/*
Theme Name: 简达备考 Jianda
Theme URI: https://jiandabk.com
Author: 简达备考
Description: 简达备考官网主题：在线职业资格备考（软考、经济师、社工、注安等）。自适应、首页/干货栏目/文章内容三套版式，内置报名留资表单与后台线索管理。
Version: 1.0.0
Requires at least: 5.5
Requires PHP: 7.2
License: GNU General Public License v2 or later
Text Domain: jianda
*/

/* ============ 变量与基础 ============ */
:root{
  --navy:#10233f;
  --navy2:#16335c;
  --blue:#1f5fa8;
  --blue2:#2f74c4;
  --blue-soft:#eaf2fb;
  --orange:#e8772e;
  --orange2:#f2903f;
  --ink:#1d2733;
  --muted:#5c6b7c;
  --line:#e5ebf2;
  --bg:#f5f8fc;
  --card:#ffffff;
  --gold:#b9872b;
  --green:#1f9d57;
  --radius:14px;
  --shadow:0 10px 30px rgba(16,35,63,.08);
  --shadow-sm:0 4px 14px rgba(16,35,63,.06);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none;transition:color .2s;}
a:hover{color:var(--orange);}
img{max-width:100%;height:auto;display:block;}
h1,h2,h3,h4,h5{line-height:1.35;color:var(--navy);margin:0;}
p{margin:0 0 14px;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px;}
.section{padding:64px 0;}
.section-title{text-align:center;margin-bottom:8px;font-size:28px;}
.section-sub{text-align:center;color:var(--muted);margin-bottom:40px;font-size:15px;}
.crumb{font-size:13px;color:var(--muted);margin-bottom:14px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--blue);}

/* ============ 按钮 ============ */
.btn{
  display:inline-block;padding:12px 26px;border-radius:10px;font-size:15px;font-weight:600;
  border:none;cursor:pointer;text-align:center;transition:transform .15s,box-shadow .2s,background .2s;
}
.btn-orange{background:linear-gradient(135deg,var(--orange),var(--orange2));color:#fff;box-shadow:0 8px 20px rgba(232,119,46,.28);}
.btn-orange:hover{color:#fff;transform:translateY(-2px);}
.btn-blue{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;box-shadow:0 8px 20px rgba(31,95,168,.25);}
.btn-blue:hover{color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.12);}
.btn-lg{padding:15px 34px;font-size:16px;}

/* ============ 顶栏 ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 2px 12px rgba(16,35,63,.06);}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--navy);}
.logo:hover{color:var(--navy);}
.logo-mark{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:#fff;font-size:19px;font-weight:900;
  background:linear-gradient(135deg,var(--blue),var(--blue2));
}
.logo small{display:block;font-size:10px;font-weight:500;color:var(--muted);letter-spacing:1px;line-height:1;}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-menu>li{position:relative;}
.nav-menu>li>a{display:block;padding:10px 14px;color:var(--ink);font-size:15px;font-weight:500;border-radius:8px;}
.nav-menu>li>a:hover,.nav-menu>li.current-menu-item>a{color:var(--blue);background:var(--blue-soft);}
.nav-menu .menu-item-has-children>a::after{content:"▾";font-size:10px;margin-left:5px;color:var(--muted);}
.sub-menu{
  position:absolute;top:calc(100% + 6px);left:0;min-width:190px;background:#fff;border-radius:12px;
  box-shadow:var(--shadow);padding:8px;list-style:none;margin:0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s;
}
.nav-menu>li:hover .sub-menu{opacity:1;visibility:visible;transform:translateY(0);}
.sub-menu a{display:block;padding:9px 12px;font-size:14px;color:var(--ink);border-radius:8px;}
.sub-menu a:hover{background:var(--blue-soft);color:var(--blue);}
.nav-cta{margin-left:8px;}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--navy);cursor:pointer;}

