/* ChangbaiMountain.com V17 Clean Master — consolidated production stylesheet */
:root{--ink:#14211d;--deep:#0b1915;--forest:#173b30;--forest2:#245848;--sage:#dfe9e2;--paper:#f6f4ef;--white:#fff;--muted:#69746f;--line:#d9dfdb;--sand:#d6c7a7;--max:1240px;--shadow:0 18px 55px rgba(11,25,21,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.shell{width:min(var(--max),calc(100% - 48px));margin:auto}
.announcement{background:#08130f;color:#c8d2cd;font-size:12px;letter-spacing:.05em}.announcement .shell{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}.announcement a{color:white;margin-left:22px}.announcement a:hover{opacity:.75}
.nav{position:sticky;top:0;z-index:100;background:rgba(246,244,239,.93);backdrop-filter:blur(16px);border-bottom:1px solid rgba(20,33,29,.08)}.nav-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:inline-flex;align-items:center;gap:12px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:20px;font-weight:800;letter-spacing:-.045em}.brand-light{font-weight:500}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--deep);color:white;font-size:11px;letter-spacing:.08em}.navlinks{display:flex;align-items:center;gap:30px;font-size:14px;font-weight:600}.navlinks>a:not(.nav-cta){padding:27px 0}.navlinks>a:hover{opacity:.58}.nav-cta{background:var(--deep);color:#fff;padding:12px 17px;border-radius:999px}.menu-toggle{display:none;background:none;border:0;font-size:22px}
.hero{position:relative;min-height:740px;display:flex;align-items:flex-end;color:white;overflow:hidden}.hero-photo{background-image:linear-gradient(110deg,rgba(5,17,13,.2),rgba(5,17,13,.05)),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg');background-size:cover;background-position:center 42%}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,17,13,.72) 0%,rgba(5,17,13,.36) 45%,rgba(5,17,13,.06) 80%),linear-gradient(0deg,rgba(5,17,13,.6),transparent 44%)}.hero-content{position:relative;z-index:2;padding:120px 0 52px}.hero-kicker{font-size:12px;font-weight:700;letter-spacing:.18em;display:flex;align-items:center;gap:10px;margin-bottom:18px}.dot{width:7px;height:7px;border-radius:50%;background:#b9d9c9}.hero h1{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:clamp(54px,8vw,104px);letter-spacing:-.065em;line-height:.92;margin:0;max-width:930px;font-weight:700}.hero-lede{font-size:19px;max-width:660px;color:#e5ebe8;margin:28px 0 30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:14px 20px;border-radius:999px;font-size:14px;font-weight:700;transition:.2s ease;border:1px solid transparent}.button:hover{transform:translateY(-1px)}.button-primary{background:white;color:var(--deep)}.button-glass{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.38);color:white;backdrop-filter:blur(6px)}.hero-facts{margin-top:68px;padding-top:22px;border-top:1px solid rgba(255,255,255,.28);display:grid;grid-template-columns:repeat(3,1fr);max-width:820px}.hero-facts div{display:flex;flex-direction:column;padding-right:30px}.hero-facts strong{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:18px}.hero-facts span{font-size:12px;color:#c8d2cd;margin-top:4px}
.planner-band{background:white;border-bottom:1px solid var(--line)}.planner-grid{display:grid;grid-template-columns:repeat(4,1fr)}.planner-item{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:26px 24px;border-right:1px solid var(--line);transition:.18s ease}.planner-item:first-child{border-left:1px solid var(--line)}.planner-item:hover{background:#f1f5f2}.planner-no{font-size:11px;color:#8d9892}.planner-item small{font-size:10px;letter-spacing:.13em;color:#76817c;display:block;margin-bottom:2px}.planner-item strong{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:14px}.arrow{font-size:16px}
.intro{padding:105px 0 112px}.intro-grid{display:grid;grid-template-columns:1.05fr .75fr;gap:110px;align-items:end;margin-bottom:52px}.section-label{font-size:11px;letter-spacing:.16em;font-weight:700;color:#64746c;margin-bottom:14px}.section-label.light{color:#a9bbb2}.intro h2,.section-head h2,.tianchi-copy h2,.language-banner h2,.about-grid h2,.contact-premium h2{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:clamp(38px,5vw,64px);letter-spacing:-.055em;line-height:1.02;margin:0}.intro-copy{font-size:17px;color:#596660}.text-link{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:14px;margin-top:10px}.text-link:hover{gap:15px}
.slope-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:18px}.slope-card{background:white;border-radius:4px;overflow:hidden;box-shadow:0 1px 0 rgba(20,33,29,.08);transition:.25s ease}.slope-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.slope-visual{height:340px;background-size:cover;background-position:center}.slope-north .slope-visual{height:430px;background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.slope-west .slope-visual{background-image:url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg')}.slope-south .slope-visual{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.slope-content{padding:26px 26px 29px}.card-meta{font-size:10px;letter-spacing:.12em;color:#78847e;margin-bottom:10px}.slope-content h3{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:29px;letter-spacing:-.04em;margin:0 0 8px}.slope-content p{color:var(--muted);font-size:14px;min-height:68px}.slope-content a{font-size:13px;font-weight:700}
.tianchi-feature{background:var(--deep);color:white;padding:0}.tianchi-grid{display:grid;grid-template-columns:1.05fr .95fr;min-height:720px}.tianchi-photo{min-height:720px;margin-left:calc((100vw - min(var(--max),calc(100% - 48px)))/-2);background-image:linear-gradient(rgba(8,19,15,.05),rgba(8,19,15,.14)),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg');background-size:cover;background-position:center}.tianchi-copy{display:flex;flex-direction:column;justify-content:center;padding:75px 0 75px 76px}.tianchi-copy p{color:#b8c6c0;font-size:17px;max-width:520px}.mini-stats{display:grid;gap:0;margin:28px 0 34px;border-top:1px solid rgba(255,255,255,.16)}.mini-stats>div{display:grid;grid-template-columns:44px 1fr;gap:2px 12px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.16)}.mini-stats span{grid-row:1/3;font-size:11px;color:#7d9489;padding-top:5px}.mini-stats strong{font-size:14px}.mini-stats small{color:#8fa198}.button-light{background:#f0f3f1;color:var(--deep);width:max-content}
.seasons{padding:110px 0}.section-head{margin-bottom:42px}.split-head{display:grid;grid-template-columns:1.1fr .7fr;gap:100px;align-items:end}.split-head p{color:var(--muted);font-size:16px;margin:0}.season-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.season-card{min-height:390px;color:white;padding:24px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;background-size:cover;background-position:center}.season-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,17,13,.68),rgba(5,17,13,.05) 62%)}.season-card>*{position:relative;z-index:1}.season-card span{font-size:10px;letter-spacing:.14em}.season-card strong{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:35px;line-height:1;margin:7px 0 9px}.season-card em{font-size:12px;font-style:normal;color:#e4ebe7}.season-card:hover{filter:saturate(1.1)}.summer{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.autumn{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.winter{background-image:url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg')}.spring{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}
.guides-section{background:#eceeea;padding:105px 0}.guide-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:26px}.featured-guide{background:white;display:grid;grid-template-columns:.9fr 1fr;min-height:470px}.featured-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg');background-size:cover;background-position:center}.featured-body{padding:42px;display:flex;flex-direction:column;justify-content:center}.tag{font-size:10px;letter-spacing:.14em;color:#738078;font-weight:700}.featured-body h3{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:37px;letter-spacing:-.045em;line-height:1.07;margin:12px 0}.featured-body p{font-size:14px;color:var(--muted)}.guide-list{background:white;padding:0 26px}.guide-list a{display:grid;grid-template-columns:80px 1fr auto;grid-template-rows:auto auto;column-gap:15px;padding:22px 0;border-bottom:1px solid var(--line)}.guide-list a:last-child{border-bottom:0}.guide-list span{grid-row:1/3;font-size:9px;letter-spacing:.11em;color:#7a8580;padding-top:5px}.guide-list strong{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:15px}.guide-list em{font-size:12px;color:#7a8580;font-style:normal}.guide-list b{grid-row:1/3;grid-column:3;align-self:center;font-weight:400}.center-link{text-align:center;margin-top:32px}.button-outline{border-color:#aab4ae;color:var(--deep)}
.language-banner{background:#23483c;color:white;padding:72px 0}.language-grid{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}.language-banner p{color:#bdd0c6;max-width:680px}.about-strip{padding:90px 0;background:#f7f5f0}.about-grid{display:grid;grid-template-columns:.8fr 1fr;gap:120px;align-items:start}.about-grid p{font-size:18px;color:#5f6b65;margin:0;max-width:720px}
.contact-section{padding:100px 0}.contact-premium{display:grid;grid-template-columns:.85fr 1fr;gap:100px;align-items:start}.contact-premium p{color:var(--muted);max-width:500px}.contact-premium form{background:white;padding:34px;box-shadow:0 1px 0 rgba(20,33,29,.1)}.contact-premium label{display:flex;flex-direction:column;gap:7px;font-size:11px;letter-spacing:.08em;font-weight:700;margin-bottom:18px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-premium input,.contact-premium textarea{width:100%;border:0;border-bottom:1px solid #cbd3cf;background:transparent;padding:11px 2px;font:inherit;outline:none}.contact-premium input:focus,.contact-premium textarea:focus{border-color:var(--deep)}.contact-premium .button-primary{background:var(--deep);color:white;border:0;cursor:pointer}.hp{position:absolute;left:-9999px}
.footer{background:#08130f;color:#b4c0ba;padding:70px 0 30px}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:55px}.footer-brand{color:white}.footer-grid p{font-size:13px;max-width:280px}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:10px;font-size:13px}.footer-grid strong{color:white;margin-bottom:7px}.footer-grid a:hover{color:white}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:55px;padding-top:22px;display:flex;justify-content:space-between;font-size:11px}
@media(max-width:980px){.navlinks{gap:18px}.planner-grid{grid-template-columns:1fr 1fr}.planner-item:nth-child(3){border-left:1px solid var(--line)}.intro-grid,.split-head,.about-grid,.contact-premium{grid-template-columns:1fr;gap:32px}.slope-grid{grid-template-columns:1fr 1fr}.slope-card:first-child{grid-column:1/-1}.slope-north .slope-visual{height:380px}.tianchi-grid{grid-template-columns:1fr}.tianchi-photo{margin-left:0;min-height:520px}.tianchi-copy{padding:64px 0}.season-grid{grid-template-columns:1fr 1fr}.guide-layout{grid-template-columns:1fr}.featured-guide{min-height:400px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{display:none}}
@media(max-width:720px){.shell{width:min(var(--max),calc(100% - 30px))}.announcement .shell{justify-content:center}.announcement-links a:first-child{display:none}.nav-inner{min-height:68px}.menu-toggle{display:block}.navlinks{position:absolute;left:0;right:0;top:68px;background:var(--paper);padding:18px 22px 25px;display:none;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line)}.navlinks.open{display:flex}.navlinks>a:not(.nav-cta){padding:4px 0}.hero{min-height:690px}.hero-content{padding:90px 0 35px}.hero h1{font-size:52px}.hero-lede{font-size:16px}.hero-facts{grid-template-columns:1fr;gap:10px}.hero-facts div{border-bottom:1px solid rgba(255,255,255,.13);padding:0 0 10px}.planner-grid{grid-template-columns:1fr}.planner-item,.planner-item:nth-child(3){border-left:1px solid var(--line)}.intro{padding:72px 0}.slope-grid{grid-template-columns:1fr}.slope-card:first-child{grid-column:auto}.slope-visual,.slope-north .slope-visual{height:300px}.tianchi-photo{min-height:390px}.season-grid{grid-template-columns:1fr 1fr;gap:9px}.season-card{min-height:280px;padding:18px}.season-card strong{font-size:27px}.featured-guide{grid-template-columns:1fr}.featured-image{min-height:290px}.featured-body{padding:28px}.guide-list{padding:0 18px}.guide-list a{grid-template-columns:1fr auto}.guide-list span{grid-row:auto;grid-column:1;font-size:9px}.guide-list strong{grid-column:1}.guide-list em{grid-column:1}.guide-list b{grid-row:1/4;grid-column:2}.language-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:8px}.contact-premium form{padding:24px}}

