/* ============================================================
   品格赢 CharacterWin · 课程内页共享样式 V1
   主色：中国红 ｜ 家长线：松墨绿 ｜ 点缀：细金线（克制高级）
   底：纸感暖白 ｜ 语言：斜切 · 错落 · 悬浮 · 毛玻璃
   ============================================================ */

:root{
  --red:#E2021C; --red-deep:#B00116; --red-dark:#8A0111;
  --gold:#EFB120; --gold-deep:#C4880D; --gold-line:rgba(196,136,13,.55);
  /* 墨绿系（家长线 + 正文深色） */
  --green:#1E5C48; --green-mid:#2C6E54; --green-deep:#173F30;
  --green-text:#3D5A4E; --green-bg:#EAF2ED;

  --ink:#1F2A26;          /* 主文字：墨绿调深色（替代墨黑） */
  --ink-2:#3D5A4E;
  --muted:#7C857F;
  --faint:#A8A29A;
  --line:#E9E2D9;

  --paper:#FFFFFF; --paper-1:#FBF7F2; --paper-2:#F4EBE0;

  --sh-1:0 1px 3px rgba(23,63,48,.05),0 4px 12px rgba(23,63,48,.05);
  --sh-2:0 4px 12px rgba(23,63,48,.07),0 14px 34px rgba(23,63,48,.08);
  --sh-3:0 10px 26px rgba(23,63,48,.09),0 30px 64px rgba(23,63,48,.13);
  --sh-4:0 20px 48px rgba(23,63,48,.13),0 56px 110px rgba(23,63,48,.17);
  --sh-red:0 12px 30px rgba(226,2,28,.24),0 30px 64px rgba(226,2,28,.18);
  --sh-green:0 12px 30px rgba(30,92,72,.26),0 30px 64px rgba(30,92,72,.18);

  --r-s:12px; --r-m:18px; --r-l:26px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:clip;}
body{font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.78;-webkit-font-smoothing:antialiased;overflow-x:clip;position:relative;max-width:100%;}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px;}

/* ============ 导航（与首页同构） ============ */
.nav{position:sticky;top:0;z-index:300;background:rgba(255,255,255,.84);
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(233,226,217,.65);transition:box-shadow .35s,background .35s;}
.nav.scrolled{box-shadow:0 6px 30px rgba(23,63,48,.1);background:rgba(255,255,255,.95);}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:82px;}

.nav-menu{display:flex;gap:34px;align-items:center;}
.nav-menu a{font-size:15px;color:var(--ink-2);font-weight:500;position:relative;padding:6px 0;transition:color .25s;}
.nav-menu a:hover{color:var(--red);}
.nav-menu a:not(.nav-cta)::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--red),var(--gold));transition:width .32s;border-radius:2px;}
.nav-menu a:not(.nav-cta):hover::after{width:100%;}
.nav-menu a.active{color:var(--red);font-weight:700;}
.nav-menu a.active::after{width:100%;}
.nav-drop:hover>a,.nav-drop:focus-within>a{color:var(--red);}
.nav-cta{background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff !important;
  padding:12px 26px;border-radius:var(--r-s);font-size:15px;font-weight:600;
  box-shadow:0 6px 18px rgba(226,2,28,.26);transition:all .3s;}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(226,2,28,.4);}