/* ============ 首屏 ============ */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 55%,var(--blue) 100%);color:#fff;padding:78px 0;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(47,116,196,.45),transparent 70%);}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;position:relative;z-index:2;}
.hero-badge{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:6px 16px;border-radius:30px;font-size:13px;margin-bottom:22px;}
.hero h1{color:#fff;font-size:42px;line-height:1.25;margin-bottom:18px;}
.hero h1 em{color:var(--orange2);font-style:normal;}
.hero p.lead{font-size:17px;color:#d7e4f4;margin-bottom:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.hero-points span{background:rgba(255,255,255,.1);padding:7px 15px;border-radius:8px;font-size:14px;}
.hero-buttons{display:flex;gap:14px;flex-wrap:wrap;}
.hero-card{background:#fff;border-radius:18px;padding:30px;color:var(--ink);box-shadow:0 24px 60px rgba(0,0,0,.25);}
.hero-card h3{font-size:20px;margin-bottom:6px;}
.hero-card .hc-sub{color:var(--muted);font-size:14px;margin-bottom:18px;}
.hero-card .qr{width:150px;height:150px;margin:0 auto 14px;border-radius:12px;background:var(--bg);border:1px dashed var(--line);display:grid;place-items:center;color:var(--muted);font-size:12px;text-align:center;padding:10px;overflow:hidden;}
.hero-card .qr img{width:100%;height:100%;object-fit:cover;border-radius:10px;}
.hero-card .hc-tip{text-align:center;font-size:13px;color:var(--muted);margin:0;}

/* ============ 优势 ============ */
.features{background:#fff;}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.feature-item{background:var(--bg);border-radius:var(--radius);padding:28px 24px;transition:transform .2s,box-shadow .2s;}
.feature-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
.feature-item .fi-ico{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;font-size:26px;margin-bottom:16px;background:var(--blue-soft);}
.feature-item h3{font-size:17px;margin-bottom:8px;}
.feature-item p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 中项套餐 ============ */
.plans-head{text-align:center;margin-bottom:12px;}
.plans-head .pill{display:inline-block;background:var(--blue-soft);color:var(--blue);font-size:13px;font-weight:600;padding:5px 16px;border-radius:30px;margin-bottom:10px;}
.plans-head h2{font-size:28px;}
.plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;max-width:900px;margin:0 auto;}
.plan-card{background:#fff;border-radius:18px;padding:34px 30px;box-shadow:var(--shadow-sm);border:2px solid var(--line);position:relative;display:flex;flex-direction:column;}
.plan-card.featured{border-color:var(--orange);box-shadow:0 20px 45px rgba(232,119,46,.15);}
.plan-flag{position:absolute;top:-13px;right:24px;background:linear-gradient(135deg,var(--orange),var(--orange2));color:#fff;font-size:12px;font-weight:600;padding:5px 14px;border-radius:20px;}
.plan-card h3{font-size:21px;margin-bottom:4px;}
.plan-card .plan-mode{font-size:13px;color:var(--muted);margin-bottom:18px;}
.plan-price{font-size:38px;font-weight:800;color:var(--navy);line-height:1;margin-bottom:4px;}
.plan-price small{font-size:14px;font-weight:500;color:var(--muted);}
.plan-valid{font-size:13px;color:var(--muted);margin-bottom:20px;}
.plan-list{list-style:none;padding:0;margin:0 0 24px;}
.plan-list li{padding:9px 0;font-size:14.5px;border-bottom:1px dashed var(--line);display:flex;gap:9px;align-items:flex-start;}
.plan-list li .ck{color:var(--green);font-weight:700;}
.plan-list li.no{color:var(--muted);}
.plan-list li.no .ck{color:#c2cbd6;}
.plan-note{font-size:12.5px;color:var(--muted);text-align:center;margin:22px auto 0;max-width:900px;}
.plan-card .btn{margin-top:auto;width:100%;}

/* ============ 服务体系 ============ */
.services{background:#fff;}
.service-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.service-item{background:var(--bg);border-radius:12px;padding:24px 18px;text-align:center;transition:.2s;}
.service-item:hover{background:var(--blue-soft);transform:translateY(-4px);}
.service-item .s-ico{font-size:30px;margin-bottom:10px;}
.service-item h4{font-size:15px;margin-bottom:6px;}
.service-item p{font-size:12.5px;color:var(--muted);margin:0;}