/* Deployment-safe fallbacks */
.hero-photo,.slope-visual,.tianchi-photo,.season-card,.featured-image{background-color:#173b30;background-repeat:no-repeat}

/* Blog + guide pages */
.blog-hero{background:var(--deep);color:#fff;padding:92px 0 72px}.blog-hero .section-label{color:#9fb5aa}.blog-hero h1{font-size:clamp(46px,7vw,82px);line-height:.98;letter-spacing:-.06em;margin:0;max-width:900px}.blog-hero p{max-width:720px;color:#b8c6c0;font-size:17px;margin:22px 0 0}.blog-shell{padding:72px 0 100px}.editorial-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.editorial-card{background:#fff;padding:30px;min-height:190px;border:1px solid rgba(20,33,29,.06);display:flex;flex-direction:column;justify-content:space-between;transition:.2s}.editorial-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.editorial-card .num{font-size:10px;letter-spacing:.12em;color:#849089}.editorial-card h2{font-size:25px;line-height:1.15;letter-spacing:-.035em;margin:26px 0 8px}.editorial-card p{font-size:13px;color:var(--muted);margin:0}.editorial-card.soon{opacity:.68}.editorial-card.soon:hover{transform:none;box-shadow:none}.status{font-size:10px;letter-spacing:.1em;color:#6f7d76;margin-top:18px}.article-hero{background:#e7ece8;padding:72px 0 58px;border-bottom:1px solid var(--line)}.article-hero .eyebrow{font-size:10px;font-weight:700;letter-spacing:.14em;color:#65756d}.article-hero h1{font-size:clamp(42px,6vw,72px);line-height:1;letter-spacing:-.055em;max-width:950px;margin:14px 0 18px}.article-hero .dek{font-size:18px;color:#596660;max-width:760px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:76px;padding:70px 0 110px;align-items:start}.article-body{font-size:17px}.article-body h2{font-size:32px;letter-spacing:-.04em;line-height:1.15;margin:54px 0 16px}.article-body h3{font-size:21px;letter-spacing:-.025em;margin:34px 0 10px}.article-body p{color:#3f4c46}.article-body a{text-decoration:underline;text-underline-offset:3px}.quick-answer{background:#fff;border-left:4px solid var(--forest2);padding:24px 26px;margin:0 0 38px;box-shadow:0 1px 0 rgba(20,33,29,.06)}.article-note{background:#eceeea;padding:20px 22px;font-size:14px;color:#5d6963;margin-top:48px}.article-side{position:sticky;top:112px}.side-card{border-top:1px solid #aeb8b2;padding-top:18px}.side-card strong{font-size:11px;letter-spacing:.12em}.side-card a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}.crumbs{font-size:12px;color:#708078;margin-bottom:22px}.back-row{margin-top:44px}.back-row a{font-weight:700;text-decoration:none}.blog-intro{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:34px}.blog-intro h2{font-size:36px;letter-spacing:-.045em;margin:0}.blog-intro p{max-width:540px;color:var(--muted);margin:0}.available-badge{display:inline-flex;background:var(--forest);color:#fff;border-radius:999px;padding:6px 10px;font-size:9px;letter-spacing:.09em}
@media(max-width:900px){.article-layout{grid-template-columns:1fr;gap:35px}.article-side{position:static}.editorial-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.blog-hero{padding:64px 0 52px}.blog-shell{padding:50px 0 72px}.editorial-grid{grid-template-columns:1fr}.blog-intro{display:block}.blog-intro p{margin-top:12px}.article-hero{padding:50px 0 40px}.article-layout{padding:48px 0 72px}.article-body{font-size:16px}}

/* 2026-08-29 visual consistency + anchor fixes */
html{scroll-padding-top:118px}
section[id],div[id],header[id],main[id]{scroll-margin-top:118px}
.navlinks a:focus{outline:none;box-shadow:none;text-decoration:none}
.navlinks a:focus-visible{outline:2px solid rgba(36,88,72,.28);outline-offset:5px;border-radius:6px}
#plan:target,#explore:target,#seasons:target{outline:none;box-shadow:none}

/* Keep editorial pages in the same Changbai visual system as the homepage */
.blog-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 82% 18%,rgba(104,151,130,.22),transparent 30%),
    radial-gradient(circle at 16% 82%,rgba(214,199,167,.10),transparent 28%),
    linear-gradient(135deg,#08130f 0%,#10261f 58%,#173b30 100%);
  color:#fff;padding:104px 0 82px;border-bottom:1px solid rgba(255,255,255,.08)
}
.blog-hero:after{content:"";position:absolute;right:-90px;bottom:-180px;width:520px;height:520px;border:1px solid rgba(255,255,255,.08);border-radius:50%;box-shadow:0 0 0 70px rgba(255,255,255,.018),0 0 0 140px rgba(255,255,255,.012);pointer-events:none}
.blog-hero .shell{position:relative;z-index:1}
.blog-shell{background:#f2efe8;padding:78px 0 110px}
.editorial-card{background:#faf8f2;border:1px solid rgba(20,33,29,.08);box-shadow:0 1px 0 rgba(20,33,29,.04)}
.editorial-card:hover{background:#fff}

.article-hero{
  position:relative;overflow:hidden;background:
  radial-gradient(circle at 88% 22%,rgba(95,146,122,.24),transparent 28%),
  linear-gradient(135deg,#08130f 0%,#10261f 62%,#173b30 100%);
  color:#fff;padding:92px 0 72px;border-bottom:0
}
.article-hero:after{content:"";position:absolute;right:5vw;top:50%;transform:translateY(-50%);width:260px;height:260px;border:1px solid rgba(255,255,255,.10);border-radius:50%;box-shadow:0 0 0 52px rgba(255,255,255,.018),0 0 0 104px rgba(255,255,255,.01);pointer-events:none}
.article-hero .shell{position:relative;z-index:1}
.article-hero .eyebrow{color:#a7bdb2}
.article-hero h1{color:#fff;max-width:980px}
.article-hero .dek{color:#c1d0c9;max-width:800px}
.crumbs{color:#a8bab1}.crumbs a{color:#e7eeea}
.article-layout{background:#f2efe8}
body:has(.article-layout){background:#f2efe8}
.article-body{background:#faf8f2;border:1px solid rgba(20,33,29,.07);padding:42px 48px 50px;box-shadow:0 14px 45px rgba(11,25,21,.055)}
.article-body p{color:#394840}
.quick-answer{background:#dfe9e2;border-left:4px solid var(--forest2);box-shadow:none}
.article-note{background:#e6e2d8;border:1px solid rgba(20,33,29,.06)}
.article-side .side-card{background:#e9e6dd;border-top:4px solid var(--forest);padding:22px 22px 8px}
.article-side .side-card a{border-bottom:1px solid rgba(20,33,29,.11)}
.back-row a{display:inline-flex;align-items:center;gap:8px}

