/*
Theme Name: 星火之光AI
Theme URI: https://sparklight-ai.com/
Author: 深圳星火之光传媒有限公司 · AI教育培训中心
Author URI: https://sparklight-ai.com/
Description: 星火之光AI教育培训中心官方主题。基于品牌 VI 规范（主靛蓝 #2D326B / 柔珊瑚 #FF6B5B / 暖白 #FBF8F4，70/20/10 用色比例）构建，内置首屏轮播、四层进阶课程体系、青少年AI课程表、留资表单、浮动联系方式与 GEO 结构化数据（EducationalOrganization / BreadcrumbList / FAQPage）。零外部 CDN 依赖，适配 2C2G 轻量服务器。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sparklight
Tags: education, business, one-column, custom-colors, custom-menu, custom-logo, featured-images, translation-ready
*/

/* ============================================================
   星火之光AI · VI 基础色彩规范
   靛蓝负责可信，珊瑚负责温度
   建议比例：中性背景 70%，靛蓝 20%，珊瑚及强调色不超过 10%
   ============================================================ */
:root{
  --indigo:#2D326B;        /* 主靛蓝·可信 */
  --indigo-deep:#1E2238;   /* 深墨色·锚定 */
  --coral:#FF6B5B;         /* 柔珊瑚·温度 */
  --coral-deep:#C9473A;    /* 深珊瑚·强调 */
  --warm:#FBF8F4;          /* 暖白·背景 */
  --pale-indigo:#EFF0FA;   /* 淡靛蓝 */
  --pale-coral:#FFF0EC;    /* 淡珊瑚 */
  --line:#DEDDE7;          /* 描边 */
  --muted:#6E7181;         /* 中性灰 */
  --white:#ffffff;
  --ink:#1E2238;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC","Hiragino Sans GB",sans-serif;background:var(--warm);color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
section{padding:84px 0}
.center{text-align:center}

/* WordPress 无障碍与管理条兼容 */
.screen-reader-text{border:0;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;word-wrap:normal!important}
.skip-link:focus{clip:auto!important;clip-path:none;display:block;left:8px;top:8px;z-index:9999;background:#fff;color:var(--indigo);padding:12px 20px;border-radius:8px;font-weight:800;position:fixed}
body.admin-bar header{top:32px}
@media screen and (max-width:782px){body.admin-bar header{top:46px}}

/* ===== 区块标题 ===== */
.sec-head{text-align:center;max-width:760px;margin:0 auto 46px}
.sec-head .kicker{display:inline-block;color:var(--coral-deep);font-size:13px;font-weight:800;letter-spacing:3px;margin-bottom:12px}
.sec-head h2{font-size:30px;font-weight:800;color:var(--indigo);letter-spacing:-.01em;line-height:1.3}
.sec-head .lead{color:var(--muted);font-size:15px;margin-top:14px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;padding:13px 28px;border-radius:999px;transition:.22s;cursor:pointer;border:1.5px solid transparent}
.btn-primary{background:var(--indigo);color:#fff}
.btn-primary:hover{background:var(--indigo-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(45,50,107,.28)}
.btn-coral{background:var(--coral);color:#fff}
.btn-coral:hover{background:var(--coral-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,91,.32)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-outline{border-color:var(--indigo);color:var(--indigo)}
.btn-outline:hover{background:var(--indigo);color:#fff}
.btn-lg{padding:15px 34px;font-size:16px}

/* ===== 顶部导航 ===== */
header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;color:var(--indigo);letter-spacing:.5px}
.logo .mark{width:34px;height:34px;display:flex;align-items:center;justify-content:center}
.logo .mark svg{width:30px;height:30px}
.logo .mark img{width:34px;height:34px;object-fit:contain}
.logo b{color:var(--coral)}
.nav-desktop{display:flex;gap:6px}
.nav-desktop ul{list-style:none;display:flex;gap:6px;margin:0;padding:0}
.nav-desktop a{display:block;font-size:14.5px;font-weight:600;color:var(--ink);padding:8px 14px;border-radius:8px;transition:.2s}
.nav-desktop a:hover,.nav-desktop .current-menu-item>a{color:var(--indigo);background:var(--pale-indigo)}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2.5px;background:var(--indigo);border-radius:2px;transition:.25s}
.nav-mobile{display:none;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:8px 0}
.nav-mobile ul{list-style:none;margin:0;padding:0}
.nav-mobile a{display:block;padding:12px 24px;font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.nav-mobile li:last-child a{border-bottom:0}