/* ============ 讲义 ============ */
.notes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.note-card{background:#fff;border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow-sm);border-top:4px solid var(--blue);}
.note-card .n-tag{font-size:12px;color:var(--gold);font-weight:700;letter-spacing:1px;margin-bottom:10px;}
.note-card h3{font-size:17px;margin-bottom:10px;}
.note-card p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 全部课程 ============ */
.courses{background:#fff;}
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.course-card{background:var(--bg);border-radius:var(--radius);padding:26px 24px;transition:.2s;}
.course-card:hover{background:var(--blue-soft);transform:translateY(-4px);}
.course-card .c-badge{display:inline-block;font-size:12px;font-weight:600;padding:3px 11px;border-radius:20px;margin-bottom:12px;}
.badge-adv{background:#fde7d6;color:var(--orange);}
.badge-mid{background:var(--blue-soft);color:var(--blue);}
.badge-eco{background:#e6f6ee;color:var(--green);}
.badge-soc{background:#f0e9fb;color:#7b4fc0;}
.badge-safe{background:#fdeaea;color:#d4453c;}
.course-card h3{font-size:16.5px;margin-bottom:8px;}
.course-card p{font-size:13.5px;color:var(--muted);margin:0;}

/* ============ 报名流程 ============ */
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.process-step{text-align:center;padding:10px;position:relative;}
.process-step .p-num{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;font-size:22px;font-weight:800;display:grid;place-items:center;margin:0 auto 16px;box-shadow:0 10px 22px rgba(31,95,168,.3);}
.process-step h3{font-size:17px;margin-bottom:8px;}
.process-step p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 报名表单 ============ */
.signup{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;}
.signup .section-title,.signup .section-sub{color:#fff;}
.signup .section-sub{color:#c4d4e8;}
.signup-box{max-width:680px;margin:0 auto;background:#fff;border-radius:18px;padding:40px;color:var(--ink);box-shadow:0 24px 60px rgba(0,0,0,.3);}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--navy);}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;background:var(--bg);transition:border .2s;
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:none;border-color:var(--blue);background:#fff;}
.form-row textarea{resize:vertical;min-height:90px;}
.form-grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.hp-field{position:absolute;left:-9999px;}
.signup-box .btn{width:100%;}
.form-privacy{font-size:12.5px;color:var(--muted);margin:14px 0 0;text-align:center;}

/* ============ 页头横幅（内页） ============ */
.page-hero{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;padding:46px 0 40px;}
.page-hero h1{color:#fff;font-size:30px;margin-bottom:6px;}
.page-hero p{color:#d2e0f2;margin:0;font-size:15px;}
.page-hero .crumb a{color:#cddbef;}

/* ============ 栏目页 ============ */
.cat-bar{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0;}
.cat-bar a{padding:8px 18px;background:#fff;border:1px solid var(--line);border-radius:30px;font-size:14px;color:var(--muted);}
.cat-bar a:hover,.cat-bar a.active{background:var(--blue);color:#fff;border-color:var(--blue);}
.layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start;margin-bottom:60px;}
.art-list{min-width:0;}
.art-card{display:flex;gap:20px;background:#fff;border-radius:var(--radius);padding:22px;margin-bottom:20px;box-shadow:var(--shadow-sm);transition:.2s;}
.art-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);color:var(--ink);}
.art-card.featured{border-left:4px solid var(--orange);}
.art-cat{flex:0 0 88px;width:88px;height:88px;border-radius:12px;background:var(--blue-soft);display:grid;place-items:center;font-size:34px;overflow:hidden;}
.art-cat img{width:100%;height:100%;object-fit:cover;}
.art-body{min-width:0;}
.art-body h3{font-size:18px;margin-bottom:8px;}
.art-body p{font-size:14px;color:var(--muted);margin:0 0 10px;}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:12.5px;color:var(--muted);}
.art-meta .tag{background:var(--blue-soft);color:var(--blue);padding:2px 10px;border-radius:20px;font-size:12px;}
.pin{display:inline-block;background:var(--orange);color:#fff;font-size:11px;padding:1px 8px;border-radius:6px;margin-right:7px;vertical-align:middle;}
.pager{display:flex;gap:8px;justify-content:center;margin-top:30px;flex-wrap:wrap;}
.pager .page-numbers,.pager span{min-width:40px;height:40px;padding:0 12px;display:inline-grid;place-items:center;background:#fff;border:1px solid var(--line);border-radius:9px;font-size:14px;color:var(--muted);}
.pager .current{background:var(--blue);border-color:var(--blue);color:#fff;}
.pager a:hover{border-color:var(--blue);color:var(--blue);}
.empty-state{background:#fff;border-radius:var(--radius);padding:60px 30px;text-align:center;color:var(--muted);}