@media(max-width:900px){html{scroll-padding-top:96px}.article-body{padding:34px 30px 40px}.article-hero:after{opacity:.45}}
@media(max-width:640px){html{scroll-padding-top:82px}.article-hero{padding:62px 0 50px}.article-body{padding:27px 22px 34px}.blog-hero{padding:70px 0 56px}}
.side-card .side-topic{display:block;padding:10px 0;border-bottom:1px solid rgba(20,33,29,.11);font-size:13px;color:#536159}

/* 2026-08-29 monetization architecture */
.monetization-band{background:#0d211a;color:#fff;padding:76px 0;border-top:1px solid rgba(255,255,255,.08)}
.monetization-intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end}.monetization-intro h2{font-size:clamp(38px,5vw,62px);line-height:1;letter-spacing:-.05em;margin:8px 0}.monetization-intro p{color:#bdcbc4;max-width:560px;margin:0 0 24px}
.monetization-page{background:#f2efe8;padding:76px 0 110px;min-height:55vh}.trust-strip{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}.trust-strip span{font-size:11px;letter-spacing:.07em;background:#dfe9e2;padding:9px 12px;border-radius:999px;color:#294438}
.commerce-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.commerce-card{background:#faf8f2;border:1px solid rgba(20,33,29,.08);padding:32px;min-height:310px;display:flex;flex-direction:column;align-items:flex-start}.commerce-kicker{font-size:10px;letter-spacing:.14em;font-weight:800;color:#6d7e75}.commerce-card h2{font-size:30px;line-height:1.05;letter-spacing:-.04em;margin:26px 0 12px}.commerce-card p{color:#536159}.commerce-card .text-link{margin-top:auto}.partner-button{margin-top:18px}
.revenue-explainer{margin-top:70px;background:#10261f;color:#fff;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:70px}.revenue-explainer h2{font-size:40px;line-height:1.05;letter-spacing:-.045em;margin:8px 0}.revenue-explainer p{color:#bdcbc4}.revenue-explainer a{color:#fff;text-decoration:underline;text-underline-offset:4px}
.prose-panel{background:#faf8f2;border:1px solid rgba(20,33,29,.08);padding:48px;max-width:900px}.prose-panel h2{font-size:30px;letter-spacing:-.035em;margin:40px 0 12px}.prose-panel h2:first-child{margin-top:0}.prose-panel p{color:#43524a;line-height:1.75}.legal-note{background:#e6e2d8;padding:18px 20px}
.trip-conversion{margin:46px 0 12px;background:#10261f;color:#fff;padding:28px}.trip-conversion h3{font-size:25px;margin:10px 0 8px}.trip-conversion p{color:#bdcbc4}.trip-conversion small{display:block;color:#92a69c;margin-top:12px}.trip-conversion .button{margin-top:10px}
.footer-legal-links{display:flex;gap:18px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);margin-top:45px;padding-top:22px;font-size:11px}.footer-legal-links a:hover{color:#fff}
@media(max-width:900px){.commerce-grid,.monetization-intro,.revenue-explainer{grid-template-columns:1fr}.commerce-card{min-height:260px}.monetization-intro,.revenue-explainer{gap:28px}}
@media(max-width:640px){.monetization-page{padding:50px 0 72px}.prose-panel{padding:28px 22px}.revenue-explainer{padding:28px}.commerce-card{padding:25px}}

/* V6 trust, bilingual header consistency & search naming */
.search-alias{margin:8px 0 0;color:#a9bbb2;font-size:13px;letter-spacing:.02em}.naming-note{font-size:13px!important;color:#65736c!important;border-bottom:1px solid rgba(20,33,29,.10);padding:0 0 22px;margin:-12px 0 28px}.naming-note a{font-weight:700}.prose-panel a{text-decoration:underline;text-underline-offset:3px}.prose-panel strong{color:#1c3329}.announcement-links{display:flex;align-items:center;gap:22px}.announcement .announcement-links a{margin-left:0}.footer-legal-links{line-height:1.5}.footer-legal-links a{opacity:.82}.footer-legal-links a:hover{opacity:1}.footer-grid a{line-height:1.35}
@media(max-width:720px){.announcement .shell{min-height:44px}.announcement> .shell>span:first-child{max-width:52%;line-height:1.25}.announcement-links{gap:12px}.announcement a{font-size:11px}.nav-inner{min-height:68px}.navlinks{top:68px}}


/* Contact / form trust UI */
.contact-page-panel{max-width:920px;margin-inline:auto}
.contact-form{display:grid;gap:18px;margin-top:18px}
.contact-form label{display:grid;gap:8px;font-weight:650}
.contact-form input,.contact-form textarea{width:100%;box-sizing:border-box;border:1px solid rgba(24,52,45,.18);border-radius:12px;padding:13px 14px;font:inherit;background:#fff;color:#17342d}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid rgba(35,91,72,.24);border-color:#376f5c}
.form-privacy{font-size:.84rem;line-height:1.55;opacity:.78;margin:0}
.contact-status{display:none;border-radius:12px;padding:13px 15px;margin:0 0 20px;font-weight:650}
.contact-status.show{display:block}.contact-status.success{background:#e9f4ee;color:#215b45;border:1px solid #b9d9c8}.contact-status.error{background:#fff1ee;color:#8b392f;border:1px solid #e7c1ba}
.contact-notes{margin-top:42px;padding-top:28px;border-top:1px solid rgba(24,52,45,.12)}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}

/* V8 direct contact + stronger guide index */
.direct-contact{max-width:860px;margin:0 auto}.direct-contact-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 12px}.button-secondary{background:transparent;border:1px solid var(--line);color:var(--ink);cursor:pointer}.contact-fallback{font-size:.94rem;color:var(--muted)}.contact-cta .contact-premium{grid-template-columns:1fr;max-width:900px}.guide-card h2 a{color:inherit;text-decoration:none}.side-topic{display:block;color:inherit;text-decoration:none}.side-topic:hover{text-decoration:underline}.article-body h2{scroll-margin-top:130px}