/* ===== Hero 轮播 ===== */
.hero{position:relative;overflow:hidden;background:var(--indigo-deep);color:#fff;padding:0}
.hero-slider{position:relative;height:640px}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .8s ease,visibility .8s}
.hero-slide.active{opacity:1;visibility:visible}
.hero-slide .bg{position:absolute;inset:0;z-index:0;background-size:cover;background-position:center}
.hero-slide .bg::after{content:"";position:absolute;inset:0;background:rgba(30,34,56,.45)}
.hero .wrap{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.hero-content{max-width:720px;padding:96px 0 86px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,107,91,.16);border:1px solid rgba(255,107,91,.35);color:#ffd2cb;font-size:13px;font-weight:700;padding:7px 16px;border-radius:999px;margin-bottom:26px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px rgba(255,107,91,.2)}
.hero h1{font-size:54px;font-weight:900;letter-spacing:-.02em;line-height:1.1}
.hero h1 .accent{color:var(--coral)}
.hero-sub{font-size:19px;color:#e7e9f3;margin-top:20px;max-width:680px;line-height:1.7}
.hero-sub b{color:#fff;font-weight:800}
.hero-cta{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}
.hero-stats{display:flex;gap:46px;flex-wrap:wrap;margin-top:54px;padding-top:34px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stats .s b{display:block;font-size:32px;font-weight:900;color:#fff;line-height:1.1}
.hero-stats .s span{font-size:13.5px;color:#b9bdd6;margin-top:4px;display:block}
.hero-dots{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.hero-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.35);cursor:pointer;transition:.25s;border:0;padding:0}
.hero-dot.active{background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.15)}

/* 轮播占位图色版 */
.slide-bg-1{background:linear-gradient(135deg,var(--indigo) 0%,var(--indigo-deep) 100%)}
.slide-bg-2{background:linear-gradient(135deg,#3a3f6e 0%,var(--coral-deep) 100%)}
.slide-bg-3{background:linear-gradient(135deg,var(--coral) 0%,var(--indigo-deep) 100%)}
.placeholder-label{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.18);font-size:120px;font-weight:900;letter-spacing:-4px;user-select:none}

/* ===== 使命愿景价值观 ===== */
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:22px}
.mv-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 10px 30px rgba(45,50,107,.06)}
.mv-card .lbl{display:inline-block;font-size:12px;letter-spacing:4px;color:var(--coral-deep);font-weight:800;margin-bottom:12px}
.mv-card .big{font-size:21px;font-weight:800;color:var(--indigo);line-height:1.55}
.val-title{text-align:center;font-size:13px;letter-spacing:4px;color:var(--coral-deep);font-weight:800;margin:36px 0 20px}
.val-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.val-card{background:var(--pale-indigo);border-radius:14px;padding:22px 18px;text-align:center;transition:.25s}
.val-card:hover{transform:translateY(-4px);background:var(--pale-coral);box-shadow:0 14px 30px rgba(255,107,91,.18)}
.val-card .vk{font-size:19px;font-weight:900;color:var(--indigo);margin-bottom:8px}
.val-card .vd{font-size:12.5px;color:var(--muted);line-height:1.6}

/* ===== 通用底色区块 ===== */
.band-light{background:var(--warm)}
.band-white{background:#fff}
.band-indigo{background:linear-gradient(135deg,var(--indigo),var(--indigo-deep));color:#fff}
.band-indigo .sec-head h2{color:#fff}
.band-indigo .sec-head .lead{color:#c6c9dc}
.band-indigo .sec-head .kicker{color:var(--coral)}

