@font-face{font-family:Cormorant;src:url(/assets/fonts/cormorant-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:Cormorant;src:url(/assets/fonts/cormorant-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:Inter;src:url(/assets/fonts/inter-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url(/assets/fonts/inter-500.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:Inter;src:url(/assets/fonts/inter-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:Brush;src:url(/assets/fonts/mashanzheng.woff2) format("woff2");font-display:swap}
@font-face{font-family:SongSC;src:url(/assets/fonts/notoserifsc-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:SongSC;src:url(/assets/fonts/notoserifsc-600.woff2) format("woff2");font-weight:600;font-display:swap}

/* Shuimo's own palette: rice paper, pine-soot ink, cinnabar seal. Light only, like the app. */
:root{
  --paper:#F3EDE0;--paper-deep:#E8DFCC;--paper-edge:#DDD3C1;
  --ink:#1C1915;--ink-2:#3B3631;--muted:#6A6259;--wash:#8D857B;
  --seal:#B23A2E;--seal-deep:#922D23;
  --serif:Cormorant,"Iowan Old Style",Palatino,Georgia,serif;
  --sans:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  --zh:SongSC,"Songti SC","Noto Serif SC",serif;
  --brush:Brush,"Kaiti SC",STKaiti,serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --r:14px;
}
*{box-sizing:border-box}
html{background:var(--paper);color:var(--ink-2);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:400 17px/1.65 var(--sans);overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
:focus-visible{outline:2px solid var(--seal);outline-offset:3px;border-radius:4px}
[lang=zh]{font-family:var(--zh)}
h1,h2{font-family:var(--serif);font-weight:500;color:var(--ink);letter-spacing:-.01em;margin:0}
h1 em,h2 em{font-style:italic;font-weight:500}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:8px 14px;border-radius:8px;z-index:30}
.skip:focus{left:12px}

/* Paper grain sits on a fixed layer so scrolling never repaints it. */
.grain{position:fixed;inset:0;pointer-events:none;z-index:20;background:url(/assets/img/paper_grain.webp);opacity:.07;mix-blend-mode:multiply}

/* Nav */
.nav{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:32px;height:68px;padding:0 clamp(20px,4vw,56px);background:color-mix(in srgb,var(--paper) 86%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-bottom-color:var(--paper-edge)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.seal-mark{width:34px;height:34px;display:grid;place-items:center;background:var(--seal);color:#F7EFE3;font:400 21px/1 var(--brush);border-radius:4px;transform:rotate(-4deg);box-shadow:inset 0 0 0 2px #F7EFE326}
.brand-name{font:500 22px/1 var(--serif);color:var(--ink)}
.brand-name span{font-size:18px;margin-left:2px}
.nav nav{display:flex;gap:28px;margin-left:auto}
.nav nav a{text-decoration:none;font-size:15px;color:var(--muted);transition:color .2s}
.nav nav a:hover{color:var(--ink)}
.nav-cta{text-decoration:none;font-weight:500;font-size:15px;color:var(--paper);background:var(--ink);padding:9px 18px;border-radius:999px;transition:transform .2s var(--ease),background .2s}
.nav-cta:hover{background:var(--seal-deep)}
.nav-cta:active{transform:scale(.97)}
@media (max-width:820px){.nav nav{display:none}.nav-cta{margin-left:auto}}

