:54px 28px 0}.hero{width:68%}.hero-structure{right:-8%;opacity:.35}.post-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:782px){.admin-bar .site-header{top:46px}}
@media(max-width:650px){.header-inner{height:auto;min-height:66px;padding:11px 18px;align-items:flex-start}.primary-menu{display:none}.hero-shell{padding:45px 20px 0}.hero{width:100%;padding-bottom:50px}.hero-structure{display:none}.hero h1{font-size:41px}.stats{grid-template-columns:1fr}.stats>div+div{border-left:0;border-top:1px solid var(--line)}.site-main{margin-top:58px;padding:0 18px 75px}.section-head{align-items:flex-start;flex-direction:column}.post-grid{grid-template-columns:1fr}.entry-wrap{padding:0 20px}.site-footer{flex-direction:column;padding:28px 20px}.footer-meta{text-align:left}}