/* V9 — premium brand system + trip planner */
:root{--lux:#c8a96b;--mist:#eef2ee;--pine:#09251d;--pine2:#123b2e}
.brand{gap:12px}.brand-emblem{width:52px;height:34px;display:inline-flex;align-items:center}.brand-emblem svg{width:100%;height:100%;overflow:visible}.logo-ridge{fill:none;stroke:currentColor;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.logo-snow{fill:currentColor;opacity:.92}.logo-lake{fill:var(--forest2)}.brand-type{display:flex;flex-direction:column;line-height:1}.brand-type strong{font-size:13px;letter-spacing:.075em}.brand-type small{font-size:8px;letter-spacing:.12em;margin-top:5px;opacity:.62}.brand-mark,.brand-light{display:none}.footer .logo-lake{fill:#87aa9b}.footer .brand-type small{color:#a8bdb4;opacity:1}.nav{box-shadow:0 1px 0 rgba(8,28,22,.08)}
.hero h1{font-family:Georgia,'Times New Roman',serif;font-weight:500;letter-spacing:-.055em}.hero-kicker,.section-label{letter-spacing:.16em}.button{border-radius:2px}.slope-card,.editorial-card,.commerce-card{border-radius:2px}.section-head h2,.intro h2,.tianchi-copy h2,.language-banner h2{font-family:Georgia,'Times New Roman',serif;font-weight:500}
.planner-hero{background:radial-gradient(circle at 80% 20%,rgba(200,169,107,.16),transparent 25%),linear-gradient(125deg,#061711,#0d3025 68%,#184838);color:#fff;padding:105px 0 90px;position:relative;overflow:hidden}.planner-hero:after{content:"";position:absolute;right:-8vw;top:-180px;width:600px;height:600px;border:1px solid rgba(255,255,255,.07);border-radius:50%;box-shadow:0 0 0 90px rgba(255,255,255,.018),0 0 0 180px rgba(255,255,255,.012)}.planner-hero .shell{position:relative;z-index:1}.planner-hero h1{font:500 clamp(48px,7vw,86px)/.98 Georgia,serif;letter-spacing:-.055em;max-width:900px;margin:14px 0 24px}.planner-hero p{font-size:18px;line-height:1.65;color:#c9d7d1;max-width:720px}.planner-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:35px}.planner-pills span{border:1px solid rgba(255,255,255,.22);padding:9px 12px;font-size:10px;letter-spacing:.12em}.planner-page{background:#f3f0e8;padding:90px 0 110px}.decision-block{display:grid;grid-template-columns:.72fr 1.28fr;gap:75px;padding:35px 0 80px;border-bottom:1px solid rgba(20,33,29,.13)}.step-no{font:italic 18px Georgia,serif;color:#8c7a56;display:block;margin-bottom:25px}.decision-block h2,.planner-panel h2,.itinerary-builder h2,.budget-check h2,.tianchi-plan h2,.planner-next h2{font:500 clamp(35px,4vw,54px)/1.03 Georgia,serif;letter-spacing:-.045em;margin:10px 0 18px}.decision-block p,.planner-panel p{color:#536159;line-height:1.7}.decision-cards{display:grid;gap:10px}.decision-cards a{display:grid;grid-template-columns:140px 1fr;gap:4px 24px;background:#faf8f2;border:1px solid rgba(20,33,29,.09);padding:24px 26px;transition:.2s}.decision-cards a:hover{transform:translateX(5px);background:#fff}.decision-cards b{grid-row:1/3;font:500 24px Georgia,serif}.decision-cards span{font-weight:700}.decision-cards small{color:#66736d}.planner-split{display:grid;grid-template-columns:1fr 1fr;margin:80px 0}.planner-panel{background:#faf8f2;padding:55px}.planner-panel.dark{background:#102d23;color:#fff}.planner-panel.dark p{color:#bdcbc4}.light-link{color:#fff}.base-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;grid-column:1/-1}.base-grid article{background:#faf8f2;padding:28px;border-top:3px solid var(--forest2)}.base-grid strong{font:500 22px Georgia,serif}.base-grid p{font-size:14px}.decision-block>.button{grid-column:2}.tianchi-plan{background:#0c2b21;color:#fff;padding:55px 60px;margin:80px 0;display:grid;grid-template-columns:1fr 1fr;gap:70px}.tianchi-plan p{color:#c3d0ca;line-height:1.75}.itinerary-builder{padding:20px 0 80px}.day-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:35px}.day-grid article{background:#faf8f2;padding:32px;border:1px solid rgba(20,33,29,.08)}.day-grid article.recommended{background:#e0e8df;border-top:4px solid var(--forest)}.day-grid span{font-size:10px;font-weight:800;letter-spacing:.12em}.day-grid h3{font:500 27px Georgia,serif}.day-grid p{color:#59665f;line-height:1.65}.day-grid a{font-weight:700}.budget-check{display:grid;grid-template-columns:1fr 1fr;gap:60px;border-top:1px solid rgba(20,33,29,.14);padding:70px 0}.budget-check ol{counter-reset:item;list-style:none;margin:0;padding:0}.budget-check li{padding:14px 0;border-bottom:1px solid rgba(20,33,29,.12);font-weight:650}.planner-next{background:linear-gradient(125deg,#173b30,#0a2119);color:#fff;padding:48px 55px;display:flex;align-items:end;justify-content:space-between;gap:40px}.planner-next p{color:#c0cec7;max-width:650px}.planner-next h2{font-size:38px}.planner-next .button{flex:0 0 auto}
@media(max-width:900px){.brand-type strong{font-size:11px}.decision-block,.planner-split,.tianchi-plan,.budget-check{grid-template-columns:1fr;gap:28px}.decision-block>.button{grid-column:1}.base-grid,.day-grid{grid-template-columns:1fr}.planner-panel{padding:38px}.tianchi-plan{padding:40px}.planner-next{display:block}.planner-next .button{margin-top:15px}}
@media(max-width:640px){.brand-emblem{width:42px}.brand-type small{font-size:6.5px}.announcement> .shell>span:first-child{font-size:9px}.planner-hero{padding:70px 0 60px}.planner-page{padding:50px 0 75px}.decision-block{padding:20px 0 55px}.decision-cards a{grid-template-columns:1fr}.decision-cards b{grid-row:auto}.planner-split{margin:55px 0}.planner-panel{padding:28px 24px}.tianchi-plan{margin:55px 0;padding:30px 24px}.planner-next{padding:34px 25px}}

/* V10 — visual system matched to approved premium mockup */
:root{--v10-ink:#102c24;--v10-green:#0d5b43;--v10-deep:#071d17;--v10-blue:#1e6f9a;--v10-sky:#bcd8ea;--v10-cream:#f4ead8;--v10-paper:#fbfaf6;--v10-gold:#e4aa4b;--v10-shadow:0 18px 50px rgba(8,31,24,.10)}
body{background:var(--v10-paper);color:var(--v10-ink)}
.announcement{background:#f7f7f3;color:#52645d;border-bottom:1px solid rgba(16,44,36,.08)}
.nav{background:#fff;position:sticky;top:0;z-index:50;box-shadow:0 8px 30px rgba(14,45,36,.06)}
.nav-inner{min-height:76px}.brand{color:var(--v10-ink)}.brand-emblem{width:62px;height:42px}.brand-emblem img{width:100%;height:100%;object-fit:contain}.brand-type strong{font-size:14px;letter-spacing:.045em}.brand-type small{font-size:8px;letter-spacing:.1em;color:#60756d;opacity:1}.navlinks a{font-size:13px}.nav-cta{border:1px solid #d6e0db!important;background:transparent!important;color:var(--v10-ink)!important;border-radius:999px!important;padding:11px 16px!important}
.v10-hero{min-height:690px;position:relative;display:flex;align-items:flex-end;color:#fff;background-image:linear-gradient(90deg,rgba(5,23,19,.76) 0%,rgba(5,23,19,.30) 50%,rgba(5,23,19,.10) 100%),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg');background-size:cover;background-position:center 46%}
.v10-hero:after{content:"";position:absolute;inset:auto 0 0;height:44%;background:linear-gradient(transparent,rgba(3,18,15,.45))}.v10-hero-inner{position:relative;z-index:2;padding:110px 0 56px}.v10-hero h1{font:500 clamp(58px,7vw,92px)/.95 Georgia,serif;letter-spacing:-.055em;margin:12px 0 14px}.v10-hero h2{font:500 clamp(20px,2.2vw,30px)/1.25 Georgia,serif;margin:0 0 13px;color:#fff}.v10-hero p{max-width:600px;font-size:18px;line-height:1.65;color:rgba(255,255,255,.88)}.hero-alias{letter-spacing:.18em;font-size:12px;font-weight:700;margin-bottom:22px}.v10-hero .hero-actions{margin-top:32px}.v10-hero .button-primary{background:#0d6a49;border-radius:999px;padding:15px 25px}.v10-hero .button-glass{border-radius:999px}.hero-location{margin-top:55px;font-size:13px;font-weight:650}.hero-kicker{font-size:11px;letter-spacing:.18em;font-weight:800}
.v10-why,.v10-guides,.v10-seasons{padding:84px 0}.v10-heading-row{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:30px}.v10-heading-row h2{font:500 clamp(34px,4vw,55px)/1.02 Georgia,serif;letter-spacing:-.04em;margin:8px 0 6px}.v10-heading-row p{margin:0;color:#617069}.outline-link{border:1px solid #1f5747;border-radius:999px;padding:11px 18px;font-size:13px;font-weight:700;white-space:nowrap}.v10-feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.v10-feature-card{position:relative;background:#fff;border:1px solid rgba(15,50,39,.08);border-radius:12px;overflow:hidden;box-shadow:0 10px 28px rgba(13,51,39,.07);color:inherit;text-decoration:none}.v10-card-photo{height:178px;background-size:cover;background-position:center}.v10-feature-card.tianchi .v10-card-photo,.v10-guide-card .gp1{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.v10-feature-card.seasons-card .v10-card-photo,.gp2{background-image:linear-gradient(rgba(15,57,45,.08),rgba(15,57,45,.08)),url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg')}.v10-feature-card.springs .v10-card-photo{background-image:linear-gradient(25deg,rgba(18,70,55,.28),rgba(229,169,74,.10)),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg');background-position:center 66%}.v10-feature-card.outdoors .v10-card-photo,.gp4{background-image:url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg');background-position:center 70%}.v10-icon{display:grid;place-items:center;position:absolute;top:156px;left:18px;width:38px;height:38px;border-radius:50%;background:#0d5b43;color:#fff;border:4px solid #fff;font-weight:800}.v10-feature-card h3{font-size:18px;margin:25px 18px 7px}.v10-feature-card p{font-size:13px;line-height:1.5;color:#65736d;margin:0 18px 20px}
.v10-guides{background:#f7f3eb}.v10-guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.v10-guide-card{background:#fff;color:inherit;text-decoration:none;border-radius:9px;overflow:hidden;border:1px solid rgba(16,44,36,.08);box-shadow:0 10px 24px rgba(13,45,35,.05)}.guide-photo{height:150px;background-size:cover;background-position:center;position:relative}.gp3{background-image:linear-gradient(135deg,rgba(16,74,56,.76),rgba(23,87,113,.55)),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.guide-photo span{position:absolute;left:10px;top:10px;background:#0b3556;color:#fff;padding:5px 8px;border-radius:4px;font-size:8px;letter-spacing:.1em;font-weight:800}.guide-copy{padding:16px}.guide-copy h3{font-size:16px;line-height:1.28;margin:0 0 7px}.guide-copy p{font-size:12px;color:#6a7671;margin:0 0 13px}.guide-copy small{font-size:10px;color:#77817d}
.v10-planner{padding:92px 0;background:#fff}.v10-planner-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:55px;align-items:stretch}.v10-planner h2{font:500 clamp(38px,4.5vw,60px)/1 Georgia,serif;letter-spacing:-.045em;margin:8px 0 10px}.v10-planner p{color:#627069}.planner-icons{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:36px 0}.planner-icons a{display:grid;gap:8px;text-align:center;color:inherit;text-decoration:none;font-size:12px}.planner-icons span{font-size:28px;color:#0c6448}.planner-icons b{font-weight:700}.planner-poster{border-radius:14px;min-height:420px;padding:38px;background:linear-gradient(180deg,rgba(3,24,19,.08),rgba(3,24,19,.86)),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg');background-size:cover;background-position:center;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;box-shadow:var(--v10-shadow)}.planner-poster blockquote{font:500 30px/1.2 Georgia,serif;margin:18px 0}.planner-poster a{color:#fff;font-weight:700}.poster-label{font-size:10px;letter-spacing:.18em;font-weight:800}
.v10-seasons{background:#f8f5ee}.v10-season-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.vs{min-height:280px;border-radius:12px;padding:25px;display:flex;flex-direction:column;justify-content:end;color:#fff;text-decoration:none;background-size:cover;background-position:center;box-shadow:0 10px 25px rgba(11,44,35,.08);position:relative;overflow:hidden}.vs:before{content:"";position:absolute;inset:0;background:linear-gradient(transparent 30%,rgba(2,18,14,.78))}.vs>*{position:relative;z-index:1}.vs span{font-size:10px;letter-spacing:.16em;font-weight:800}.vs strong{font:500 28px Georgia,serif;margin-top:6px}.vs small{font-size:12px;margin-top:4px}.winter-v{background-image:url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg')}.summer-v{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.autumn-v{background-image:linear-gradient(rgba(172,95,20,.18),rgba(172,95,20,.18)),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}
.v10-trust{background:#09271e;color:#fff;padding:72px 0}.v10-trust .shell{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:end}.v10-trust h2{font:500 46px/1.02 Georgia,serif;margin:10px 0}.v10-trust p{font-size:17px;line-height:1.75;color:#c6d4cd;margin:0}.footer{background:#061913}.footer .brand-emblem img{filter:brightness(0) invert(1);opacity:.92}
@media(max-width:980px){.v10-feature-grid,.v10-guide-grid{grid-template-columns:repeat(2,1fr)}.v10-planner-grid,.v10-trust .shell{grid-template-columns:1fr}.v10-season-row{grid-template-columns:1fr 1fr}.nav-inner{min-height:70px}}
@media(max-width:700px){.v10-hero{min-height:600px}.v10-hero-inner{padding:90px 0 38px}.v10-hero h1{font-size:52px}.v10-hero h2{font-size:20px}.v10-hero p{font-size:15px}.hero-location{margin-top:34px}.v10-heading-row{display:block}.outline-link{display:inline-block;margin-top:16px}.v10-feature-grid,.v10-guide-grid,.v10-season-row{grid-template-columns:1fr}.v10-feature-card{display:grid;grid-template-columns:125px 1fr;min-height:125px}.v10-card-photo{height:100%;grid-row:1/4}.v10-icon{display:none}.v10-feature-card h3{margin:20px 15px 5px}.v10-feature-card p{margin:0 15px 18px}.planner-icons{grid-template-columns:repeat(2,1fr)}.planner-poster{min-height:330px}.v10-why,.v10-guides,.v10-seasons,.v10-planner{padding:58px 0}.brand-type strong{font-size:10px}.brand-emblem{width:48px}.announcement> .shell>span:first-child{font-size:9px}}