/* ===== 行业洞察 + 数据强调 ===== */
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.insight-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px 28px;transition:.25s}
.insight-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(45,50,107,.12)}
.insight-ic{width:54px;height:54px;border-radius:14px;background:var(--pale-coral);color:var(--coral-deep);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.insight-card h3{font-size:19px;color:var(--indigo);margin-bottom:10px}
.insight-card p{font-size:14px;color:var(--muted);line-height:1.7}
.insight-tag{display:inline-block;margin-top:16px;font-size:12px;font-weight:800;color:var(--coral-deep);background:var(--pale-coral);padding:4px 12px;border-radius:999px}

.data-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:46px}
.data-stat{background:linear-gradient(135deg,var(--indigo),var(--indigo-deep));border-radius:18px;padding:34px 28px;color:#fff;text-align:center;transition:.25s}
.data-stat:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(45,50,107,.22)}
.data-stat .num{font-size:46px;font-weight:900;line-height:1.1;margin-bottom:8px}
.data-stat .num .suffix{font-size:26px}
.data-stat .lab{font-size:15px;font-weight:700;color:#c6c9dc}
.data-stat .desc{font-size:13px;color:#a7abc4;margin-top:10px;line-height:1.6}

/* ===== 核心业务 ===== */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.biz-card{background:var(--warm);border:1px solid var(--line);border-radius:18px;padding:30px 26px;transition:.25s;display:flex;flex-direction:column}
.biz-card:hover{transform:translateY(-5px);border-color:var(--indigo);box-shadow:0 18px 40px rgba(45,50,107,.12)}
.biz-ic{width:52px;height:52px;border-radius:14px;background:var(--indigo);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px}
.biz-card h3{font-size:18px;color:var(--indigo);margin-bottom:10px}
.biz-card p{font-size:13.5px;color:var(--muted);line-height:1.7;flex:1}
.biz-card ul{list-style:none;margin-top:16px;font-size:13px;color:var(--ink)}
.biz-card li{padding:5px 0 5px 18px;position:relative}
.biz-card li::before{content:"\203A";position:absolute;left:2px;color:var(--coral);font-weight:900}
.biz-tag{margin-top:16px;align-self:flex-start;font-size:11.5px;font-weight:800;color:var(--indigo);background:var(--pale-indigo);padding:4px 12px;border-radius:999px}

/* ===== 课程体系：金字塔 ===== */
.pyramid{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:50px}
.pyr-row{display:flex;width:100%;justify-content:center}
.pyr-box{color:#fff;border-radius:14px;padding:20px 28px;text-align:left;transition:.25s;cursor:default}
.pyr-box:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(45,50,107,.22)}
.pyr-box .lv{font-size:12px;opacity:.85;letter-spacing:1px;font-weight:700}
.pyr-box h3{font-size:19px;margin:3px 0 6px}
.pyr-box p{font-size:13px;opacity:.92;line-height:1.6}
.pyr-l4{width:52%;background:linear-gradient(135deg,var(--coral),var(--coral-deep))}
.pyr-l3{width:66%;background:var(--indigo)}
.pyr-l2{width:80%;background:#3a3f6e}
.pyr-l1{width:94%;background:var(--muted)}
.pyr-arrow{display:flex;align-items:center;gap:10px;margin-top:24px;color:var(--muted);font-size:14px;flex-wrap:wrap;justify-content:center}
.pyr-arrow b{color:var(--indigo)}
.pyr-arrow .a{color:var(--coral-deep);font-weight:800}