/* Hero */
.hero{position:relative;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(24px,4vw,64px);min-height:calc(100dvh - 68px);padding:clamp(24px,5vw,72px) clamp(20px,6vw,96px) clamp(180px,22vw,300px);overflow:hidden}
.hero-copy{position:relative;z-index:2;max-width:620px}
.hero h1{font-size:clamp(46px,6.4vw,92px);line-height:1.02;padding-bottom:.06em}
.hero h1 em{color:var(--seal)}
.lede{font-size:clamp(17px,1.5vw,20px);color:var(--muted);max-width:36ch;margin:22px 0 34px}
.invite{display:inline-flex;align-items:center;gap:10px;margin:0 0 22px;padding:7px 16px 7px 7px;border-radius:999px;background:var(--paper-deep);border:1px solid var(--paper-edge);font-size:15px;color:var(--ink);animation:rise .9s var(--ease) both}
.invite[hidden]{display:none}
.invite-seal{width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:var(--seal);color:#F7EFE3;font:400 15px/1 var(--brush)}
.hero-art{position:relative;z-index:2;display:flex;justify-content:center}
.paper-sheet{position:relative;width:min(300px,62vw);aspect-ratio:1/2;padding:22px;background:linear-gradient(180deg,#F8F3E8,#EFE7D6);border-radius:3px;box-shadow:0 1px 0 #fff8 inset,0 30px 60px -30px #5a4a3266,0 8px 18px -10px #5a4a3240;transform:rotate(1.6deg);animation:sheet 1.4s var(--ease) both}
.paper-sheet::before,.paper-sheet::after{content:"";position:absolute;left:-10px;right:-10px;height:14px;border-radius:7px;background:linear-gradient(180deg,#5b4632,#2e231a);box-shadow:0 4px 10px -4px #0006}
.paper-sheet::before{top:-8px}.paper-sheet::after{bottom:-8px}
.hanzi{width:100%;height:100%;overflow:visible}
.hanzi .ghost{fill:#1c191512}
.hanzi .ink{fill:none;stroke:var(--ink);stroke-linecap:round;stroke-linejoin:round}
.hero-seal{position:absolute;right:-18px;bottom:16%;writing-mode:vertical-rl;font:400 22px/1 var(--brush);color:#F7EFE3;background:var(--seal);padding:10px 6px;border-radius:3px;box-shadow:inset 0 0 0 2px #F7EFE333;opacity:0;transform:scale(1.6) rotate(-8deg)}
.hero-seal.stamped{animation:stamp .5s cubic-bezier(.3,1.6,.5,1) forwards}

.mountains{position:absolute;inset:auto 0 0 0;height:clamp(240px,34vw,480px);z-index:1;pointer-events:none}
/* The art is a white mask (the app tints it too): ink through the mask, lighter with distance. */
.mountains .m{position:absolute;left:50%;width:max(1400px,112%);aspect-ratio:1170/900;transform:translateX(-50%);-webkit-mask:var(--art) center bottom/100% auto no-repeat;mask:var(--art) center bottom/100% auto no-repeat}
.m-far{--art:url(/assets/img/mountains_far.webp);bottom:-20%;background:linear-gradient(180deg,#a49b8e,#d9d0c0 70%);opacity:.75}
.m-mid{--art:url(/assets/img/mountains_mid.webp);bottom:-27%;background:linear-gradient(180deg,#6f675d,#c9bfae 75%);opacity:.8}
.m-near{--art:url(/assets/img/mountains_near.webp);bottom:-33%;background:linear-gradient(180deg,#2f2a24,#8d857b 70%,#e7dfcf)}
.mist{position:absolute;width:140%;max-width:none;left:-20%;opacity:.55}
.mist-a{bottom:30%;animation:drift 60s linear infinite alternate}
.mist-b{bottom:8%;opacity:.7;animation:drift 44s linear infinite alternate-reverse}
@media (max-width:860px){
  .hero{grid-template-columns:1fr;text-align:left;padding-top:28px}
  .hero-art{order:-1}
  .paper-sheet{width:min(128px,34vw);padding:14px}
  .hero h1{font-size:clamp(40px,11vw,56px)}
  .lede{margin-bottom:26px}
}

/* Store buttons */
.store-row{display:flex;flex-wrap:wrap;gap:12px}
.store-row-center{justify-content:center}
.store{display:inline-flex;align-items:center;gap:12px;min-width:190px;padding:11px 22px 11px 18px;border-radius:12px;text-decoration:none;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .2s}
.store svg{width:24px;height:24px;flex:none}
.store span{display:flex;flex-direction:column;font:600 18px/1.1 var(--sans)}
.store small{font:500 11px/1.3 var(--sans);opacity:.75;letter-spacing:.02em}
.store-dark{background:var(--ink);color:var(--paper);box-shadow:0 10px 24px -14px #1c1915aa}
.store-light{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--ink)}
.store:hover{transform:translateY(-2px)}
.store-dark:hover{background:var(--seal-deep)}
.store-light:hover{background:var(--paper-deep)}
.store:active{transform:translateY(0) scale(.98)}

