: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}