/* final layout / stability layer */
/* ChangbaiMountain V11 — high fidelity visual system based on approved concept */
:root{--v11-ink:#112b2b;--v11-green:#075d3f;--v11-green2:#0c7451;--v11-blue:#0d72ad;--v11-sky:#d8edf7;--v11-paper:#fbfaf7;--v11-sand:#f3e5cd;--v11-line:#e4e8e3;--v11-muted:#68746f;--v11-shadow:0 18px 44px rgba(17,43,43,.11);--v11-radius:18px}
html{scroll-behavior:smooth} body{background:var(--v11-paper);color:var(--v11-ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.shell{width:min(1180px,calc(100% - 44px));margin-inline:auto}
.announcement{background:#f4f7f5;border-bottom:1px solid #e4e9e6;color:#52625b;font-size:12px;letter-spacing:.02em}.announcement .shell{min-height:32px;display:flex;align-items:center;justify-content:space-between}.announcement-links{display:flex;gap:18px}.announcement a{color:#355d4f;font-weight:650;text-decoration:none}
.nav{background:rgba(255,255,255,.98);border-bottom:1px solid #e8ece9;box-shadow:0 1px 0 rgba(13,45,38,.02);position:sticky;top:0;z-index:80}.nav-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--v11-ink);min-width:260px}.brand-emblem{display:block;width:76px;height:49px;flex:0 0 auto}.brand-emblem img{width:100%;height:100%;object-fit:contain}.brand-type{display:flex;flex-direction:column;line-height:1.04}.brand-type strong{font-family:Georgia,"Times New Roman",serif;font-size:16px;letter-spacing:.055em;font-weight:700}.brand-type small{font-size:9.5px;letter-spacing:.08em;color:#41645a;margin-top:5px;font-weight:700}.navlinks{display:flex;align-items:center;gap:28px}.navlinks a{font-size:13px;font-weight:650;color:#233c37;text-decoration:none}.navlinks a:hover{color:var(--v11-green)}.nav-cta{background:var(--v11-green)!important;color:white!important;padding:11px 18px;border-radius:999px}.menu-toggle{border:0;background:transparent;font-size:22px;color:var(--v11-ink)}
.footer{background:#0b1d20!important;color:#dfe9e7!important;margin-top:0;padding-top:58px}.footer .brand-type strong,.footer .brand-type small{color:white}.footer p,.footer a{color:#aebfba!important}.footer strong{color:#fff!important}.footer-grid{gap:52px}.footer-legal-links,.footer-bottom{border-color:rgba(255,255,255,.12)!important}
/* Homepage */
.v11-home{overflow-x:hidden;overflow-y:auto;background:#fff}
.v11-hero{min-height:620px;position:relative;display:flex;align-items:flex-end;background-image:linear-gradient(90deg,rgba(5,31,52,.74) 0%,rgba(8,42,71,.34) 48%,rgba(7,29,43,.1) 75%),linear-gradient(0deg,rgba(4,32,56,.38),rgba(4,32,56,.02) 55%),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg');background-size:cover;background-position:center 48%;color:white}.v11-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,28,40,0) 54%,rgba(4,28,40,.17))}.v11-hero-content{position:relative;z-index:2;padding:95px 0 70px;max-width:720px}.v11-eyebrow{font-size:12px;letter-spacing:.22em;font-weight:700;opacity:.9;margin-bottom:18px}.v11-hero h1{font-family:Georgia,"Times New Roman",serif;font-weight:500;font-size:clamp(54px,6.8vw,86px);line-height:.95;letter-spacing:-.035em;margin:0 0 16px}.v11-hero h2{font-size:20px;line-height:1.35;font-weight:500;margin:0 0 10px}.v11-alias{font-size:13px;letter-spacing:.16em;font-weight:650;margin:0 0 24px}.v11-hero p{font-size:16px;line-height:1.75;max-width:525px;margin:0 0 28px;color:rgba(255,255,255,.92)}.v11-actions{display:flex;gap:12px;flex-wrap:wrap}.v11-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 23px;border-radius:999px;text-decoration:none;font-size:13px;font-weight:750}.v11-btn.primary{background:var(--v11-green2);color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.15)}.v11-btn.glass{border:1px solid rgba(255,255,255,.8);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(8px)}.v11-location{margin-top:34px;font-size:12px;font-weight:650;display:flex;gap:8px;align-items:center}.v11-dot{width:8px;height:8px;border:2px solid #fff;border-radius:50%}
.v11-section{padding:70px 0}.v11-section.soft{background:#fbfaf7}.v11-kicker{font-size:10px;letter-spacing:.2em;color:#5d7a70;font-weight:800;text-transform:uppercase;margin-bottom:9px}.v11-title{font-family:Georgia,"Times New Roman",serif;font-size:clamp(33px,4.2vw,47px);line-height:1.05;letter-spacing:-.025em;margin:0 0 9px;color:#152c2a}.v11-sub{color:var(--v11-muted);font-size:15px;line-height:1.7;margin:0;max-width:730px}.v11-section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:29px}.v11-text-link{border:1px solid #8ba198;border-radius:999px;padding:10px 17px;text-decoration:none;font-size:12px;font-weight:700;color:#284b41;white-space:nowrap}
.v11-why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.v11-why-card{background:white;border-radius:14px;overflow:hidden;box-shadow:0 8px 26px rgba(15,52,43,.09);text-decoration:none;color:inherit;border:1px solid #edf0ee;position:relative;transition:transform .25s ease,box-shadow .25s ease}.v11-why-card:hover{transform:translateY(-4px);box-shadow:var(--v11-shadow)}.v11-card-image{height:170px;background-size:cover;background-position:center}.v11-why-card:nth-child(1) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.v11-why-card:nth-child(2) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/d/d1/Heven_Lake_ChangBai_Mountain.jpg')}.v11-why-card:nth-child(3) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/1/15/Changbai_Hot_spring_2.jpg')}.v11-why-card:nth-child(4) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/0/06/%E5%AE%89%E5%9B%BE_%E9%95%BF%E7%99%BD%E5%B1%B1%E4%B9%8B%E4%BA%8E%E9%95%BF%E7%99%BD%E7%80%91%E5%B8%83%E8%84%9A%E4%B8%8B%E5%90%91%E5%B1%B1%E5%A4%96%E6%9C%9B%E5%8E%BB_03.jpg')}.v11-card-icon{position:absolute;top:147px;left:16px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--v11-green);color:white;font-size:15px;border:3px solid white}.v11-card-body{padding:25px 16px 18px}.v11-card-body h3{font-size:15px;margin:0 0 6px}.v11-card-body p{font-size:12.5px;line-height:1.5;color:#596b64;margin:0}
.v11-guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.v11-guide{border-radius:13px;overflow:hidden;background:#fff;border:1px solid #e6ebe8;box-shadow:0 8px 24px rgba(15,52,43,.07);text-decoration:none;color:inherit}.v11-guide-img{height:155px;background-size:cover;background-position:center;position:relative}.v11-guide:nth-child(1) .v11-guide-img{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}.v11-guide:nth-child(2) .v11-guide-img{background-image:url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg')}.v11-guide:nth-child(3) .v11-guide-img{background-image:url('https://upload.wikimedia.org/wikipedia/commons/d/da/%E5%90%89%E6%9E%97%E7%9C%81%E9%95%BF%E7%99%BD%E5%B1%B1%E8%84%9A%E4%B8%8B%E5%8E%9F%E5%A7%8B%E6%A3%AE%E6%9E%97_-_panoramio.jpg')}.v11-guide:nth-child(4) .v11-guide-img{background-image:url('https://upload.wikimedia.org/wikipedia/commons/d/d1/Heven_Lake_ChangBai_Mountain.jpg')}.v11-label{position:absolute;top:9px;left:9px;background:#123f53;color:white;border-radius:4px;padding:4px 7px;font-size:8px;letter-spacing:.09em;font-weight:800}.v11-guide-copy{padding:15px}.v11-guide-copy h3{font-size:15px;line-height:1.3;margin:0 0 7px}.v11-guide-copy p{font-size:12px;line-height:1.45;color:#69766f;margin:0 0 10px}.v11-read{font-size:10px;color:#718078;font-weight:650}
.v11-season-planner{background:#f6f0e7;padding:76px 0}.v11-split{display:grid;grid-template-columns:1fr 1.04fr;gap:38px;align-items:stretch}.v11-season-side{display:grid;grid-template-columns:1fr 1fr;gap:16px}.v11-season-card{min-height:350px;border-radius:17px;overflow:hidden;position:relative;background-size:cover;background-position:center;box-shadow:var(--v11-shadow);color:white}.v11-season-card.winter{background-image:linear-gradient(0deg,rgba(4,31,43,.58),rgba(4,31,43,.04)),url('https://upload.wikimedia.org/wikipedia/commons/d/d1/Heven_Lake_ChangBai_Mountain.jpg')}.v11-season-card.autumn{background-image:linear-gradient(0deg,rgba(54,34,15,.62),rgba(54,34,15,.08)),url('https://upload.wikimedia.org/wikipedia/commons/d/da/%E5%90%89%E6%9E%97%E7%9C%81%E9%95%BF%E7%99%BD%E5%B1%B1%E8%84%9A%E4%B8%8B%E5%8E%9F%E5%A7%8B%E6%A3%AE%E6%9E%97_-_panoramio.jpg')}.v11-season-copy{position:absolute;left:18px;right:18px;bottom:18px}.v11-season-copy strong{display:block;font-family:Georgia,"Times New Roman",serif;font-size:24px}.v11-season-copy span{font-size:11px;opacity:.92}.v11-planner-panel{background:#fff;border-radius:18px;padding:42px 42px 36px;box-shadow:var(--v11-shadow);display:flex;flex-direction:column;justify-content:center}.v11-planner-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px 20px;margin:28px 0 30px}.v11-planner-item{text-decoration:none;color:var(--v11-ink);text-align:center}.v11-planner-item svg{width:27px;height:27px;stroke:var(--v11-green);stroke-width:1.8;fill:none;margin-bottom:8px}.v11-planner-item b{font-size:11px;display:block}.v11-planner-panel .v11-btn{align-self:flex-start}
.v11-trust{background:#0e2c27;color:#fff;padding:58px 0}.v11-trust-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:center}.v11-trust h2{font-family:Georgia,"Times New Roman",serif;font-size:38px;line-height:1.1;margin:0}.v11-trust p{color:#cbd9d4;line-height:1.75;margin:0}
/* Inner page polish without changing content structure */
.blog-hero,.article-hero{background:linear-gradient(135deg,#0f342c,#0d4e42)!important}.blog-shell,.article-layout,.article-body,.prose-panel{background:#fff!important}.blog-card,.guide-card,.commerce-card{border-radius:16px!important;box-shadow:0 10px 28px rgba(17,43,43,.08)!important;border-color:#e7ebe8!important}.article-body h1,.article-body h2,.article-hero h1,.blog-hero h1,.page-hero h1{font-family:Georgia,"Times New Roman",serif!important;letter-spacing:-.02em}.article-body{font-size:16px;line-height:1.78}.article-body h2{font-size:30px;margin-top:42px}.article-body h3{font-size:21px;margin-top:30px}.article-layout{border-radius:18px}
@media(max-width:980px){.navlinks{gap:17px}.navlinks a{font-size:12px}.brand{min-width:230px}.v11-why-grid,.v11-guide-grid{grid-template-columns:repeat(2,1fr)}.v11-split{grid-template-columns:1fr}.v11-hero{min-height:570px}}
@media(max-width:760px){.shell{width:min(100% - 28px,1180px)}.announcement .shell{min-height:36px;font-size:10px}.announcement span:first-child{max-width:220px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-inner{height:66px}.brand{min-width:0}.brand-emblem{width:58px;height:40px}.brand-type strong{font-size:13px}.brand-type small{font-size:8px}.navlinks{display:none}.navlinks.open{display:flex;position:absolute;top:66px;left:0;right:0;background:white;padding:20px 24px;flex-direction:column;align-items:flex-start;box-shadow:0 16px 30px rgba(0,0,0,.08)}.v11-hero{min-height:610px;background-position:61% center}.v11-hero-content{padding:85px 0 50px}.v11-hero h1{font-size:55px;max-width:350px}.v11-hero h2{font-size:17px}.v11-section{padding:54px 0}.v11-section-head{align-items:flex-start;flex-direction:column;gap:16px}.v11-why-grid,.v11-guide-grid{grid-template-columns:1fr 1fr;gap:11px}.v11-card-image{height:130px}.v11-card-icon{top:108px}.v11-card-body{padding:24px 12px 14px}.v11-guide-img{height:120px}.v11-guide-copy{padding:12px}.v11-season-planner{padding:54px 0}.v11-season-side{gap:10px}.v11-season-card{min-height:270px}.v11-planner-panel{padding:30px 22px}.v11-planner-grid{gap:22px 8px}.v11-trust-grid{grid-template-columns:1fr;gap:18px}.v11-trust h2{font-size:31px}}
@media(max-width:460px){.announcement-links{gap:10px}.brand-type small{letter-spacing:.03em}.v11-why-grid,.v11-guide-grid{grid-template-columns:1fr}.v11-card-image{height:180px}.v11-card-icon{top:158px}.v11-guide-img{height:180px}.v11-season-side{grid-template-columns:1fr 1fr}.v11-season-card{min-height:230px}.v11-planner-grid{grid-template-columns:repeat(2,1fr)}.v11-hero h1{font-size:48px}}