/* ============ 侧栏 ============ */
.sidebar{position:sticky;top:90px;display:flex;flex-direction:column;gap:22px;}
.side-box{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);}
.side-box h4{font-size:16px;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--blue-soft);}
.hot-list{list-style:none;margin:0;padding:0;}
.hot-list li{display:flex;gap:11px;padding:9px 0;border-bottom:1px dashed var(--line);align-items:flex-start;}
.hot-list li:last-child{border-bottom:none;}
.hot-list .n{flex:0 0 22px;width:22px;height:22px;border-radius:6px;background:var(--bg);color:var(--muted);font-size:12px;font-weight:700;display:grid;place-items:center;}
.hot-list li:nth-child(-n+3) .n{background:var(--orange);color:#fff;}
.hot-list a{font-size:13.5px;color:var(--ink);line-height:1.5;}
.hot-list a:hover{color:var(--blue);}
.side-cta{text-align:center;}
.side-cta p{font-size:13.5px;color:var(--muted);}
.side-qr{width:130px;height:130px;margin:0 auto 14px;border-radius:12px;background:var(--bg);border:1px dashed var(--line);display:grid;place-items:center;color:var(--muted);font-size:11px;text-align:center;padding:8px;overflow:hidden;}
.side-qr img{width:100%;height:100%;object-fit:cover;border-radius:10px;}
.side-cta .btn{width:100%;margin-top:4px;}

/* ============ 文章内容 ============ */
.post{background:#fff;border-radius:var(--radius);padding:40px 44px;box-shadow:var(--shadow-sm);min-width:0;}
.entry-title{font-size:30px;line-height:1.35;margin-bottom:18px;}
.post-meta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;font-size:13px;color:var(--muted);padding-bottom:22px;margin-bottom:26px;border-bottom:1px solid var(--line);}
.post-meta .cat{background:var(--blue-soft);color:var(--blue);padding:3px 13px;border-radius:20px;font-weight:600;}
.post-meta .av{margin-right:3px;}
.content{font-size:16px;}
.content h2{font-size:23px;margin:34px 0 16px;padding-left:14px;border-left:5px solid var(--blue);}
.content h3{font-size:19px;margin:26px 0 12px;color:var(--navy2);}
.content h4{font-size:16.5px;margin:20px 0 10px;}
.content p{margin:0 0 16px;}
.content ul,.content ol{margin:0 0 18px;padding-left:24px;}
.content li{margin-bottom:8px;}
.content img{border-radius:10px;margin:18px 0;}
.content blockquote{margin:20px 0;padding:16px 22px;background:var(--blue-soft);border-left:4px solid var(--blue);border-radius:0 10px 10px 0;color:var(--navy2);}
.content blockquote p:last-child{margin-bottom:0;}
.content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;display:block;overflow-x:auto;}
.content th,.content td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.content th{background:var(--navy);color:#fff;}
.content tr:nth-child(even) td{background:var(--bg);}
.content a{text-decoration:underline;text-underline-offset:3px;}
.content .wp-block-table table{display:table;}
.callout{border-radius:12px;padding:18px 22px;margin:20px 0;font-size:14.5px;}
.callout-blue{background:var(--blue-soft);border:1px solid #cfe0f4;}
.callout-orange{background:#fdf1e5;border:1px solid #f6d8ba;}
.callout strong{display:block;margin-bottom:4px;}
.alignleft{float:left;margin:0 20px 12px 0;}
.alignright{float:right;margin:0 0 12px 20px;}
.aligncenter{margin-left:auto;margin-right:auto;}
.wp-caption{max-width:100%;}
.post-cta{margin:38px 0 8px;background:linear-gradient(135deg,var(--navy),var(--blue));border-radius:14px;padding:32px;text-align:center;color:#fff;}
.post-cta h3{color:#fff;font-size:20px;margin-bottom:8px;}
.post-cta p{color:#d4e2f3;margin-bottom:20px;}
.post-cta .btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.tag-links{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0;}
.tag-links a{background:var(--bg);padding:5px 14px;border-radius:20px;font-size:13px;color:var(--muted);}
.tag-links a:hover{background:var(--blue);color:#fff;}
.pagenav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0;}
.pagenav a{background:var(--bg);border-radius:10px;padding:14px 18px;font-size:14px;color:var(--ink);display:flex;flex-direction:column;}
.pagenav a span{font-size:12px;color:var(--muted);margin-bottom:3px;}
.pagenav a.next{text-align:right;}
.pagenav a:hover{background:var(--blue-soft);color:var(--blue);}