/* ===== 课程卡片 ===== */
.layer-band{display:flex;align-items:center;gap:16px;flex-wrap:wrap;border-left:6px solid var(--coral);background:#fff;border-radius:12px;padding:18px 24px;margin-bottom:24px;box-shadow:0 4px 14px rgba(45,50,107,.06)}
.layer-band .badge{background:var(--indigo);color:#fff;font-size:14px;font-weight:800;padding:7px 16px;border-radius:8px;white-space:nowrap}
.layer-band h3{font-size:20px;color:var(--indigo)}
.layer-band .note{color:var(--muted);font-size:13.5px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-bottom:50px}
.cards.last{margin-bottom:0}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(45,50,107,.14);border-color:var(--coral)}
.card .head{padding:18px 22px 14px;border-bottom:1px solid var(--line)}
.card .head h4{font-size:18px;color:var(--indigo)}
.card .head .meta{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.chip{font-size:11.5px;padding:3px 11px;border-radius:999px;background:var(--pale-indigo);color:var(--indigo);font-weight:600}
.chip.hot{background:var(--pale-coral);color:var(--coral-deep);font-weight:800}
.card .body{padding:16px 22px 20px;flex:1;display:flex;flex-direction:column;gap:10px}
.card .row{font-size:13.5px}
.card .row b{color:var(--indigo);display:block;font-size:12px;letter-spacing:1px;margin-bottom:2px}
.card .row span{color:var(--muted)}
.card .gain{margin-top:auto;background:var(--pale-coral);border-left:3px solid var(--coral);padding:9px 13px;border-radius:0 8px 8px 0;font-size:13px;color:var(--coral-deep);font-weight:600}

/* ===== 青少年表 ===== */
.table-wrap{overflow-x:auto;border-radius:14px;box-shadow:0 6px 20px rgba(45,50,107,.07)}
table.youth{width:100%;border-collapse:collapse;background:#fff;font-size:14px;min-width:640px}
table.youth th{background:var(--indigo);color:#fff;padding:14px 16px;text-align:left;font-size:13.5px;letter-spacing:1px;white-space:nowrap}
table.youth td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink)}
table.youth tr:last-child td{border-bottom:0}
table.youth tr:hover td{background:var(--pale-indigo)}
.lv-tag{display:inline-block;font-size:12px;font-weight:800;padding:4px 11px;border-radius:6px;white-space:nowrap}
.lv-t3{background:var(--pale-coral);color:var(--coral-deep)}
.lv-t2{background:rgba(45,50,107,.12);color:var(--indigo)}
.lv-t1{background:rgba(110,113,129,.16);color:var(--muted)}

/* ===== 核心优势 ===== */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 26px;transition:.25s}
.adv-item:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(45,50,107,.12)}
.adv-num{width:42px;height:42px;border-radius:10px;background:var(--indigo);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;margin-bottom:16px}
.adv-item:nth-child(2) .adv-num,.adv-item:nth-child(4) .adv-num{background:var(--coral)}
.adv-item h4{font-size:17px;color:var(--indigo);margin-bottom:9px}
.adv-item p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ===== 关于我们 ===== */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:46px;align-items:center}
.about-info{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0 30px}
.about-info .ai{background:var(--pale-indigo);border-radius:12px;padding:18px}
.about-info .ai .k{font-size:12px;color:var(--coral-deep);font-weight:800;letter-spacing:1px}
.about-info .ai .v{font-size:15px;color:var(--indigo);font-weight:700;margin-top:5px}
.about-copy p{font-size:15px;color:var(--muted);line-height:1.85}
.about-copy p+p{margin-top:16px}
.honor-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.honor{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;gap:14px;align-items:flex-start;transition:.25s}
.honor:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(45,50,107,.12)}
.honor .hi{font-size:24px}
.honor h4{font-size:15px;color:var(--indigo);margin-bottom:4px}
.honor p{font-size:12.5px;color:var(--muted);line-height:1.55}

/* ===== 口碑 ===== */
.ts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ts-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 28px;position:relative;transition:.25s}
.ts-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(45,50,107,.12)}
.ts-card .q{font-size:54px;line-height:1;color:var(--coral);opacity:.35;font-weight:900}
.ts-card .txt{font-size:14.5px;color:var(--ink);line-height:1.8;margin:6px 0 20px}
.ts-author{display:flex;align-items:center;gap:12px}
.ts-ava{width:42px;height:42px;border-radius:50%;background:var(--indigo);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;overflow:hidden}
.ts-ava img{width:100%;height:100%;object-fit:cover}
.ts-name{font-size:14px;font-weight:800;color:var(--indigo)}
.ts-role{font-size:12px;color:var(--muted)}

