:root{color-scheme:dark;background:#071b29;font-family:Noto Serif SC,Songti SC,STSong,Microsoft YaHei,serif}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden}button,a{font:inherit}button{color:inherit}.snow-realm{color:#eff7f2;isolation:isolate;user-select:none;background:#0b2739;min-width:320px;min-height:520px;position:fixed;inset:0;overflow:hidden}#jiangxue-canvas{touch-action:none;cursor:crosshair;display:block;position:absolute;inset:0}.paper-grain{pointer-events:none;opacity:.18;mix-blend-mode:soft-light;z-index:1;background-image:repeating-radial-gradient(circle at 20% 30%,#0000 0 2px,#ffffff26 3px 4px),repeating-linear-gradient(107deg,#0000 0 5px,#0000001c 6px 7px);background-size:13px 17px,19px 23px;position:absolute;inset:0}.game-topbar{z-index:20;top:max(18px, env(safe-area-inset-top));pointer-events:none;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;display:grid;position:absolute;left:24px;right:24px}.glass-button{color:#f4faf7e6;backdrop-filter:blur(14px)saturate(1.15);cursor:pointer;pointer-events:auto;background:#091f2c75;border:1px solid #def1ee40;border-radius:999px;justify-content:center;align-items:center;gap:7px;width:max-content;min-height:42px;padding:9px 14px;text-decoration:none;transition:transform .25s,background .25s,border-color .25s;display:inline-flex;box-shadow:inset 0 1px #ffffff1c,0 8px 30px #030d1526}.glass-button:hover,.glass-button:focus-visible{background:#1a434f9e;border-color:#b7eeeb85;outline:none;transform:translateY(-2px)}.glass-button b{letter-spacing:.08em;font-size:13px;font-weight:600}.back-button span{font:300 28px/16px system-ui}.top-actions{justify-self:end;gap:9px;display:flex}.level-mark{color:#e6f1ecb8;letter-spacing:.24em;white-space:nowrap;text-shadow:0 2px 10px #092331;align-items:center;gap:12px;font-size:13px;display:flex}.level-mark i{background:linear-gradient(90deg,#0000,#e2f0eb8c);width:34px;height:1px}.level-mark i:last-child{transform:scaleX(-1)}.phase-trail{z-index:10;pointer-events:none;align-items:center;width:min(560px,50vw);display:flex;position:absolute;top:77px;left:50%;transform:translate(-50%)}.phase-trail>span{opacity:.46;place-items:center;gap:5px;min-width:54px;transition:opacity .5s,transform .5s;display:grid;position:relative}.phase-trail>span i{background:#0a233073;border:1px solid #dbefeb59;border-radius:50%;place-items:center;width:32px;height:32px;font-size:13px;font-style:normal;display:grid;box-shadow:0 0 0 4px #d8f4ef0a}.phase-trail>span b{letter-spacing:.12em;font-size:10px;font-weight:500}.phase-trail>em{background:#d9edea38;flex:1;height:1px;margin:0 5px 20px;overflow:hidden}.phase-trail>span.is-active{opacity:1;transform:translateY(2px)}.phase-trail>span.is-active i{color:#12333f;background:#d7efea;border-color:#fff;box-shadow:0 0 24px #a7ece894}.phase-trail>span.is-complete{opacity:.85}.phase-trail>span.is-complete i{color:#173f48;background:#90cbc8;border-color:#d8f5ef}.poem-scroll{z-index:8;color:#17343a;pointer-events:none;background:linear-gradient(#e6ebdef0,#cdd8cceb),repeating-linear-gradient(0deg,#0000 0 5px,#485b4b14 6px);border:1px solid #f8fbefa6;border-radius:4px 4px 16px 16px;width:218px;padding:27px 26px 25px;position:absolute;top:148px;right:clamp(26px,5vw,82px);transform:rotate(.6deg);box-shadow:0 22px 65px #04131d4d,inset 