/* ==============================
   V12 visual + interaction hardening
   Reference direction: premium ivory/white destination magazine,
   panoramic Tianchi hero, high-trust image cards, refined pine/lake palette.
   ============================== */
:root{
  --v12-ink:#0f2927;--v12-pine:#0b513f;--v12-pine2:#0e6a50;--v12-lake:#2e83b9;
  --v12-sky:#d9edf6;--v12-ivory:#fbf8f1;--v12-sand:#efe2cf;--v12-line:#dfe7e2;
}
html{scroll-behavior:smooth;overflow-y:scroll}
body,body.v11-home{overflow-x:hidden!important;overflow-y:auto!important;min-height:100%;background:#fff}
body.menu-open{overflow-y:auto!important}
a,button{touch-action:manipulation}
.announcement{position:relative;z-index:1002;background:#f7faf8;border-bottom:1px solid #e7ece8}
.announcement .shell{min-height:34px}
.nav{position:sticky!important;top:0;z-index:1001!important;background:rgba(255,255,255,.985)!important;border-bottom:1px solid #e8eeea!important;box-shadow:0 5px 24px rgba(19,55,47,.045)!important;backdrop-filter:blur(14px)}
.nav-inner{height:84px!important;min-height:84px!important;position:relative;overflow:visible}
.brand{min-width:320px!important;gap:9px!important;position:relative;z-index:1003}
.brand-emblem{width:106px!important;height:60px!important;overflow:hidden;display:flex!important;align-items:center!important;justify-content:center!important}
.brand-emblem img{width:114px!important;height:58px!important;object-fit:cover!important;object-position:center 48%!important;mix-blend-mode:multiply}
.brand-type strong{font-family:Georgia,"Times New Roman",serif!important;font-size:17px!important;letter-spacing:.035em!important;color:#103f36!important;white-space:nowrap}
.brand-type small{font-size:9px!important;letter-spacing:.11em!important;color:#3d655b!important;margin-top:5px!important;white-space:nowrap}
.navlinks{position:relative;z-index:1003;pointer-events:auto!important;gap:26px!important}
.navlinks a,.menu-toggle{pointer-events:auto!important;position:relative;z-index:1004}
.navlinks a{font-size:12.5px!important;color:#1d3a34!important}
.navlinks a:hover{color:#0c674d!important;opacity:1!important}
.nav-cta{background:#0d6149!important;color:#fff!important;border:0!important;box-shadow:0 5px 16px rgba(13,97,73,.13)}
.menu-toggle{cursor:pointer}