/* ===== 新闻 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s}
.news-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(45,50,107,.12)}
.news-img{height:150px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:700;letter-spacing:1px;background-size:cover;background-position:center}
.news-img.i1{background:linear-gradient(135deg,var(--indigo),#3a3f6e)}
.news-img.i2{background:linear-gradient(135deg,var(--coral),var(--coral-deep))}
.news-img.i3{background:linear-gradient(135deg,#4a5388,var(--indigo))}
.news-body{padding:20px 22px 24px}
.news-date{font-size:12px;color:var(--coral-deep);font-weight:800;letter-spacing:1px}
.news-body h4{font-size:16px;color:var(--indigo);margin:8px 0 8px}
.news-body p{font-size:13px;color:var(--muted);line-height:1.7}
.news-more{text-align:center;margin-top:36px}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-q{display:flex;align-items:center;gap:14px;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:700;color:var(--indigo)}
.faq-q .qn{width:28px;height:28px;border-radius:8px;background:var(--pale-coral);color:var(--coral-deep);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900;flex:0 0 auto}
.faq-q .qt{flex:1}
.faq-q .qa{font-size:20px;color:var(--muted);transition:.25s}
.faq-item.open .qa{transform:rotate(45deg);color:var(--coral)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:600px;padding:0 24px 22px}
.faq-a p{font-size:14px;color:var(--muted);line-height:1.85}

/* ===== 最终 CTA + 表单 ===== */
.cta-band{background:radial-gradient(circle at 85% 20%,rgba(255,107,91,.22),transparent 28%),linear-gradient(135deg,var(--indigo),var(--indigo-deep));color:#fff;border-radius:24px;padding:60px 56px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.cta-band h2{font-size:28px;font-weight:800;line-height:1.35}
.cta-band p{color:#c6c9dc;font-size:15px;margin-top:12px;max-width:560px;line-height:1.8}
.cta-form{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:28px}
.cta-form .fg{margin-bottom:16px}
.cta-form label{display:block;font-size:13px;font-weight:700;color:#e7e9f3;margin-bottom:6px}
.cta-form input,.cta-form textarea{width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.1);color:#fff;font-size:14px;outline:none;transition:.2s;font-family:inherit}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:#b9bdd6}
.cta-form input:focus,.cta-form textarea:focus{border-color:var(--coral);background:rgba(255,255,255,.14)}
.cta-form textarea{min-height:86px;resize:vertical}
.cta-form .submit{width:100%;padding:14px 24px;border-radius:999px;border:0;background:var(--coral);color:#fff;font-size:15px;font-weight:800;cursor:pointer;transition:.22s}
.cta-form .submit:hover{background:var(--coral-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,91,.32)}
.cta-form .submit[disabled]{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.cta-form .tip{font-size:12px;color:#b9bdd6;margin-top:12px;text-align:center}
.cta-form .form-msg{font-size:13px;margin-top:12px;text-align:center;font-weight:700;display:none}
.cta-form .form-msg.ok{display:block;color:#8ff0c4}
.cta-form .form-msg.err{display:block;color:#ffb3aa}
.sl-hp{position:absolute!important;left:-9999px!important}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.contact-card{background:var(--pale-coral);border-radius:20px;padding:34px;display:flex;flex-direction:column;gap:18px}
.contact-card .mgr{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--coral-deep)}
.contact-card h3{font-size:26px;color:var(--indigo);font-weight:900}
.contact-phone{font-size:30px;font-weight:900;color:var(--coral-deep);letter-spacing:1px}
.contact-card p{font-size:14px;color:var(--muted);line-height:1.7}
.contact-call{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;background:var(--coral);color:#fff;font-weight:700;padding:13px 26px;border-radius:999px;font-size:15px;transition:.22s}
.contact-call:hover{background:var(--coral-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,91,.32)}
.contact-info{font-size:15px;color:var(--ink);line-height:2}
.contact-info .ci{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px}
.contact-info .ci .ic{font-size:18px}
.contact-info b{color:var(--indigo)}