0 0 35px #647e6e29}.poem-scroll:before,.poem-scroll:after{content:"";background:#7d9587;border-radius:99px;height:10px;position:absolute;left:-8px;right:-8px;box-shadow:inset 0 2px 4px #ffffff4d,0 3px 8px #05171d4d}.poem-scroll:before{top:-5px}.poem-scroll:after{bottom:-5px}.scroll-kicker{color:#647c72;letter-spacing:.32em;margin:0 0 3px;font-size:9px}.poem-scroll h1{letter-spacing:.2em;margin:0;font-size:34px;font-weight:500}.poem-scroll .poet{color:#6d8177;letter-spacing:.28em;margin:5px 0 19px;font-size:12px}.scroll-seal{color:#f6e8d6;background:#8d3f34;border:2px solid #9c5145;place-items:center;width:29px;height:29px;font-size:13px;display:grid;position:absolute;top:27px;right:19px;transform:rotate(5deg)}.poem-lines{gap:10px;display:grid}.poem-lines p{color:#0000;letter-spacing:.18em;white-space:nowrap;height:25px;margin:0;font-size:17px;position:relative}.poem-lines p:before{content:"·····";color:#2d454247;letter-spacing:.5em;position:absolute;inset:0}.poem-lines p span{z-index:1;color:#18363b;opacity:0;filter:blur(5px);transition:opacity .9s,filter .9s,transform .9s;position:relative;transform:translateY(8px)}.poem-lines p.is-revealed:before{opacity:0}.poem-lines p.is-revealed span{opacity:1;filter:none;transform:none}.poem-scroll>small{color:#7a8b82;letter-spacing:.12em;border-top:1px solid #344c4629;margin-top:19px;padding-top:11px;font-size:9px;display:block}.mission-card{z-index:12;left:50%;bottom:max(27px, env(safe-area-inset-bottom));backdrop-filter:blur(20px)saturate(1.2);opacity:0;pointer-events:none;background:linear-gradient(120deg,#071e2bdb,#193b43bf);border:1px solid #def2ee47;border-radius:21px;grid-template-columns:48px minmax(280px,470px) auto;align-items:center;gap:15px;width:min(720px,100vw - 40px);padding:14px 16px;transition:opacity .5s,transform .5s;display:grid;position:absolute;transform:translate(-50%,-12px);box-shadow:0 18px 60px #020e175c,inset 0 1px #ffffff1a}.mission-card.is-visible{opacity:1;pointer-events:auto;transform:translate(-50%)}.mission-icon{color:#d8f5ed;background:#6bbebc21;border:1px solid #c9efeb59;border-radius:14px;place-items:center;width:44px;height:44px;font-size:21px;display:grid;box-shadow:inset 0 0 15px #bdf5ef1f}.mission-copy{min-width:0}.mission-copy>span{color:#8fc9c6;letter-spacing:.18em;margin-bottom:2px;font-size:10px;font-weight:700;display:block}.mission-copy h2{letter-spacing:.12em;margin:0 10px 0 0;font-size:clamp(18px,2vw,23px);font-weight:500;display:inline}.mission-copy p{color:#e4f0ebba;margin:0;font-size:12px;display:inline}.mission-progress{background:#dff2ee1f;border-radius:99px;width:100%;height:3px;margin-top:10px;overflow:hidden}.mission-progress i{border-radius:inherit;background:linear-gradient(90deg,#75c7c9,#e7dc9b);width:0;height:100%;transition:width .18s ease-out;display:block;box-shadow:0 0 11px #9ee5df}.hint-button{color:#c9e5df;letter-spacing:.08em;cursor:pointer;background:#e1f2ea12;border:1px solid #e1f2ea33;border-radius:999px;min-height:38px;padding:0 14px;font-size:11px;transition:background .2s,transform .2s}.hint-button:hover,.hint-button:focus-visible{background:#c2eee829;outline:none;transform:translateY(-2px)}.calm-meter{color:#dcf0eb8c;letter-spacing:.12em;align-items:center;gap:8px;margin-top:7px;font-size:9px;display:none}.calm-meter.is-visible{display:flex}.calm-meter>i{background:#ffffff1f;border-radius:99px;flex:1;height:4px;overflow:hidden}.calm-meter>i