/* Translate */
section{position:relative}
.translate{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(32px,7vw,120px);align-items:center;padding:clamp(80px,10vw,150px) clamp(20px,8vw,140px)}
.phone{margin:0;justify-self:center;width:min(320px,70vw);border-radius:38px;padding:10px;background:#1c1915;box-shadow:0 40px 80px -40px #3b2e1f80,0 0 0 1px #0002}
.phone img{border-radius:29px}
.phone-tilt{transform:rotate(-3deg)}
.translate h2,.dramas h2,.write h2{font-size:clamp(36px,4.2vw,60px);line-height:1.06;max-width:15ch}
.translate-copy>p,.dramas-copy>p,.write-copy>p{color:var(--muted);max-width:46ch;margin:20px 0 0}
.demo{margin-top:40px;max-width:480px;border-radius:var(--r);background:var(--paper-deep);padding:22px 24px;box-shadow:inset 0 0 0 1px var(--paper-edge)}
.demo-input{display:flex;align-items:center;gap:2px;padding-bottom:14px;border-bottom:1px solid var(--paper-edge);color:var(--ink);font-size:18px;min-height:44px}
.caret{width:2px;height:22px;background:var(--seal);animation:blink 1s steps(1) infinite}
.demo-out{padding-top:16px;min-height:110px;transition:opacity .4s var(--ease),transform .5s var(--ease)}
.demo-out.hide{opacity:0;transform:translateY(8px)}
.demo-zh{margin:0;font-size:clamp(30px,3.2vw,40px);color:var(--ink);letter-spacing:.06em}
.demo-py{margin:4px 0 0;color:var(--seal);font-size:17px}
@media (max-width:860px){.translate{grid-template-columns:1fr}.translate .phone{order:2}}

/* Scroll gallery: a hand scroll that unrolls as it enters */
.scroll-gallery{padding:clamp(40px,6vw,80px) 0 clamp(80px,10vw,140px)}
.gallery-title{font-size:clamp(34px,4vw,56px);line-height:1.08;padding:0 clamp(20px,8vw,140px);max-width:22ch;margin-bottom:44px}
.scroll-paper{position:relative;margin:0 clamp(12px,3vw,40px);padding:44px 0 36px;background:linear-gradient(180deg,#F7F1E5,#ECE3D1);border-radius:6px;box-shadow:0 30px 60px -40px #5a4a3266;clip-path:inset(0 50% 0 50%);transition:clip-path 1.6s var(--ease)}
.scroll-gallery.in .scroll-paper{clip-path:inset(-20px -20px -20px -20px)}
.scroll-paper::before,.scroll-paper::after{content:"";position:absolute;top:-10px;bottom:-10px;width:16px;border-radius:8px;background:linear-gradient(90deg,#2e231a,#5b4632 50%,#2e231a);z-index:2}
.scroll-paper::before{left:-6px}.scroll-paper::after{right:-6px}
.screens{list-style:none;margin:0;padding:0 clamp(24px,5vw,64px);display:grid;grid-auto-flow:column;grid-auto-columns:minmax(220px,260px);gap:clamp(20px,3vw,40px);overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:var(--wash) transparent;padding-bottom:12px}
.screen{scroll-snap-align:center}
.screen img{border-radius:22px;box-shadow:0 0 0 7px #1c1915,0 24px 40px -24px #3b2e1f99;margin:7px}
.screen p{font-size:15px;color:var(--muted);margin:22px 4px 0;max-width:30ch}
.screen strong{color:var(--ink);font-weight:600}