/* ============ 页头（斜切色场，红/绿两版） ============ */
.page-hero{position:relative;color:#fff;padding:96px 0 150px;overflow:visible;}
.ph-bg{position:absolute;inset:0;overflow:hidden;pointer-events:none;}
.ph-bg .hero-glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;}
.page-hero.red{background:
  radial-gradient(ellipse 118% 88% at 82% 4%,#A20115 0%,transparent 56%),
  radial-gradient(ellipse 100% 78% at 6% 96%,#5A0009 0%,transparent 58%),
  radial-gradient(ellipse 90% 70% at 50% 50%,#C4011A 0%,transparent 70%),
  linear-gradient(158deg,#3A0208 0%,#20050A 46%,#1F2A26 100%);}
.page-hero.green{background:
  radial-gradient(ellipse 118% 88% at 82% 4%,#2C6E54 0%,transparent 56%),
  radial-gradient(ellipse 100% 78% at 6% 96%,#0E2A20 0%,transparent 58%),
  radial-gradient(ellipse 90% 70% at 50% 50%,#1E5C48 0%,transparent 70%),
  linear-gradient(158deg,#123326 0%,#173F30 46%,#1F2A26 100%);}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;}
.red .g1{width:720px;height:720px;right:-200px;top:-240px;background:radial-gradient(circle,rgba(226,2,28,.5),transparent 68%);animation:float1 16s ease-in-out infinite;}
.red .g2{width:560px;height:560px;left:-180px;bottom:-160px;background:radial-gradient(circle,rgba(239,177,32,.18),transparent 70%);animation:float2 20s ease-in-out infinite;}
.green .g1{width:720px;height:720px;right:-200px;top:-240px;background:radial-gradient(circle,rgba(44,110,84,.55),transparent 68%);animation:float1 16s ease-in-out infinite;}
.green .g2{width:560px;height:560px;left:-180px;bottom:-160px;background:radial-gradient(circle,rgba(239,177,32,.16),transparent 70%);animation:float2 20s ease-in-out infinite;}
@keyframes float1{0%,100%{transform:translate(0,0) scale(1);}50%{transform:translate(-28px,26px) scale(1.08);}}
@keyframes float2{0%,100%{transform:translate(0,0) scale(1);}50%{transform:translate(34px,-22px) scale(1.06);}}
.hero-grid{position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:radial-gradient(rgba(255,255,255,.085) 1px,transparent 1px);
  background-size:36px 36px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 82%);}
.hero-slant{position:absolute;left:-12%;right:-12%;bottom:-1px;height:110px;z-index:2;pointer-events:none;
  background:var(--paper);border-radius:50% 50% 0 0 / 100% 100% 0 0;}
.page-hero .wrap{position:relative;z-index:5;}
.crumb{display:inline-flex;gap:10px;font-size:13.5px;letter-spacing:.22em;color:var(--gold);
  font-weight:600;padding:8px 20px 8px 17px;background:rgba(239,177,32,.1);
  border:1px solid rgba(239,177,32,.28);border-radius:100px;backdrop-filter:blur(8px);margin-bottom:28px;}
.crumb a{color:var(--gold);}
.page-hero h1{font-size:52px;line-height:1.32;font-weight:800;letter-spacing:.004em;margin-bottom:24px;
  max-width:860px;text-shadow:0 6px 34px rgba(0,0,0,.4);}
.page-hero h1 em{font-style:normal;color:var(--gold);}
.page-hero .lead{font-size:17px;line-height:2;color:rgba(255,255,255,.84);max-width:780px;}

/* ============ 通用分区 ============ */
.section{padding:96px 0;position:relative;}
.section.tint{background:var(--paper-1);}
.sec-head{max-width:820px;margin-bottom:56px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.26em;
  color:var(--red);font-weight:700;margin-bottom:18px;}
.sec-tag::before{content:'';width:26px;height:1.5px;background:linear-gradient(90deg,var(--red),var(--gold));}
.sec-head.green-mode .sec-tag{color:var(--green);}
.sec-head.green-mode .sec-tag::before{background:linear-gradient(90deg,var(--green),var(--gold));}
.sec-title{font-size:38px;line-height:1.4;font-weight:800;letter-spacing:.01em;}
.sec-title em{font-style:normal;color:var(--red);position:relative;}
.sec-head.green-mode .sec-title em{color:var(--green);}
.sec-desc{font-size:16px;color:var(--ink-2);margin-top:18px;line-height:2;}
.gold-rule{width:56px;height:2px;background:linear-gradient(90deg,var(--gold),transparent);margin-top:22px;border-radius:2px;}
.sec-head.center .gold-rule{margin-left:auto;margin-right:auto;background:linear-gradient(90deg,transparent,var(--gold),transparent);}