b{background:linear-gradient(90deg,#79d1cf,#ffe08f);width:0;height:100%;display:block;box-shadow:0 0 12px #e8d47f}.hint-bubble{z-index:14;backdrop-filter:blur(15px);opacity:0;pointer-events:none;background:#09222ec7;border:1px solid #d7f2ee4d;border-radius:18px;align-items:center;gap:11px;width:max-content;max-width:min(520px,100vw - 44px);padding:10px 16px 10px 10px;transition:opacity .35s,transform .35s;display:flex;position:absolute;bottom:127px;left:50%;transform:translate(-50%,10px)scale(.96);box-shadow:0 14px 45px #02101940}.hint-bubble.is-visible{opacity:1;transform:translate(-50%)scale(1)}.hint-bubble p{color:#ecf7f3e0;margin:0;font-size:12px;line-height:1.55}.snow-spirit{background:radial-gradient(circle at 35% 30%,#fff,#9ad7d7);border-radius:50% 50% 46% 54%;flex:0 0 35px;place-items:center;width:35px;height:35px;display:grid;position:relative;box-shadow:0 0 18px #afeeeb8c}.snow-spirit:before,.snow-spirit:after{content:"";background:#31565c;border-radius:50%;width:3px;height:4px}.snow-spirit:before{transform:translate(-5px,1px)}.snow-spirit:after{position:absolute;transform:translate(5px,1px)}.snow-spirit i{border-bottom:1px solid #31565c;border-radius:50%;width:8px;height:4px;position:absolute;bottom:8px}.spell-word{z-index:30;color:#effcf6;letter-spacing:.24em;text-shadow:0 0 18px #8ee8e7,0 4px 30px #071f2e;opacity:0;pointer-events:none;font-size:clamp(35px,6vw,70px);font-weight:500;position:absolute;top:42%;left:50%;transform:translate(-50%,-50%)scale(.72)}.spell-word.is-casting{animation:1.35s cubic-bezier(.19,.8,.25,1) both cast-word}@keyframes cast-word{0%{opacity:0;filter:blur(12px);transform:translate(-50%,-30%)scale(.7)}28%,68%{opacity:1;filter:blur();transform:translate(-50%,-50%)scale(1)}to{opacity:0;filter:blur(4px);transform:translate(-50%,-72%)scale(1.12)}}.screen-layer{z-index:40;backdrop-filter:blur(5px);background:radial-gradient(circle at 50% 38%,#30525861,#04131ed6);place-items:center;padding:78px 22px 28px;transition:opacity .65s,visibility .65s;display:grid;position:absolute;inset:0}.screen-layer.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.story-card,.completion-card{text-align:center;backdrop-filter:blur(24px);scrollbar-width:thin;background:linear-gradient(145deg,#0c2733eb,#1e3d42d9);border:1px solid #e3f2ec4d;border-radius:30px 8px;width:min(600px,94vw);max-height:calc(100dvh - 100px);padding:clamp(30px,5vw,52px);position:relative;overflow:auto;box-shadow:0 35px 100px #000c158a,inset 0 1px #ffffff26}.story-card:before,.completion-card:before{content:"";pointer-events:none;border:1px solid #d7efe91c;border-radius:22px 5px;position:absolute;inset:10px}.chapter-label{color:#89c7c4;letter-spacing:.28em;margin:0 0 18px;font-size:11px;font-weight:700}.title-snowflake{color:#d5f0eb;text-shadow:0 0 30px #a3e4e1;margin-bottom:4px;font-size:38px;animation:9s linear infinite snow-turn}@keyframes snow-turn{to{transform:rotate(360deg)}}.story-card h2,.completion-card h2{color:#f3f8f1;letter-spacing:.18em;text-shadow:0 5px 25px #000f1759;margin:0;font-size:clamp(36px,7vw,58px);font-weight:500}.story-lead{color:#d9ece6;letter-spacing:.08em;margin:20px 0 8px;font-size:16px}.story-text{color:#e0eee8ad;max-width:440px;margin:0 