/* Dramas */
.dramas{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,100px);align-items:center;padding:clamp(80px,10vw,150px) clamp(20px,8vw,140px)}
.drama-art{position:relative;height:clamp(420px,46vw,640px)}
.drama-art .d{position:absolute;width:42%;border-radius:10px;box-shadow:0 30px 50px -30px #2e231a99;transition:transform 1.4s var(--ease),opacity 1.2s var(--ease);opacity:0}
.d1{left:0;top:12%;transform:translateY(60px) rotate(-4deg)}
.d2{left:29%;top:0;z-index:2;transform:translateY(90px)}
.d3{left:58%;top:16%;transform:translateY(120px) rotate(4deg)}
.drama-art.in .d{opacity:1}
.drama-art.in .d1{transform:rotate(-4deg)}
.drama-art.in .d2{transform:none;transition-delay:.12s}
.drama-art.in .d3{transform:rotate(4deg);transition-delay:.24s}
.series-name{font:400 clamp(30px,3vw,40px)/1 var(--brush);color:var(--seal);margin:0 0 18px;letter-spacing:.08em}
@media (max-width:860px){.dramas{grid-template-columns:1fr}.drama-art{height:clamp(320px,90vw,520px)}}

/* Write */
.write{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,100px);align-items:center;padding:clamp(80px,10vw,150px) clamp(20px,8vw,140px)}
.write-stage{border-radius:var(--r);padding:clamp(24px,4vw,48px);background:var(--paper-deep) url(/assets/img/stroke_rule.webp) no-repeat center 92%/70% auto;box-shadow:inset 0 0 0 1px var(--paper-edge)}
.hanzi-write{aspect-ratio:2/1;height:auto}
.hanzi-write .grid{stroke:#b23a2e33;stroke-width:4;stroke-dasharray:18 18;fill:none}
.write-gloss{margin:18px 0 0;text-align:center;color:var(--muted)}
.write-gloss span{color:var(--ink);margin-right:6px}
.replay{margin-top:32px;font:500 15px/1 var(--sans);color:var(--paper);background:var(--ink);border:0;padding:14px 26px;border-radius:999px;cursor:pointer;transition:transform .2s var(--ease)}
.replay:hover{transform:translateY(-2px)}
.replay:active{transform:scale(.97)}
@media (max-width:860px){.write{grid-template-columns:1fr}}

/* Tones */
.tones{padding:clamp(80px,10vw,150px) clamp(20px,8vw,140px);text-align:center}
.tones h2{font-size:clamp(36px,4.2vw,60px);line-height:1.06;max-width:18ch;margin:0 auto}
.tones-lede{color:var(--muted);max-width:52ch;margin:20px auto 0}
.tone-lines{width:min(1100px,100%);margin:56px auto 0;overflow:visible}
.tone path{fill:none;stroke:var(--ink);stroke-width:14;stroke-linecap:round;stroke-dasharray:var(--len,400);stroke-dashoffset:var(--len,400);transition:stroke-dashoffset 1.1s var(--ease)}
.tone text{font:400 42px var(--sans);fill:var(--ink);text-anchor:middle;opacity:0;transition:opacity .8s var(--ease)}
.tone .tone-gloss{font-size:22px;fill:var(--muted)}
.tone-lines.in path{stroke-dashoffset:0}
.tone-lines.in text{opacity:1}
.tone-lines .t2 path,.tone-lines .t2 text{transition-delay:.25s}
.tone-lines .t3 path,.tone-lines .t3 text{transition-delay:.5s}
.tone-lines .t4 path,.tone-lines .t4 text{transition-delay:.75s}
.tone-lines .t3 path{stroke:var(--seal)}