/* ============ 卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.card-grid.g2{grid-template-columns:repeat(2,1fr);}
.course-card{background:var(--paper);border-radius:var(--r-m);padding:38px 34px;position:relative;
  border:1px solid rgba(233,226,217,.9);box-shadow:var(--sh-2);transition:transform .4s,box-shadow .4s;overflow:hidden;}
.course-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--red),var(--gold));opacity:.9;}
.course-card.green::before{background:linear-gradient(180deg,var(--green),var(--gold));}
.course-card.gold::before{background:linear-gradient(180deg,var(--gold),var(--gold-deep));}
.course-card:hover{transform:translateY(-8px);box-shadow:var(--sh-3);}
.cc-age{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  padding:5px 14px;border-radius:100px;margin-bottom:16px;
  background:rgba(226,2,28,.07);color:var(--red);border:1px solid rgba(226,2,28,.18);}
.course-card.green .cc-age{background:rgba(30,92,72,.08);color:var(--green);border-color:rgba(30,92,72,.2);}
.course-card.gold .cc-age{background:rgba(196,136,13,.08);color:var(--gold-deep);border-color:rgba(196,136,13,.22);}
.course-card h3{font-size:22px;font-weight:800;margin-bottom:6px;}
.cc-sub{font-size:13px;color:var(--muted);margin-bottom:16px;letter-spacing:.04em;}
.cc-desc{font-size:14.5px;color:var(--ink-2);line-height:1.95;margin-bottom:18px;}
.cc-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);padding-top:16px;}
.cc-meta b{color:var(--ink);font-weight:600;}
.cc-link{display:inline-flex;align-items:center;gap:7px;margin-top:20px;font-size:14px;font-weight:600;color:var(--red);}
.course-card.green .cc-link{color:var(--green);}
.cc-link:hover{gap:12px;transition:gap .25s;}


/* ============ 模型图 ============ */
.model-band{background:var(--paper-1);border:1px solid var(--line);border-radius:var(--r-l);
  padding:52px 48px;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;box-shadow:var(--sh-1);}
.model-band h3{font-size:24px;font-weight:800;margin-bottom:14px;}
.model-band p{font-size:15px;color:var(--ink-2);line-height:2;}
.model-legend{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13.5px;color:var(--ink-2);}
.model-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:7px;vertical-align:-1px;}
.svg-frame{filter:drop-shadow(0 16px 34px rgba(23,63,48,.12));}

/* ============ 双线大分区（综合页） ============ */
.line-block{border-radius:var(--r-l);padding:64px 56px;position:relative;overflow:hidden;box-shadow:var(--sh-3);}
.line-block.red{background:linear-gradient(160deg,#2A0206 0%,#5A0009 55%,#3A0208 100%);color:#fff;}
.line-block.green{background:linear-gradient(160deg,#123326 0%,#173F30 55%,#1E5C48 100%);color:#fff;}
.line-block::after{content:'';position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(239,177,32,.25);pointer-events:none;}
.line-block .lb-tag{display:inline-flex;font-size:12.5px;letter-spacing:.3em;font-weight:700;
  color:var(--gold);border:1px solid rgba(239,177,32,.35);border-radius:100px;padding:7px 18px;margin-bottom:20px;}
.line-block h2{font-size:36px;font-weight:800;margin-bottom:14px;}
.line-block .lb-desc{font-size:15.5px;line-height:2;color:rgba(255,255,255,.82);max-width:720px;margin-bottom:36px;}
.lb-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.lb-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-m);padding:26px 28px;backdrop-filter:blur(10px);transition:background .3s,transform .3s;}
.lb-card:hover{background:rgba(255,255,255,.13);transform:translateY(-4px);}
.lb-card h4{font-size:18px;font-weight:700;margin-bottom:6px;}
.lb-card .lbc-meta{font-size:12.5px;color:rgba(255,255,255,.6);margin-bottom:10px;letter-spacing:.05em;}
.lb-card p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.78);}
.lb-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:36px;flex-wrap:wrap;}
.lb-more{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.3);color:#fff;padding:14px 30px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;transition:all .3s;backdrop-filter:blur(8px);}
.lb-more:hover{background:rgba(255,255,255,.2);transform:translateY(-3px);}
.lb-quote{font-size:13.5px;color:rgba(255,255,255,.62);border-left:2px solid var(--gold);padding-left:14px;line-height:1.9;max-width:420px;}