/* TOC 目录 */
.toc{font-size:13.5px;}
.toc a{display:block;color:var(--muted);padding:6px 0;border-bottom:1px dashed var(--line);line-height:1.5;}
.toc a.toc-h3{padding-left:16px;font-size:13px;}
.toc a.active{color:var(--blue);font-weight:600;}
.toc a:hover{color:var(--blue);}

/* 评论 */
.comments-area{margin-top:40px;padding-top:30px;border-top:1px solid var(--line);}
.comments-title{font-size:19px;margin-bottom:20px;}
.comment-list{list-style:none;padding:0;}
.comment-body{background:var(--bg);border-radius:10px;padding:16px 18px;margin-bottom:14px;}
.comment-author{font-weight:600;font-size:14px;}
.comment-meta{font-size:12px;color:var(--muted);margin-bottom:6px;}
.comment-reply-link{font-size:13px;}
.comment-form input,.comment-form textarea{width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:9px;font-family:inherit;margin-bottom:12px;}
.comment-form input:focus,.comment-form textarea:focus{outline:none;border-color:var(--blue);}
#submit{background:var(--blue);color:#fff;border:none;padding:11px 28px;border-radius:9px;cursor:pointer;font-size:14px;width:auto;}

/* ============ 页脚 ============ */
.site-footer{background:#0b1a30;color:#aebfd4;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:40px;}
.site-footer .logo{color:#fff;margin-bottom:14px;}
.footer-about{font-size:13.5px;line-height:1.8;color:#93a7c0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#93a7c0;font-size:13.5px;}
.footer-col a:hover{color:var(--orange2);}
.footer-contact p{font-size:13.5px;color:#93a7c0;margin-bottom:12px;display:flex;gap:9px;align-items:flex-start;}
.footer-qr{width:120px;height:120px;border-radius:10px;background:#16283f;border:1px dashed #2c415c;display:grid;place-items:center;color:#6c809c;font-size:11px;text-align:center;padding:8px;overflow:hidden;}
.footer-qr img{width:100%;height:100%;object-fit:cover;border-radius:8px;}
.footer-bottom{border-top:1px solid #1c2f49;padding:20px 0;text-align:center;font-size:12.5px;color:#6c809c;}
.footer-bottom a{color:#6c809c;}

/* ============ 自适应 ============ */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .service-grid{grid-template-columns:repeat(3,1fr);}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .layout{grid-template-columns:1fr;}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .sidebar .side-box{flex:1 1 280px;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .section{padding:48px 0;}
  .section-title,.plans-head h2{font-size:24px;}
  .nav-menu,.nav-cta{display:none;}
  .nav-menu.open{
    display:flex;flex-direction:column;align-items:stretch;position:absolute;top:70px;left:0;right:0;
    background:#fff;padding:14px 20px;box-shadow:var(--shadow);gap:2px;max-height:75vh;overflow-y:auto;
  }
  .nav-menu.open .sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding-left:14px;}
  .nav-toggle{display:block;}
  .hero{padding:54px 0;}
  .hero h1{font-size:31px;}
  .plan-grid,.feature-grid,.service-grid,.notes-grid,.course-grid,.process-grid,.form-grid2,.footer-grid{grid-template-columns:1fr;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .post{padding:28px 22px;}
  .entry-title{font-size:24px;}
  .art-card{flex-direction:column;gap:14px;}
  .art-cat{width:100%;height:150px;flex-basis:auto;}
  .pagenav{grid-template-columns:1fr;}
  .sidebar{flex-direction:column;}
}
@media (max-width:420px){
  .hero-buttons .btn,.hero-buttons{width:100%;}
  .service-grid{grid-template-columns:1fr;}
}

/* ============ 打印 ============ */
@media print{
  .site-header,.nav-toggle,.post-cta,.sidebar,.site-footer,.signup,.pager,.cat-bar{display:none !important;}
  body{background:#fff;color:#000;}
  .post,.content{box-shadow:none;padding:0;}
  a{color:#000;text-decoration:none;}
}