:root{--page: #f6f2ea;--surface: #fffdf8;--surface-strong: #ffffff;--ink: #201b16;--muted: #6d6257;--soft: #988c80;--line: rgba(32, 27, 22, .13);--line-strong: rgba(32, 27, 22, .22);--blue: #9ed3ff;--green: #d6f98d;--orange: #ffc48f;--rose: #ffb5c8;--shadow: 0 24px 60px rgba(32, 27, 22, .09);font-family:PingFang SC,Microsoft YaHei,Hiragino Sans GB,system-ui,sans-serif;color:var(--ink);background:var(--page)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;margin:0;background:radial-gradient(circle at 12% 8%,rgba(158,211,255,.48),transparent 26vw),radial-gradient(circle at 84% 6%,rgba(255,181,200,.42),transparent 28vw),linear-gradient(180deg,var(--page),#fffaf2)}button,textarea,input{font:inherit}a{color:inherit}.app-shell{width:min(1180px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0;border-bottom:1px solid var(--line);background:#f6f2ead6;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none}.brand span{display:grid;width:42px;height:42px;place-items:center;border:1px solid var(--line-strong);background:linear-gradient(135deg,var(--blue),var(--green) 58%,var(--rose));font-size:13px;font-weight:900}.brand strong{font-size:16px}.site-header nav{display:flex;gap:18px;color:var(--muted);font-size:14px}.site-header nav a{text-decoration:none}.site-header nav a:hover{color:var(--ink)}.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.52fr);gap:clamp(32px,6vw,76px);align-items:center;padding:clamp(54px,8vw,108px) 0}.section-label{margin:0 0 14px;color:var(--soft);font-size:13px;font-weight:850;letter-spacing:0;text-transform:uppercase}h1,h2,h3,p{overflow-wrap:anywhere}h1,h2,h3{margin:0}h1{max-width:820px;font-size:clamp(44px,8vw,94px);font-weight:920;letter-spacing:0;line-height:.95}h2{font-size:clamp(28px,4vw,52px);font-weight:880;line-height:1.06}.hero-copy{max-width:680px;margin:24px 0 0;color:var(--muted);font-size:clamp(16px,1.55vw,19px);line-height:1.85}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.button{display:inline-flex;min-height:52px;align-items:center;justify-content:center;padding:0 22px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);cursor:pointer;font-weight:820;line-height:1.2;text-decoration:none;transition:transform .16s ease,box-shadow .16s ease,opacity .16s ease}.button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px #201b1614}.button:disabled{cursor:not-allowed;opacity:.48}.button.primary{border-color:var(--ink);background:var(--ink);color:var(--surface)}.button.ghost{background:#ffffff8a}.hero-card,.input-panel,.result-panel,.safety-section,.contact-card{border:1px solid var(--line-strong);background:#fffdf8d1;box-shadow:var(--shadow)}.hero-card{min-height:360px;padding:28px;background:radial-gradient(circle at 14% 18%,rgba(214,249,141,.7),transparent 28%),radial-gradient(circle at 88% 18%,rgba(158,211,255,.8),transparent 30%),radial-gradient(circle at 46% 84%,rgba(255,181,200,.82),transparent 32%),var(--surface)}.hero-card span,.state-card span,.result-summary span{display:block;margin-bottom:72px;color:var(--muted);font-size:13px;font-weight:900;text-transform:uppercase}.hero-card strong,.state-card strong{display:block;font-size:clamp(28px,4vw,46px);line-height:1.04}.hero-card p,.state-card p{max-width:360px;margin:18px 0 0;color:var(--muted);line-height:1.76}.workspace{display:grid;grid-template-columns:minmax(0,.9fr) minmax(360px,.72fr);gap:20px;align-items:start;padding:18px 0 clamp(70px,10vw,128px)}.input-panel,.result-panel{min-height:680px;padding:clamp(20px,3vw,30px)}.panel-heading{display:flex;align-items:start;justify-content:space-between;gap:18px;margin-bottom:18px}.file-picker{position:relative;display:inline-flex;min-height:42px;align-items:center;padding:0 14px;border:1px solid var(--line-strong);background:var(--surface-strong);cursor:pointer;font-size:14px;font-weight:760}.file-picker input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}textarea{display:block;width:100%;min-height:390px;resize:vertical;border:1px solid var(--line-strong);background:var(--surface-strong);color:var(--ink);padding:18px;font-size:16px;line-height:1.75}textarea:focus{outline:3px solid rgba(158,211,255,.42);outline-offset:3px}.input-meta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:12px;color:var(--muted);font-size:13px;line-height:1.6}.danger,.error-message{color:#b42318}.error-message{margin:18px 0 0;font-weight:760}.submit-button{width:100%;margin-top:22px}.state-card{min-height:320px;padding:24px;border:1px solid var(--line);background:linear-gradient(135deg,#9ed3ff5c,#d6f98d47)}.state-card.loading{background:linear-gradient(135deg,#ffc48f5c,#ffb5c842)}.analysis-result{display:grid;gap:14px}.result-summary{padding:22px;border:1px solid var(--line);background:var(--ink);color:var(--surface)}.result-summary span{margin-bottom:34px;color:#fffdf8a8}.result-summary p{color:#fffdf8b8}.result-block{padding:18px;border:1px solid var(--line);background:#ffffff9e}.result-block h3{font-size:18px}.result-block p,.result-block li{color:var(--muted);line-height:1.72}.result-block em{display:inline-flex;margin-left:8px;color:var(--soft);font-style:normal;font-size:13px;text-transform:uppercase}.result-block ul{margin:12px 0 0;padding-left:1.2em}.suggestions{display:grid;gap:10px;margin-top:12px}.suggestions article{padding:14px;border:1px solid var(--line);background:var(--surface)}.safety-notice{margin:0;padding:16px;border:1px solid var(--line-strong);background:#fff8d8;color:var(--muted);line-height:1.7}.safety-notice.crisis{border-color:#b423186b;background:#fff0ee;color:#8a1f14}.safety-section{display:grid;grid-template-columns:minmax(0,.7fr) minmax(420px,1fr);gap:clamp(28px,6vw,82px);padding:clamp(24px,5vw,52px);margin-bottom:60px}.safety-grid{display:grid;gap:12px}.safety-grid article{padding:16px;border:1px solid var(--line);background:#ffffff94}.safety-grid p{margin:8px 0 0;color:var(--muted);line-height:1.7}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important}}@media(max-width:900px){.hero,.workspace,.safety-section{grid-template-columns:1fr}.input-panel,.result-panel{min-height:auto}}@media(max-width:680px){.app-shell{width:min(100% - 28px,1180px)}.site-header{display:grid}.site-header nav{overflow-x:auto;padding-bottom:2px}.hero{padding-top:44px}.hero-actions,.button{width:100%}.panel-heading{display:grid}.file-picker{justify-content:center}.input-meta{display:grid}}