.v11-home{background:#fff!important}
.v11-hero{min-height:650px!important;overflow:hidden;isolation:isolate;background-image:
  linear-gradient(90deg,rgba(4,31,61,.76) 0%,rgba(5,41,75,.45) 43%,rgba(7,31,52,.12) 76%),
  linear-gradient(180deg,rgba(239,155,118,.26) 0%,rgba(39,100,151,.03) 31%,rgba(4,31,61,.28) 100%),
  url('https://upload.wikimedia.org/wikipedia/commons/thumb/d/d0/Tianchi_Lake_Panorama.jpg/1280px-Tianchi_Lake_Panorama.jpg')!important;
  background-size:cover!important;background-position:center 50%!important}
.v11-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 66% 10%,rgba(248,181,124,.28),transparent 28%);pointer-events:none!important;z-index:0}
.v11-hero:after{pointer-events:none!important;z-index:0!important;background:linear-gradient(180deg,transparent 62%,rgba(1,26,48,.34))!important}
.v11-hero-content{z-index:2!important;padding:106px 0 62px!important;max-width:720px!important}
.v11-eyebrow{font-size:11px!important;letter-spacing:.2em!important;margin-bottom:17px!important}
.v11-hero h1{font-size:clamp(58px,6.3vw,88px)!important;line-height:.94!important;text-shadow:0 4px 22px rgba(0,0,0,.16)}
.v11-hero h2{font-size:21px!important;font-weight:500!important}
.v11-alias{font-size:12px!important;margin-top:16px!important}
.v11-hero p{max-width:545px!important;font-size:15.5px!important;line-height:1.65!important}
.v11-btn.primary{background:#0b684a!important;box-shadow:0 12px 28px rgba(0,0,0,.17)}

.v11-section{padding:72px 0!important}
.v11-section.soft{background:#fbf8f1!important}
.v11-kicker{color:#4d746a!important;letter-spacing:.18em!important}
.v11-title{font-size:clamp(35px,3.4vw,50px)!important;line-height:1.03!important;color:#172d2a!important;letter-spacing:-.035em!important}
.v11-sub{color:#5d6d68!important}
.v11-text-link{border:1px solid #a9c1b8;padding:10px 16px;border-radius:999px;color:#155f4c!important;background:#fff;text-decoration:none;font-weight:650}
.v11-text-link:hover{border-color:#0c674d;box-shadow:0 8px 24px rgba(13,78,59,.08)}
.v11-why-grid,.v11-guide-grid{gap:18px!important}
.v11-why-card,.v11-guide{border-radius:12px!important;border:1px solid #e5ebe7!important;box-shadow:0 10px 26px rgba(17,59,49,.07)!important;transition:transform .22s ease,box-shadow .22s ease}
.v11-why-card:hover,.v11-guide:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(17,59,49,.12)!important}
.v11-card-image{height:184px!important}
.v11-card-icon{top:161px!important;width:39px!important;height:39px!important;background:#0c6148!important}
.v11-card-body h3,.v11-guide-copy h3{color:#162e29}
.v11-guide-img{height:164px!important}
.v11-label{background:#0d4661!important}

/* each visual should tell the story at a glance */
.v11-why-card:nth-child(1) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')!important;background-position:center 52%!important}
.v11-why-card:nth-child(2) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/d/d1/Heven_Lake_ChangBai_Mountain.jpg')!important;background-position:center 45%!important}
.v11-why-card:nth-child(3) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/1/15/Changbai_Hot_spring_2.jpg')!important;background-position:center 58%!important}
.v11-why-card:nth-child(4) .v11-card-image{background-image:url('https://upload.wikimedia.org/wikipedia/commons/0/06/%E5%AE%89%E5%9B%BE_%E9%95%BF%E7%99%BD%E5%B1%B1%E4%B9%8B%E4%BA%8E%E9%95%BF%E7%99%BD%E7%80%91%E5%B8%83%E8%84%9A%E4%B8%8B%E5%90%91%E5%B1%B1%E5%A4%96%E6%9C%9B%E5%8E%BB_03.jpg')!important;background-position:center 62%!important}
.v11-guide:nth-child(1) .v11-guide-img{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')!important}
.v11-guide:nth-child(2) .v11-guide-img{background-image:url('https://upload.wikimedia.org/wikipedia/commons/a/a6/Changbai_Mountain%2CChina.jpg')!important}
.v11-guide:nth-child(3) .v11-guide-img{background-image:linear-gradient(135deg,rgba(7,54,73,.18),rgba(10,87,66,.04)),url('https://upload.wikimedia.org/wikipedia/commons/d/da/%E5%90%89%E6%9E%97%E7%9C%81%E9%95%BF%E7%99%BD%E5%B1%B1%E8%84%9A%E4%B8%8B%E5%8E%9F%E5%A7%8B%E6%A3%AE%E6%9E%97_-_panoramio.jpg')!important}
.v11-guide:nth-child(4) .v11-guide-img{background-image:url('https://upload.wikimedia.org/wikipedia/commons/d/d1/Heven_Lake_ChangBai_Mountain.jpg')!important}

.v11-season-planner{background:linear-gradient(180deg,#f8f3e9,#f4ede1)!important;padding:72px 0!important}
.v11-season-card{border-radius:14px!important;box-shadow:0 12px 30px rgba(23,55,46,.11)!important}
.v11-planner-panel{border:1px solid #e4e9e5!important;border-radius:16px!important;box-shadow:0 14px 34px rgba(17,57,47,.08)!important}
.v11-planner-item{border-radius:10px;padding:9px 5px!important}
.v11-planner-item:hover{background:#f4f8f5}
.v11-planner-item svg{stroke:#0d654c!important}
.v11-trust{background:#0b3027!important}
.footer{background:#071e1a!important}
.footer .brand-emblem img{mix-blend-mode:normal;filter:none;background:#fff;border-radius:8px;padding:2px}

/* Decorative layers never block links */
.v11-hero:before,.v11-hero:after,.blog-hero:before,.blog-hero:after,.article-hero:before,.article-hero:after,.planner-hero:before,.planner-hero:after{pointer-events:none!important}
main,header,section,footer{position:relative}
.nav a,.announcement a,.footer a,.v11-home main a{pointer-events:auto!important}

@media(max-width:980px){
  .brand{min-width:250px!important}.brand-emblem{width:86px!important;height:52px!important}.brand-emblem img{width:92px!important;height:48px!important}
  .navlinks{gap:14px!important}.navlinks a{font-size:11.5px!important}
}
@media(max-width:760px){
  html,body,body.v11-home{overflow-y:auto!important;overscroll-behavior-y:auto}
  .announcement .shell{min-height:38px!important}
  .nav-inner{height:70px!important;min-height:70px!important}
  .brand{min-width:0!important;max-width:calc(100% - 54px)}
  .brand-emblem{width:66px!important;height:42px!important}.brand-emblem img{width:72px!important;height:40px!important}
  .brand-type strong{font-size:12.5px!important}.brand-type small{font-size:7.5px!important}
  .menu-toggle{display:block!important;margin-left:auto;z-index:2004!important}
  .navlinks{display:none!important;position:absolute!important;top:70px!important;left:-14px!important;right:-14px!important;background:#fff!important;padding:20px 22px 24px!important;flex-direction:column!important;align-items:stretch!important;gap:2px!important;border-top:1px solid #e8eeea;border-bottom:1px solid #e1e8e4;box-shadow:0 18px 34px rgba(12,49,39,.13);z-index:2003!important}
  .navlinks.open{display:flex!important}
  .navlinks a{display:block!important;padding:12px 4px!important;font-size:14px!important}
  .nav-cta{text-align:center;margin-top:7px}
  .v11-hero{min-height:600px!important;background-position:center center!important}
  .v11-hero-content{padding:78px 0 48px!important}.v11-hero h1{font-size:52px!important;max-width:360px}
  .v11-why-grid,.v11-guide-grid{grid-template-columns:1fr 1fr!important}.v11-card-image{height:132px!important}.v11-card-icon{top:110px!important}
}
@media(max-width:520px){
  .announcement> .shell>span:first-child{max-width:48%!important}.announcement-links{gap:8px!important}
  .brand-emblem{width:60px!important}.brand-type strong{font-size:11.5px!important}
  .v11-hero h1{font-size:46px!important}.v11-hero h2{font-size:17px!important}
  .v11-section{padding:48px 0!important}.v11-why-grid,.v11-guide-grid{grid-template-columns:1fr!important}
  .v11-card-image,.v11-guide-img{height:190px!important}.v11-card-icon{top:168px!important}
  .v11-season-side{grid-template-columns:1fr!important}.v11-season-card{min-height:300px!important}
}