/* ===== Footer ===== */
footer{background:var(--indigo-deep);color:#fff;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.3fr;gap:34px}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand .logo b{color:var(--coral)}
.foot-brand p{font-size:13px;color:#b9bdd6;line-height:1.8}
.foot-col h4{font-size:14px;font-weight:800;margin-bottom:16px;color:#fff}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{font-size:13px;color:#c4c6d7;padding:6px 0}
.foot-col a{color:#c4c6d7;transition:.2s}
.foot-col a:hover{color:var(--coral)}
.foot-contact{font-size:13px;color:#c4c6d7;line-height:1.9}
.foot-contact .fc-phone{font-size:18px;font-weight:800;color:#fff}
.foot-contact a:hover{color:var(--coral)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;color:#9aa0bd}
.foot-bottom a{color:#9aa0bd}
.foot-bottom a:hover{color:var(--coral)}

/* ===== 浮动联系方式 ===== */
.float-contact{position:fixed;right:18px;bottom:24px;z-index:130;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.float-btn{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px rgba(30,34,56,.22);cursor:pointer;transition:.25s;position:relative;background:#fff;border:1px solid var(--line);font-size:22px}
.float-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 10px 26px rgba(30,34,56,.28)}
.float-btn.phone{background:var(--coral);color:#fff;border-color:var(--coral)}
.float-btn.phone:hover{background:var(--coral-deep)}
.float-btn.ai{background:var(--indigo);color:#fff;border-color:var(--indigo);font-size:20px}
.float-btn.ai:hover{background:var(--indigo-deep)}
.float-popup{position:absolute;right:64px;bottom:0;background:#fff;border-radius:14px;padding:14px;box-shadow:0 10px 30px rgba(30,34,56,.18);width:170px;opacity:0;visibility:hidden;transform:translateX(10px);transition:.25s;text-align:center}
.float-btn:hover .float-popup,.float-popup.open{opacity:1;visibility:visible;transform:translateX(0)}
.float-popup img{width:140px;height:140px;object-fit:contain;margin:0 auto 8px;border-radius:8px}
.float-popup .pp-title{font-size:13px;font-weight:800;color:var(--indigo);margin-bottom:4px}
.float-popup .pp-desc{font-size:11px;color:var(--muted);line-height:1.5}
.float-tip{position:absolute;right:64px;bottom:8px;background:var(--indigo-deep);color:#fff;padding:8px 12px;border-radius:8px;font-size:12px;white-space:nowrap;opacity:0;visibility:hidden;transform:translateX(10px);transition:.25s}
.float-btn:hover .float-tip{opacity:1;visibility:visible;transform:translateX(0)}
.float-tip::after{content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%);border-width:6px 0 6px 6px;border-style:solid;border-color:transparent transparent transparent var(--indigo-deep)}

/* AI 咨询窗口（Phase 4 接入 RAG 前的占位容器） */
.ai-chat-modal{display:none;position:fixed;inset:0;background:rgba(30,34,56,.55);z-index:200;align-items:center;justify-content:center;padding:20px}
.ai-chat-modal.open{display:flex}
.ai-chat-box{background:#fff;border-radius:20px;width:100%;max-width:420px;overflow:hidden;box-shadow:0 20px 50px rgba(30,34,56,.3)}
.ai-chat-head{background:linear-gradient(135deg,var(--indigo),var(--indigo-deep));color:#fff;padding:18px 22px;display:flex;justify-content:space-between;align-items:center}
.ai-chat-head h4{font-size:16px;font-weight:800}
.ai-chat-head .close{width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.15);color:#fff;border:0;cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center}
.ai-chat-body{padding:28px;text-align:center}
.ai-chat-body .ai-avatar{width:64px;height:64px;border-radius:50%;background:var(--pale-indigo);color:var(--indigo);display:flex;align-items:center;justify-content:center;font-size:28px;margin:0 auto 16px}
.ai-chat-body p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:22px}
.ai-chat-body .rag-note{font-size:12px;color:var(--muted);margin-bottom:20px}
.ai-chat-body .btn{width:100%;justify-content:center}
.sl-rag-form{margin-top:8px;text-align:left}
.sl-rag-form .fg{margin-bottom:12px}
.sl-rag-form textarea{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:14px;font-family:inherit;resize:vertical;min-height:80px;outline:none;box-sizing:border-box}
.sl-rag-form textarea:focus{border-color:var(--coral)}
.sl-rag-msg{font-size:13px;line-height:1.7;margin:10px 0;padding:10px 12px;border-radius:10px;text-align:left;word-break:break-word}
.sl-rag-msg.user{background:var(--pale-indigo);color:var(--indigo)}
.sl-rag-msg.bot{background:var(--pale-coral);color:var(--coral-deep)}
.ai-chat-body{max-height:72vh;overflow-y:auto}
#slRagRoot{min-height:0}