/* Closing */
.closing{padding:clamp(80px,10vw,150px) 20px clamp(100px,12vw,170px);text-align:center}
.enso-wrap{position:relative;width:min(300px,62vw);margin:0 auto 40px}
.enso{width:100%;aspect-ratio:1;background:var(--ink);-webkit-mask:url(/assets/img/enso.webp) center/contain no-repeat;mask:url(/assets/img/enso.webp) center/contain no-repeat;opacity:0;transform:rotate(-80deg) scale(.9);transition:transform 2s var(--ease),opacity 1.4s var(--ease)}
.enso-wrap.in .enso{opacity:.85;transform:none}
.closing-char{position:absolute;inset:0;display:grid;place-items:center;font:400 clamp(80px,12vw,130px)/1 var(--brush);color:var(--ink);opacity:0;filter:blur(8px);transition:opacity 1.2s .8s var(--ease),filter 1.4s .8s var(--ease)}
.enso-wrap.in .closing-char{opacity:1;filter:none}
.closing h2{font-size:clamp(38px,4.6vw,64px);line-height:1.06}
.closing p{color:var(--muted);max-width:44ch;margin:18px auto 34px}

/* Footer */
.foot{display:flex;flex-wrap:wrap;align-items:center;gap:20px 36px;padding:36px clamp(20px,6vw,96px) 48px;border-top:1px solid var(--paper-edge);color:var(--muted);font-size:14px}
.foot nav{display:flex;gap:24px;margin-left:auto}
.foot nav a{text-decoration:none}
.foot nav a:hover{color:var(--ink)}
.foot p{margin:0}
.foot .seal-mark{width:28px;height:28px;font-size:17px}
.foot .brand-name{font-size:19px}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity 1s var(--ease),transform 1.1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.hero .reveal{transition-delay:calc(var(--i,0) * 120ms + .2s)}

@keyframes rise{from{opacity:0;transform:translateY(12px)}}
@keyframes sheet{from{opacity:0;transform:translateY(40px) rotate(6deg)}}
@keyframes stamp{to{opacity:1;transform:rotate(-4deg)}}
@keyframes drift{from{transform:translateX(-6%)}to{transform:translateX(6%)}}
@keyframes blink{50%{opacity:0}}

/* Scroll-driven parallax where the browser supports it; static elsewhere. */
@supports (animation-timeline:scroll()){
  @media (prefers-reduced-motion:no-preference){
    .m-far{animation:pfar linear both;animation-timeline:scroll();animation-range:0 100vh}
    .m-mid{animation:pmid linear both;animation-timeline:scroll();animation-range:0 100vh}
    .hero-art{animation:part linear both;animation-timeline:scroll();animation-range:0 100vh}
    .phone-tilt{animation:ptilt linear both;animation-timeline:view();animation-range:entry 0% exit 100%}
  }
}
@keyframes pfar{to{transform:translate(-50%,-90px)}}
@keyframes pmid{to{transform:translate(-50%,-40px)}}
@keyframes part{to{transform:translateY(-70px)}}
@keyframes ptilt{from{transform:rotate(-7deg) translateY(40px)}to{transform:rotate(1deg) translateY(-40px)}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal,.drama-art .d,.enso,.closing-char,.tone text{opacity:1!important;transform:none!important;filter:none!important}
  .scroll-paper{clip-path:none}
  .tone path{stroke-dashoffset:0}
  .hero-seal{opacity:1;transform:rotate(-4deg)}
}

/* Legal pages */
.legal{max-width:760px;margin:0 auto;padding:clamp(40px,7vw,90px) 24px 100px}
.legal h1{font-size:clamp(44px,6vw,68px);line-height:1.04}
.legal .meta{color:var(--muted);font-size:15px;margin:14px 0 36px}
.legal h2{font-size:30px;margin:52px 0 10px}
.legal p,.legal li{color:var(--ink-2);margin:0 0 14px}
.legal ul{padding-left:22px}
.legal a{color:var(--seal)}
.legal .card{background:var(--paper-deep);border-radius:var(--r);padding:20px 24px;margin:26px 0;box-shadow:inset 0 0 0 1px var(--paper-edge)}
.legal dt{font-weight:600;color:var(--ink);margin-top:18px}
.legal dd{margin:4px 0 0}
.notfound{min-height:70dvh;display:grid;place-content:center;text-align:center;padding:40px 20px}
.notfound .big{font:400 140px/1 var(--brush);color:var(--ink);margin:0}
.notfound p{color:var(--muted)}