/* ============ 媒体背书条 ============ */
.media-strip{background:var(--paper-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0;}
.media-strip .wrap{display:flex;align-items:center;gap:14px 34px;flex-wrap:wrap;justify-content:center;}
.media-strip span{font-size:13.5px;color:var(--muted);letter-spacing:.06em;}
.media-strip b{color:var(--ink);font-weight:600;}
.media-strip .tag{color:var(--gold-deep);font-weight:700;font-size:12px;letter-spacing:.3em;}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:16px;}
details{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-s);
  padding:22px 28px;box-shadow:var(--sh-1);transition:box-shadow .3s;}
details[open]{box-shadow:var(--sh-2);}
summary{cursor:pointer;font-size:16.5px;font-weight:700;color:var(--ink);list-style:none;position:relative;padding-right:36px;}
summary::-webkit-details-marker{display:none;}
summary::after{content:'+';position:absolute;right:2px;top:-2px;font-size:24px;font-weight:400;color:var(--gold-deep);transition:transform .3s;}
details[open] summary::after{transform:rotate(45deg);}
details p{margin-top:14px;font-size:15px;color:var(--ink-2);line-height:2;border-top:1px dashed var(--line);padding-top:14px;}

/* ============ CTA ============ */
.cta-band{position:relative;background:linear-gradient(160deg,#B00116,#E2021C 55%,#8A0111);
  color:#fff;padding:88px 0;overflow:hidden;}
.cta-band::before{content:'';position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);background-size:34px 34px;}
.cta-band.green{background:linear-gradient(160deg,#123326,#1E5C48 55%,#173F30);}
.cta-in{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;}
.cta-in h2{font-size:34px;font-weight:800;margin-bottom:16px;}
.cta-in p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:36px;}
.btn{display:inline-flex;align-items:center;gap:9px;padding:16px 36px;border-radius:var(--r-s);
  font-size:16px;font-weight:600;transition:all .3s;cursor:pointer;border:none;font-family:inherit;}
.btn-light{background:#fff;color:var(--red);box-shadow:0 12px 34px rgba(0,0,0,.22);}
.btn-light:hover{transform:translateY(-4px);box-shadow:0 20px 48px rgba(0,0,0,.3);}
.cta-band.green .btn-light{color:var(--green);}
.btn-ghost2{background:transparent;border:1.5px solid rgba(255,255,255,.5);color:#fff;margin-left:14px;}
.btn-ghost2:hover{border-color:#fff;background:rgba(255,255,255,.1);}

/* ============ 页脚 ============ */
.footer{background:#17211D;color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.3fr;gap:48px;padding-bottom:48px;}
.footer-logo{width:32%;max-width:134px;height:auto;margin-bottom:20px;background:#fff;padding:10px 12px;border-radius:14px;box-shadow:0 6px 20px rgba(0,0,0,.18);}
.footer-about{line-height:2;max-width:400px;}
.footer-slogan{margin-top:16px;color:var(--gold);letter-spacing:.3em;font-size:13px;}
.footer h5{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.1em;}
.footer ul{list-style:none;display:grid;gap:10px;}
.footer a:hover{color:var(--gold);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.45);}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .card-grid,.card-grid.g2{grid-template-columns:repeat(2,1fr);}
  .model-band{grid-template-columns:1fr;}
  .nav-menu{gap:20px;}
}
@media(max-width:760px){
  .nav-menu a:not(.nav-cta){display:none;}
  .page-hero h1{font-size:34px;}
  .sec-title{font-size:28px;}
  .section{padding:64px 0;}
  .card-grid,.card-grid.g2{grid-template-columns:1fr;}
  .lb-cards{grid-template-columns:1fr;}
  .line-block{padding:44px 28px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .page-hero{padding:72px 0 130px;}
}

/* ===== 品牌文字标导航（Logo 强化） ===== */
.nav-logo{display:flex;align-items:center;gap:13px;}
.nav-logo img{height:64px;width:auto;}
.nav-wordmark{display:flex;flex-direction:column;line-height:1.2;}
.nav-wordmark b{font-family:"Kaiti SC","STKaiti","KaiTi","SimKai",serif;
  font-size:28px;font-weight:800;color:var(--red);letter-spacing:.16em;}
.nav-wordmark small{font-size:10px;letter-spacing:.26em;color:var(--gold-deep);
  font-weight:700;margin-top:4px;white-space:nowrap;}
@media(max-width:760px){.nav-wordmark small{display:none;}.nav-wordmark b{font-size:24px;}}