/* ===== V13 interaction + matched imagery ===== */
:root{--header-announcement-h:34px;--header-nav-h:84px;--header-total:118px}
html{scroll-padding-top:calc(var(--header-total) + 18px)!important}
body{padding-top:var(--header-total)!important}
section[id]{scroll-margin-top:calc(var(--header-total) + 18px)!important}
.announcement{position:fixed!important;top:0!important;left:0;right:0;height:var(--header-announcement-h);z-index:4000!important;background:rgba(248,250,248,.985)!important}
.announcement .shell{height:var(--header-announcement-h)!important;min-height:var(--header-announcement-h)!important}
.nav{position:fixed!important;top:var(--header-announcement-h)!important;left:0;right:0;height:var(--header-nav-h)!important;z-index:3999!important;transform:none!important;visibility:visible!important;opacity:1!important}
.nav-inner{height:var(--header-nav-h)!important}
.navlinks{display:flex!important;visibility:visible!important;opacity:1!important}
.navlinks a{visibility:visible!important;opacity:1!important}

/* Content-matched home imagery. */
.v11-why-card:nth-child(1) .v11-card-image{
  background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')!important;
  background-position:center 52%!important
}
.v11-why-card:nth-child(2) .v11-card-image{
  background:none!important;display:grid!important;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;background:#e8efeb!important
}
.v11-why-card:nth-child(2) .v11-card-image .season-tile{display:block;background-size:cover;background-position:center;min-width:0;min-height:0}
.v11-why-card:nth-child(2) .v11-card-image .season-summer{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}
.v11-why-card:nth-child(2) .v11-card-image .season-winter{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/ChangBai_Mountain_Glacier.jpg?width=900')}
.v11-why-card:nth-child(2) .v11-card-image .season-forest{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/Forests_in_Changbai_Mountain.jpg?width=900')}
.v11-why-card:nth-child(2) .v11-card-image .season-autumn{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/%E6%B2%B3%E6%B5%81%E5%92%8C%E6%A3%AE%E6%9E%97_Forest_and_river_-_panoramio.jpg?width=900')}
.v11-why-card:nth-child(3) .v11-card-image{
  background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/Hot_spring_in_Changbai_Mountain.jpg?width=1400')!important;
  background-position:center 57%!important
}
.v11-why-card:nth-child(4) .v11-card-image{
  background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/Changbaishan_Tianchi_from_western_rim.jpg?width=1400')!important;
  background-position:center 44%!important
}

/* Matched article hero system. */
.article-hero.image-hero{position:relative;isolation:isolate;overflow:hidden;color:#fff!important;padding:116px 0 94px!important;background-size:cover!important;background-position:center!important;border-bottom:0!important}
.article-hero.image-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,24,29,.82) 0%,rgba(7,34,39,.61) 46%,rgba(7,31,37,.30) 76%,rgba(7,31,37,.18) 100%);z-index:0;pointer-events:none}
.article-hero.image-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,28,39,.08),rgba(4,28,39,.38));z-index:0;pointer-events:none}
.article-hero.image-hero>.shell{position:relative;z-index:2}
.article-hero.image-hero .crumbs,.article-hero.image-hero .crumbs a,.article-hero.image-hero .eyebrow,.article-hero.image-hero .search-alias,.article-hero.image-hero .dek{color:rgba(255,255,255,.90)!important}
.article-hero.image-hero h1{color:#fff!important;text-shadow:0 4px 28px rgba(0,0,0,.28);max-width:920px}
.article-hero.hero-tianchi{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')!important;background-position:center 48%!important}
.article-hero.hero-hot-springs{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/Hot_spring_in_Changbai_Mountain.jpg?width=1800')!important;background-position:center 55%!important}
.article-hero.hero-west-slope{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/Changbaishan_Tianchi_from_western_rim.jpg?width=1800')!important;background-position:center 46%!important}
.article-hero.hero-seasons{background:#183d37!important;min-height:420px}
.article-hero.hero-seasons .hero-season-grid{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,1fr);z-index:-2}
.article-hero.hero-seasons .hero-season-grid span{background-size:cover;background-position:center}
.article-hero.hero-seasons .hero-season-grid .season-summer{background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg')}
.article-hero.hero-seasons .hero-season-grid .season-winter{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/ChangBai_Mountain_Glacier.jpg?width=1000')}
.article-hero.hero-seasons .hero-season-grid .season-forest{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/Forests_in_Changbai_Mountain.jpg?width=1000')}
.article-hero.hero-seasons .hero-season-grid .season-autumn{background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/%E6%B2%B3%E6%B5%81%E5%92%8C%E6%A3%AE%E6%9E%97_Forest_and_river_-_panoramio.jpg?width=1000')}
.article-hero.hero-seasons:before{background:linear-gradient(90deg,rgba(4,27,31,.88) 0%,rgba(5,31,35,.70) 45%,rgba(5,31,35,.47) 100%)}

@media(max-width:760px){
  :root{--header-announcement-h:36px;--header-nav-h:66px;--header-total:102px}
  body{padding-top:var(--header-total)!important}
  .navlinks{display:none!important;position:fixed!important;top:var(--header-total)!important;left:0!important;right:0!important;padding:18px 22px 24px!important;z-index:5000!important}
  .navlinks.open{display:flex!important}
  .article-hero.image-hero{padding:78px 0 64px!important}
  .article-hero.hero-seasons .hero-season-grid{grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}
}


/* ===== V14 final stability pass ===== */
html{overflow-y:auto!important;scroll-behavior:smooth}
body,body.v11-home{overflow-x:hidden!important;overflow-y:visible!important;min-height:100vh!important}
.announcement,.nav{will-change:auto!important}
.nav{display:block!important}
.nav-inner{overflow:visible!important}
.navlinks{visibility:visible!important;opacity:1!important;pointer-events:auto!important}
.navlinks a{pointer-events:auto!important}
/* Four-item navigation: no duplicate trip-planner link. */
@media(min-width:761px){
  .navlinks{display:flex!important;gap:32px!important}
  .navlinks a{display:inline-flex!important;align-items:center!important;min-height:44px!important}
}
@media(max-width:760px){
  .navlinks{display:none!important}
  .navlinks.open{display:flex!important;visibility:visible!important;opacity:1!important;pointer-events:auto!important}
  .menu-toggle{display:block!important;pointer-events:auto!important}
}
/* Ensure anchor targets never hide behind the fixed two-tier header. */
#explore,#seasons{scroll-margin-top:calc(var(--header-total) + 20px)!important}

/* ===== V16 Korean / Baekdu Mountain expansion ===== */
.ko-hero{min-height:610px;background:linear-gradient(90deg,rgba(5,28,32,.76),rgba(7,39,42,.32)),url('https://upload.wikimedia.org/wikipedia/commons/6/68/Tianchi_Lake_of_Changbai_20130714.jpeg') center 48%/cover no-repeat;display:flex;align-items:center;color:#fff}
.ko-hero .shell{width:100%}.ko-hero h1{font-family:Georgia,'Noto Serif KR',serif;font-size:clamp(54px,7vw,92px);line-height:.98;margin:12px 0 16px;color:#fff}.ko-hero h2{font-size:clamp(20px,2vw,29px);font-weight:500;margin:0 0 18px;color:#fff}.ko-hero p{max-width:720px;font-size:18px;line-height:1.75;color:rgba(255,255,255,.92)}
.ko-alias{letter-spacing:.12em;font-size:13px;font-weight:700}.ko-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.ko-card{display:block;background:#fff;border:1px solid var(--line,#d9dfdb);border-radius:18px;padding:26px;text-decoration:none;box-shadow:0 10px 30px rgba(16,52,42,.06)}.ko-card:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(16,52,42,.10)}.ko-card h3{margin:0 0 8px;font-size:22px;color:#16382e}.ko-card p{margin:0;color:#66736d;line-height:1.65}.ko-name-note{background:#eef4f0;border-left:4px solid #315e4e;padding:20px 22px;border-radius:0 12px 12px 0;margin:26px 0}.ko-section{padding:72px 0}.ko-section.soft{background:#f5f3ed}.ko-article .article-body{font-size:17px;line-height:1.85}.ko-article .article-body h2{font-family:Georgia,'Noto Serif KR',serif}.ko-badge{display:inline-flex;padding:7px 10px;border-radius:999px;background:#e7efe9;color:#315e4e;font-size:12px;font-weight:800;letter-spacing:.06em}
@media(max-width:760px){.ko-hero{min-height:540px}.ko-grid{grid-template-columns:1fr}.ko-section{padding:50px 0}.announcement-links{gap:7px!important}.announcement-links a{font-size:11px!important}}