/* ===== 内页 / 归档 / 文章 ===== */
.page-hero{background:linear-gradient(135deg,var(--indigo),var(--indigo-deep));color:#fff;padding:64px 0 56px}
.page-hero .kicker{display:inline-block;color:var(--coral);font-size:13px;font-weight:800;letter-spacing:3px;margin-bottom:10px}
.page-hero h1{font-size:34px;font-weight:900;line-height:1.25}
.page-hero .lead{color:#c6c9dc;font-size:15px;margin-top:12px;max-width:760px}
.breadcrumb{font-size:13px;color:#9aa0bd;margin-bottom:14px}
.breadcrumb a{color:#c6c9dc}
.breadcrumb a:hover{color:var(--coral)}
.entry{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:18px;padding:44px 46px}
.entry-meta{font-size:13px;color:var(--muted);margin-bottom:22px;display:flex;gap:16px;flex-wrap:wrap}
.entry-content{font-size:15.5px;line-height:1.95;color:#33364a}
.entry-content h2{font-size:23px;color:var(--indigo);margin:34px 0 14px;font-weight:800}
.entry-content h3{font-size:19px;color:var(--indigo);margin:26px 0 12px;font-weight:800}
.entry-content p{margin-bottom:16px}
.entry-content ul,.entry-content ol{margin:0 0 18px 22px}
.entry-content li{margin-bottom:8px}
.entry-content img{border-radius:12px;margin:18px 0}
.entry-content blockquote{border-left:4px solid var(--coral);background:var(--pale-coral);padding:14px 20px;border-radius:0 10px 10px 0;color:var(--coral-deep);margin:20px 0}
.entry-content a{color:var(--coral-deep);text-decoration:underline}
.entry-content table{width:100%;border-collapse:collapse;margin:18px 0}
.entry-content th{background:var(--indigo);color:#fff;padding:11px 14px;text-align:left;font-size:14px}
.entry-content td{padding:11px 14px;border-bottom:1px solid var(--line);font-size:14px}
.entry-content code{background:var(--pale-indigo);color:var(--indigo);padding:2px 7px;border-radius:5px;font-size:14px}
.entry-content pre{background:var(--indigo-deep);color:#e7e9f3;padding:18px 20px;border-radius:12px;overflow-x:auto;margin:18px 0}
.entry-content pre code{background:none;color:inherit;padding:0}
.post-nav{max-width:860px;margin:26px auto 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px}
.post-nav a{color:var(--indigo);font-weight:700}
.post-nav a:hover{color:var(--coral-deep)}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.pagination .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border-radius:10px;background:#fff;border:1px solid var(--line);color:var(--indigo);font-weight:700;font-size:14px}
.pagination .page-numbers.current,.pagination .page-numbers:hover{background:var(--indigo);color:#fff;border-color:var(--indigo)}
.notfound{text-align:center;padding:90px 0}
.notfound .big{font-size:96px;font-weight:900;color:var(--pale-indigo);line-height:1}
.notfound h1{font-size:26px;color:var(--indigo);margin:8px 0 12px}
.notfound p{color:var(--muted);margin-bottom:26px}
.searchform{display:flex;gap:10px;max-width:460px;margin:0 auto}
.searchform input[type=search]{flex:1;padding:12px 16px;border-radius:999px;border:1px solid var(--line);font-size:14px;outline:none;font-family:inherit}
.searchform input[type=search]:focus{border-color:var(--coral)}
.searchform button{border:0;background:var(--indigo);color:#fff;padding:12px 26px;border-radius:999px;font-weight:700;cursor:pointer}
.searchform button:hover{background:var(--indigo-deep)}