auto;font-size:13px;line-height:1.9}.magic-preview{justify-content:center;gap:clamp(12px,4vw,28px);margin:27px 0;display:flex}.magic-preview span{gap:6px;min-width:48px;display:grid}.magic-preview i{color:#c8ebe6;background:#b7e6e114;border:1px solid #c0e6e247;border-radius:50%;place-items:center;width:43px;height:43px;margin:auto;font-size:19px;font-style:normal;display:grid}.magic-preview b{color:#e0efea9e;letter-spacing:.15em;font-size:10px;font-weight:500}.primary-button,.secondary-button{color:#123640;letter-spacing:.15em;cursor:pointer;background:linear-gradient(110deg,#dff1e8,#a9d8d4);border:1px solid #f5fcf4b3;border-radius:999px;justify-content:center;align-items:center;gap:22px;min-height:54px;padding:0 30px;font-weight:700;transition:transform .25s,box-shadow .25s;display:inline-flex;position:relative;box-shadow:0 12px 35px #409d9d47,inset 0 1px #fff}.primary-button:hover,.primary-button:focus-visible,.secondary-button:hover,.secondary-button:focus-visible{outline:none;transform:translateY(-3px)scale(1.02);box-shadow:0 16px 40px #49b4b166,inset 0 1px #fff}.primary-button i{font-size:22px;font-style:normal}.story-card>small{color:#d9ebe56b;margin-top:15px;font:10px/1.5 system-ui,sans-serif;display:block}.intro-stars{pointer-events:none;position:absolute;inset:0}.intro-stars i{background:#d9f5ef;border-radius:50%;width:5px;height:5px;animation:4s ease-in-out infinite float-star;position:absolute;box-shadow:0 0 18px 5px #a9ebe673}.intro-stars i:first-child{top:25%;left:18%}.intro-stars i:nth-child(2){animation-delay:-1.3s;top:33%;right:17%}.intro-stars i:nth-child(3){animation-delay:-2.4s;bottom:17%;left:28%}@keyframes float-star{50%{opacity:.45;transform:translateY(-17px)scale(1.5)}}.completion-screen{background:radial-gradient(circle at 50% 40%,#2e5e5b66,#03101be8)}.completion-card{width:min(680px,95vw);padding-top:38px}.completion-card h2{letter-spacing:.11em;margin-top:2px;font-size:clamp(27px,4vw,41px)}.reward-seal{color:#f5e9d5;background:#93483e;border:2px solid #c27b65;place-items:center;width:76px;height:76px;margin:0 auto 17px;display:grid;position:relative;transform:rotate(-4deg);box-shadow:0 0 0 5px #8f42392e,0 10px 28px #0000003b}.reward-seal:before{content:"";border:1px solid #ffebd580;position:absolute;inset:5px}.reward-seal span{letter-spacing:.13em;font-size:17px;line-height:1.05}.reward-seal i{font-size:9px;font-style:normal;position:absolute;bottom:4px;right:5px}.final-poem{color:#edf7f0;border-top:1px solid #dff2ea29;border-bottom:1px solid #dff2ea29;margin:20px auto 15px;padding:16px 20px}.final-poem p{letter-spacing:.16em;margin:4px 0;font-size:clamp(17px,2.5vw,22px)}.final-poem small{color:#8cb8b3;letter-spacing:.18em;margin-top:9px;font-size:11px;display:block}.poem-meaning{text-align:left;background:#c6e5de14;border-radius:15px;max-width:535px;margin:0 auto 18px;padding:13px 18px}.poem-meaning b{color:#e9d98f;letter-spacing:.18em;font-size:11px}.poem-meaning p{color:#e5f0ebb8;margin:6px 0 0;font-size:12px;line-height:1.75}.completion-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;display:flex}.primary-button.compact,.secondary-button{min-height:44px;padding:0 22px;font-size:12px}.secondary-button{color:#d8eee9;box-shadow:none;background:#cfece614;border-color:#daefea47}.text-link{color:#91c6c2;letter-spacing:.08em;padding:10px 