:root{--bg:#f8f9f6;--paper:#fff;--ink:#1d251f;--muted:#657069;--line:#e1e7e0;--green:#17683a;--green2:#2f9252;--mint:#edf6ed;--pale:#d9ead7;--amber:#dc8a0a;--amber-bg:#fffaf0;--radius:12px;--shadow:0 8px 24px rgba(28,55,36,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:132px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.65}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}.skip-link{position:fixed;top:-60px;left:16px;z-index:99;background:#fff;padding:10px 14px}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(18px)}.top-nav{width:min(1440px,calc(100% - 56px));min-height:72px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:1.16rem;font-weight:900;text-decoration:none;white-space:nowrap}.brand-icon{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;border:2px solid var(--green);border-radius:50%;background:#fff;color:var(--green)}.brand-icon svg{width:29px;height:29px}.top-links{display:flex;align-items:center;gap:16px;list-style:none;margin:0;padding:0}.top-links a{display:inline-flex;min-height:72px;align-items:center;padding:0 2px;color:var(--ink);text-decoration:none;font-size:.92rem;font-weight:750}.top-links a:hover,.top-links a.active{color:var(--green)}.top-links a.active{box-shadow:inset 0 -3px 0 var(--green)}.nav-tools{display:flex;align-items:center;gap:14px}.nav-search{position:relative;width:220px}.nav-search svg{position:absolute;top:50%;left:14px;width:17px;height:17px;color:#83908a;transform:translateY(-50%)}.nav-search input{width:100%;min-height:38px;border:1px solid #d9dfd9;border-radius:999px;background:#fff;padding:0 14px 0 40px;color:var(--ink);outline:0}.nav-search input:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(31,122,77,.1)}.save-link{display:inline-flex;min-height:38px;align-items:center;gap:7px;color:var(--ink);font-weight:800;text-decoration:none;white-space:nowrap}.save-link svg{width:18px;height:18px}.mobile-menu{display:none;border:0;background:transparent;font-size:14px}
main{width:min(1480px,calc(100% - 36px));margin:auto}.library-hero{display:grid;grid-template-columns:260px 1fr;gap:52px;align-items:center;padding:42px 14px 30px}.eyebrow{margin:0 0 4px;color:var(--green2);font-size:13px;font-weight:800}.library-hero h1{margin:0 0 8px;color:var(--green);font-size:34px;line-height:1.2}.library-hero p{margin:0 0 5px;max-width:310px}.library-hero small{color:var(--muted)}.discovery{position:relative}.search-box{height:58px;border:1px solid #d9dfd9;border-radius:10px;background:white;display:flex;align-items:center;padding:0 20px;box-shadow:0 2px 8px rgba(0,0,0,.02)}.search-box:focus-within{border-color:var(--green2);box-shadow:0 0 0 3px rgba(47,146,82,.1)}.search-box input{width:100%;border:0;outline:0}.popular{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px}.popular span{font-size:14px}.popular button{border:0;border-radius:999px;background:var(--mint);padding:7px 16px;color:#285f3a}.search-results{position:absolute;inset:60px 0 auto;z-index:30;border:1px solid var(--line);border-radius:10px;background:#fff;padding:8px;box-shadow:var(--shadow)}.search-results button{width:100%;border:0;background:transparent;padding:10px;text-align:left}.search-results button:hover{background:var(--mint)}
.library-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:16px;align-items:start}.catalog{position:sticky;top:84px;height:calc(100vh - 104px);border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;box-shadow:var(--shadow)}.catalog-title{height:58px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 16px}.catalog-title h2{margin:0;color:var(--green);font-size:18px}.catalog-close{display:none}.catalog-scroll{height:calc(100% - 58px);overflow:auto;padding:12px 10px}.catalog button{border:0;background:transparent}.catalog-all{width:100%;padding:10px 12px;text-align:left}.catalog-group>button{width:100%;display:flex;justify-content:space-between;padding:9px 12px;text-align:left;font-weight:650}.catalog-group.open>button{border-radius:8px;background:var(--mint);color:var(--green)}.catalog-items{display:none}.catalog-group.open .catalog-items{display:block}.catalog-items button{position:relative;width:100%;padding:7px 12px 7px 25px;text-align:left}.catalog-items button.selected{border-radius:7px;background:linear-gradient(90deg,#eef7ee,#f8fbf7);color:var(--green);font-weight:800}.catalog-items button.selected:before{position:absolute;left:2px;top:7px;bottom:7px;width:4px;border-radius:9px;background:var(--green2);content:""}.aside-note{margin:22px 6px 4px;border:1px solid #d6e6d5;border-radius:9px;background:#f5faf3;padding:14px}.aside-note strong{color:var(--green)}.aside-note p{margin:7px 0 0;font-size:13px}.food-picker{display:none}