/* ===== 弧线装饰徽章 ===== */
.arc-badge{position:absolute;left:50%;bottom:-2px;transform:translate(-50%,50%);z-index:6;
  width:132px;height:132px;border-radius:50%;background:#fff;
  border:3px solid rgba(196,136,13,.6);box-shadow:0 18px 46px rgba(23,63,48,.2);
  display:flex;align-items:center;justify-content:center;}
.arc-badge img{width:76%;height:auto;}
@media(max-width:760px){.arc-badge{width:96px;height:96px;}}

.lb-more-red{display:inline-block;background:var(--red);color:#fff;font-weight:700;padding:10px 24px;border-radius:100px;margin-bottom:10px;box-shadow:0 8px 22px rgba(226,2,28,.26);}

/* ===== 导航下拉菜单（课程体系） ===== */
.nav-drop{position:relative;}
.nav-drop>.drop-menu{position:absolute;top:100%;left:50%;transform:translate(-50%,10px);
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-3);
  padding:10px;min-width:224px;opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;
  z-index:500;}
.nav-drop:hover>.drop-menu,.nav-drop:focus-within>.drop-menu{opacity:1;visibility:visible;transform:translate(-50%,2px);}
.drop-menu a{display:block !important;padding:11px 18px !important;border-radius:10px;
  font-size:14.5px !important;color:var(--ink-2) !important;white-space:nowrap;font-weight:500 !important;}
.drop-menu a::after{display:none !important;}
.drop-menu a:hover{background:var(--paper-1);color:var(--red) !important;}
.drop-menu a+.a-gap{margin-top:6px;}
@media(max-width:760px){.nav-drop>.drop-menu{display:none;}}

/* ===== 页脚二维码条 ===== */
.footer-qr{display:flex;gap:30px;flex-wrap:wrap;margin:-24px 0 48px;}
.footer-qr .qr-item{text-align:center;}
.footer-qr img{width:104px;height:104px;border-radius:12px;border:4px solid #fff;box-shadow:0 6px 18px rgba(0,0,0,.28);display:block;background:#fff;}
.footer-qr .qr-name{color:rgba(255,255,255,.72);font-size:12px;margin-top:9px;letter-spacing:.02em;}
@media(max-width:820px){.footer-qr{gap:18px;}.footer-qr img{width:88px;height:88px;}}

/* ===== 关于我们 · 二维码网格 ===== */
.qr-grid{margin-top:36px;text-align:left;}
.qr-grid-head{text-align:center;margin-bottom:22px;}
.qr-grid-title{font-size:19px;margin:8px 0 6px;}
.qr-grid-desc{font-size:13px;color:#8E8E99;}
.qr-grid-row{display:flex;gap:14px;flex-wrap:nowrap;justify-content:center;}
.qr-card{flex:1 1 0;min-width:0;max-width:158px;background:#fff;border:1px solid #E6E3DD;border-radius:14px;padding:12px 8px;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.05);}
.qr-card img{width:100%;max-width:104px;aspect-ratio:1/1;height:auto;border-radius:10px;display:block;margin:0 auto;}
.qr-card figcaption{margin-top:8px;}
.qr-card b{display:block;font-size:12.5px;white-space:nowrap;}
.qr-card span{display:block;font-size:10.5px;color:#8E8E99;margin-top:3px;line-height:1.45;}
@media(max-width:820px){.qr-grid-row{gap:14px;}.qr-card{width:calc(50% - 7px);}}

/* ===== 体系一张图 · 课程名 chips ===== */
.map-chip{display:inline-block;margin:0 6px 6px 0;padding:6px 13px;border:1px solid var(--line);border-radius:999px;background:var(--paper-1);font-size:13.5px;color:var(--ink);text-decoration:none;transition:border-color .2s,background .2s;}
a.map-chip:hover{border-color:var(--red);background:#fff;color:var(--red);}
.map-chip-gold{border-color:var(--gold-line);background:#FDF6E7;color:var(--gold-deep);font-weight:600;}
a.map-chip-gold:hover{border-color:var(--gold-deep);background:#fff;color:var(--gold-deep);}