/* ===== 滚动揭示 =====
 * 关键：默认内容【可见】。只有在 JS 可用（<html> 带 .js 类）时才应用
 * “初始隐藏→渐显”动画，避免 JS 未执行 / 失败时全站内容不可见。
 */
.js [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .6s ease, transform .6s ease}
.js [data-reveal].in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1!important;transform:none!important;transition:none}
  .js [data-reveal]{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* ===== 课程 CPT 归档网格 ===== */
.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.course-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;transition:.25s}
.course-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(45,50,107,.14);border-color:var(--coral)}
.cc-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.cc-level{font-size:12px;font-weight:800;color:var(--indigo);background:var(--pale-indigo);padding:4px 10px;border-radius:20px}
.cc-hot{font-size:12px;font-weight:800;color:#fff;background:var(--coral);padding:4px 10px;border-radius:20px}
.cc-title{font-size:19px;color:var(--indigo);margin:0}
.cc-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.cc-body{font-size:14px;color:#444;line-height:1.7}
.cc-gain{margin-top:auto;background:var(--pale-coral);border-left:3px solid var(--coral);padding:10px 14px;border-radius:0 8px 8px 0;font-size:13px;color:var(--coral-deep);font-weight:600}
.cc-link{color:var(--coral-deep);font-weight:700;font-size:14px;text-decoration:none}

/* ===== 文章列表（博客索引 / 搜索 / 通用归档） ===== */
.entry-list{display:flex;flex-direction:column;gap:24px}
.entry-list .entry{margin:0}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .biz-grid,.adv-grid,.insight-grid,.ts-grid,.news-grid,.data-stats{grid-template-columns:repeat(2,1fr)}
  .course-grid{grid-template-columns:repeat(2,1fr)}
  .val-grid{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr}
}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
@media(max-width:760px){
  .nav-desktop{display:none}
  .nav-toggle{display:flex}
  .nav-mobile.open{display:flex}
  .nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .hero h1{font-size:38px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:26px}
  .hero-slider{height:auto;min-height:600px}
  .mv-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .biz-grid,.adv-grid,.insight-grid,.ts-grid,.news-grid,.about-info,.honor-grid,.data-stats{grid-template-columns:1fr}
  .course-grid{grid-template-columns:1fr}
  .val-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:40px 28px}
  .pyr-l4,.pyr-l3,.pyr-l2,.pyr-l1{width:100%}
  section{padding:60px 0}
  .sec-head h2{font-size:24px}
  .entry{padding:28px 22px}
  .page-hero h1{font-size:26px}
  .float-contact{right:12px;bottom:16px;gap:10px}
  .float-btn{width:46px;height:46px;font-size:19px}
  .float-popup{right:56px;width:150px;padding:12px}
  .float-popup img{width:120px;height:120px}
}
@media(max-width:480px){
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-content{padding:64px 0 56px}
  .sec-head h2{font-size:21px}
  .sec-head{margin-bottom:30px}
  section{padding:46px 0}
  .entry{padding:22px 16px}
  .cta-band{padding:32px 20px}
  .mv-grid,.about-grid,.contact-grid,.val-grid,.biz-grid,.adv-grid,.insight-grid,.ts-grid,.news-grid,.honor-grid,.data-stats,.course-grid,.foot-grid,.about-info{grid-template-columns:1fr}
  .pyr-l4,.pyr-l3,.pyr-l2,.pyr-l1{width:100%}
  .float-contact{right:8px;bottom:12px;gap:8px}
  .float-btn{width:42px;height:42px;font-size:17px}
  .float-popup{right:50px;width:132px;padding:10px}
  .float-popup img{width:104px;height:104px}
  .page-hero h1{font-size:22px}
}