.food-detail{min-width:0}.food-header,.content-section{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}.food-header{display:grid;grid-template-columns:290px 1fr;gap:34px;padding:22px}.food-header img{width:100%;height:250px;border-radius:8px;object-fit:cover}.food-intro{align-self:center}.food-intro .category{margin:0;color:var(--green);font-weight:700}.food-intro h2{margin:4px 0 12px;font-size:31px}.food-intro h2 small{font-size:19px;font-weight:500}.feature-tags,.active-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:8px}.feature-tags span,.active-tags span{border-radius:999px;background:var(--mint);padding:5px 12px;color:#376846;font-size:14px}.food-intro>p:last-child{max-width:620px;margin:20px 0 0;font-size:16px}.section-nav{position:sticky;top:68px;z-index:40;display:flex;overflow-x:auto;margin:14px 0;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.97);box-shadow:var(--shadow);scrollbar-width:none}.section-nav a{flex:1;min-width:max-content;padding:15px 13px;text-align:center;text-decoration:none;font-size:14px;white-space:nowrap}.section-nav a.active{color:var(--green);font-weight:800;box-shadow:inset 0 -3px var(--green)}
.content-section{margin-bottom:14px;padding:24px}.section-heading{display:flex;align-items:flex-start;gap:12px;margin-bottom:18px}.section-heading>span,.controls-heading>div:first-child>span{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--pale);color:var(--green);font-size:14px}.section-heading h2{margin:2px 0 0;color:var(--green);font-size:20px}.section-heading p{margin:2px 0 0;color:var(--muted);font-size:14px}.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.info-card,.compound-card,.compare-grid>div,.selection-grid>div,.meal-grid>div,.caution-grid>div{border:1px solid var(--line);border-radius:9px;padding:18px}.info-card h3,.compound-card h3,.compare-grid h3,.selection-grid h3,.meal-grid h3,.caution-grid h3{margin:0 0 9px;font-size:16px}.info-card p,.compound-card p,.compare-grid p,.meal-grid p,.caution-grid p{margin:0}.info-card.warning{border-color:#f0d49b;background:#fffdf7}
.controls-heading{justify-content:space-between}.controls-heading>div:first-child{display:flex;gap:12px}.nutrition-controls{display:flex;gap:9px}.nutrition-controls select,.nutrition-controls input{min-width:138px;border:1px solid var(--line);border-radius:8px;background:white;padding:8px 12px}.current-data{margin:-12px 0 16px;color:var(--muted);font-size:13px}.nutrient-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.nutrient{border:1px solid var(--line);border-radius:8px;padding:13px;text-align:center}.nutrient span{display:block;font-size:13px}.nutrient strong{display:block;margin-top:5px;font-size:20px}.mineral-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.mineral{border:1px solid var(--line);border-radius:8px;padding:12px}.mineral strong,.mineral small{display:block}.mineral small{color:var(--muted)}.bar{height:6px;margin-top:10px;border-radius:9px;background:#e6ebe6;overflow:hidden}.bar i{display:block;height:100%;background:var(--green2)}details{margin-top:16px;border-top:1px solid var(--line);padding-top:12px}summary{color:#3c714c;text-align:center;cursor:pointer}.details-body{padding:16px;color:var(--muted)}