8px;font-size:11px;text-decoration:none}.text-link:hover,.text-link:focus-visible{color:#e4f4ef;outline:none}.keyboard-tip{z-index:9;color:#e3f2ee66;letter-spacing:.06em;pointer-events:none;margin:0;font:10px/1.4 system-ui,sans-serif;position:absolute;bottom:22px;left:25px}@media (width<=900px){.level-mark{display:none}.game-topbar{grid-template-columns:1fr 1fr}.poem-scroll{width:185px;padding:23px 20px 22px;right:20px}.poem-scroll h1{font-size:28px}.poem-lines p{font-size:14px}.phase-trail{width:min(520px,60vw)}.keyboard-tip{display:none}}@media (width<=680px){.game-topbar{top:max(10px, env(safe-area-inset-top));left:12px;right:12px}.glass-button{min-height:38px;padding:8px 11px}.glass-button b{display:none}.back-button span{font-size:27px}.top-actions{gap:6px}.phase-trail{width:calc(100vw - 28px);top:60px}.phase-trail>span{min-width:46px}.phase-trail>span i{width:28px;height:28px;font-size:11px}.phase-trail>span b{font-size:9px}.poem-scroll{opacity:.88;width:146px;padding:18px 13px 17px;top:106px;right:10px}.poem-scroll:before,.poem-scroll:after{height:7px;left:-4px;right:-4px}.poem-scroll h1{font-size:23px}.poem-scroll .poet{margin:3px 0 12px;font-size:9px}.poem-lines{gap:5px}.poem-lines p{height:20px;font-size:12px}.poem-scroll>small,.scroll-kicker{display:none}.scroll-seal{width:23px;height:23px;font-size:10px;top:17px;right:10px}.mission-card{bottom:max(10px, env(safe-area-inset-bottom));border-radius:17px;grid-template-columns:38px 1fr auto;gap:9px;width:calc(100vw - 20px);padding:11px}.mission-icon{border-radius:11px;width:36px;height:36px;font-size:17px}.mission-copy>span{font-size:8px}.mission-copy h2{font-size:17px;display:block}.mission-copy p{text-overflow:ellipsis;white-space:nowrap;margin-top:2px;font-size:9px;display:block;overflow:hidden}.mission-progress{margin-top:6px}.hint-button{border-radius:12px;max-width:45px;min-height:34px;padding:0 6px;font-size:9px;line-height:1.25}.hint-bubble{max-width:calc(100vw - 24px);padding:8px 12px 8px 8px;bottom:112px}.hint-bubble p{font-size:10px}.snow-spirit{flex-basis:29px;width:29px;height:29px}.story-card,.completion-card{border-radius:24px 7px;max-height:calc(100dvh - 45px);padding:27px 21px}.chapter-label{margin-bottom:12px;font-size:9px}.title-snowflake{font-size:29px}.story-card h2{font-size:36px}.story-lead{margin-top:14px;font-size:14px}.story-text{font-size:11px;line-height:1.7}.magic-preview{gap:8px;margin:20px 0}.magic-preview i{width:36px;height:36px;font-size:15px}.primary-button{min-height:48px;padding:0 24px}.completion-card h2{font-size:25px}.reward-seal{width:61px;height:61px;margin-bottom:12px}.reward-seal span{font-size:14px}.final-poem{margin:14px auto 10px;padding:11px 7px}.final-poem p{font-size:15px}.poem-meaning{margin-bottom:12px;padding:10px 12px}.poem-meaning p{font-size:10px;line-height:1.6}}@media (height<=680px) and (width>=681px){.phase-trail{top:65px;transform:translate(-50%)scale(.82)}.poem-scroll{transform-origin:100% 0;top:117px;transform:rotate(.6deg)scale(.82)}.story-card,.completion-card{padding-top:25px;padding-bottom:24px}.story-card h2{font-size:38px}.magic-preview{margin:16px 0}.mission-card{bottom:12px}.hint-bubble{bottom:103px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}