.compound-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.compound-card small{color:var(--green2)}.compound-card ul{margin:12px 0 0;padding-left:19px;font-size:14px}.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:9px;overflow:hidden}.compare-grid>div{border:0;border-radius:0}.compare-grid>div+div{border-left:1px solid var(--line)}.compare-grid strong{color:var(--green)}.compare-grid b{color:var(--amber)}.selection-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.selection-grid ul{margin:0;padding-left:22px}.takeaway{margin:16px 0 0;border-radius:8px;background:var(--mint);padding:12px 16px}.meal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.meal-grid em{display:inline-block;margin-top:12px;border-radius:99px;background:var(--mint);padding:4px 10px;color:var(--green);font-size:12px;font-style:normal}.not-recommended{display:flex;gap:20px;margin-top:14px;border:1px solid #efd9a9;border-radius:9px;background:var(--amber-bg);padding:14px}.not-recommended strong{color:#a85c00;white-space:nowrap}.not-recommended p{margin:0}.caution-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.caution-grid>div{border-color:#f0d49b;background:#fffcf5}.alternative-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.alternative-grid a{overflow:hidden;border:1px solid var(--line);border-radius:10px;text-decoration:none}.alternative-grid img{width:100%;height:150px;object-fit:cover}.alternative-grid h3,.alternative-grid p,.alternative-grid span{margin:10px 14px}.alternative-grid span{display:block;color:var(--green);font-weight:700}.source-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.source-groups>div{border:1px solid var(--line);border-radius:8px;padding:14px}.source-groups h3{color:var(--green)}
.catalog-scrim{display:none}@media(max-width:1050px){.top-links{gap:20px}.library-hero{grid-template-columns:220px 1fr}.library-layout{grid-template-columns:220px 1fr}.food-header{grid-template-columns:220px 1fr}.food-header img{height:210px}.overview-grid{grid-template-columns:1fr 1fr}.nutrient-grid,.mineral-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){html{scroll-padding-top:116px}.top-nav{width:calc(100% - 28px);height:58px}.mobile-menu{display:block}.header-search{display:none}.top-links{position:absolute;display:none;top:58px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px}.top-links.open{display:grid;gap:4px}.top-links a{display:block;padding:8px}.brand{font-size:15px}main{width:calc(100% - 24px)}.library-hero{display:block;padding:24px 2px 18px}.library-hero h1{font-size:29px}.library-hero>div:first-child p{font-size:14px}.discovery{margin-top:20px}.search-box{height:50px}.popular{gap:6px}.popular button{padding:6px 10px;font-size:12px}.food-picker{width:100%;display:flex;justify-content:space-between;border:1px solid var(--line);border-radius:9px;background:#fff;padding:13px 14px;margin-bottom:12px}.food-picker strong{margin-right:auto}.food-picker span{color:var(--green);font-size:13px}.library-layout{display:block}.catalog{position:fixed;z-index:70;top:0;bottom:0;left:0;width:min(86vw,340px);height:100vh;border-radius:0;transform:translateX(-105%);transition:transform .25s}.catalog.open{transform:translateX(0)}.catalog-title{height:62px}.catalog-close{display:block}.catalog-scroll{height:calc(100% - 62px)}.catalog-scrim.open{position:fixed;display:block;z-index:65;inset:0;background:rgba(13,24,16,.42)}.food-header{grid-template-columns:1fr;padding:14px;gap:16px}.food-header img{height:220px}.food-intro h2{font-size:26px}.food-intro>p:last-child{margin-top:13px}.section-nav{top:58px;margin:10px 0}.section-nav a{padding:12px 14px}.content-section{padding:18px 14px}.section-heading{margin-bottom:14px}.section-heading h2{font-size:19px}.overview-grid,.compound-grid,.compare-grid,.selection-grid,.meal-grid,.caution-grid,.alternative-grid,.source-groups{grid-template-columns:1fr}.compare-grid>div+div{border-left:0;border-top:1px solid var(--line)}.controls-heading{display:block}.controls-heading>div:first-child{margin-bottom:12px}.nutrition-controls{display:grid;grid-template-columns:1fr 1fr}.nutrition-controls select,.nutrition-controls input{min-width:0;width:100%}.nutrient-grid,.mineral-grid{grid-template-columns:repeat(2,1fr)}.alternative-grid{display:flex;overflow-x:auto}.alternative-grid a{flex:0 0 78%}.caution-grid{gap:10px}.not-recommended{display:block}.not-recommended p{margin-top:4px}}

/* 与主页共用的导航视觉 */
.section-nav{top:72px}
@media(max-width:1050px){.top-links{gap:12px}.nav-search{width:180px}}
@media(max-width:760px){.top-nav{min-height:74px;height:74px}.brand span:last-child{font-size:1.12rem}.nav-tools{display:none}.top-links{top:74px}.top-links a{min-height:auto}.section-nav{top:74px}}