:root{--ink:#233b42;--muted:#63777c;--teal:#176c6a;--pale:#edf4f1;--paper:#f8f9f6;--line:#dce4df;--amber:#85652e;--white:#fff;--serif:Georgia,'Noto Serif CJK SC',serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,'Noto Sans CJK SC','Microsoft YaHei',sans-serif;font-size:16px;line-height:1.65}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #b0803b;outline-offset:4px}[hidden]{display:none!important}header{height:89px;border-bottom:1px solid var(--line);background:#ffffffdf}header .wrap{height:100%;display:flex;align-items:center;gap:55px}.wrap{max-width:1256px;padding:0 28px;margin:auto}.brand{display:flex;gap:12px;align-items:center;font-weight:650;white-space:nowrap}.mark{display:grid;place-items:center;width:38px;height:38px;background:var(--teal);color:white;border-radius:12px;font-size:23px}.brand span small{font-weight:400;font-size:12px;letter-spacing:1px;margin-left:10px}nav{display:flex;gap:30px;font-size:14px;color:var(--muted)}nav a[aria-current=page]{color:var(--teal);font-weight:650}header .tag{margin-left:auto;color:var(--muted);font-size:12px;letter-spacing:2px}.eyebrow{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--teal);font-weight:650}.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:70px;padding:76px 0 60px;align-items:center}h1,h2,h3,p{margin-top:0}h1{font-size:52px;line-height:1.32;letter-spacing:-1px;font-weight:600;margin:16px 0 22px}h1 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#dce6df}.hero-note::before{content:'';position:absolute;top:28px;left:-10px;width:22px;height:22px;border-radius:50%;background:#bdccc0;border:5px solid var(--paper)}.hero-note h2{font-size:23px;margin:14px 0 20px}.note-row{padding:13px 0;border-top:1px solid #d6e0d8;display:flex;justify-content:space-between;gap:15px;font-size:13px}.note-row span{color:var(--muted)}.note-row strong{font-weight:500;text-align:right}.textlink{border:0;background:transparent;color:var(--teal);padding:0;font-size:13px;font-weight:600;display:inline-block;margin-top:17px}.section-head{display:flex;justify-content:space-between;align-items:end;margin:12px 0 20px}.section-head h2{font-size:22px;margin:0}.section-head p{font-size:13px;color:var(--muted);margin:0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:white;border:1px solid var(--line);border-radius:12px;padding:24px;text-align:left;color:var(--ink)}button.card{transition:transform .15s,border-color .15s}button.card:hover{transform:translateY(-3px);border-color:var(--teal)}.card .num{font-family:var(--serif);font-size:22px;color:#869f93}.card h3{font-size:18px;margin:17px 0 10px}.card p{font-size:13px;color:var(--muted);margin-bottom:10px}.card .arrow{color:var(--teal);font-size:21px;display:block;text-align:right}.principles{display:flex;justify-content:space-between;gap:22px;padding:30px 0 0;margin:35px 0;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.principles b{color:var(--ink);display:block;font-weight:500;margin-bottom:4px;font-size:13px}footer{border-top:1px solid var(--line);margin-top:55px;padding:24px 0;color:var(--muted);font-size:11px}footer .wrap{display:flex;justify-content:space-between;gap:20px}.breadcrumb{display:flex;gap:10px;font-size:12px;color:var(--muted);padding:27px 0}.detail-title{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:26px}.detail-title h1{font-size:40px;margin:0 0 5px}.detail-title h1 small{font-size:19px;font-weight:400;letter-spacing:0;color:var(--muted);margin-left:15px}.detail-title p{font-size:12px;color:var(--muted);margin:0}.stamp{background:var(--pale);color:var(--teal);padding:7px 12px;border-radius:6px;font-size:12px}.summary{border:1px solid #cbded6;border-radius:14px;background:#edf4f0;display:grid;grid-template-columns:1.1fr 1fr 1fr;padding:24px 27px;gap:24px;margin-bottom:28px}.summary h3{font-size:14px;margin-bottom:10px}.summary p{font-size:13px;margin:0;color:#49625e}.summary article+article{border-left:1px solid #cbded6;padding-left:24px}.summary .strong{font-size:19px;margin-bottom:6px;display:block;font-weight:550}.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px}.panel{background:white;border:1px solid var(--line);border-radius:12px;padding:26px;margin-bottom:22px}.panel h2{font-size:20px;margin:0}.sub{font-size:12px;color:var(--muted);margin:5px 0 20px}.tabs{display:flex;border-bottom:1px solid var(--line);gap:26px;margin:21px 0}.tabs button{border:0;background:none;padding:0 0 12px;color:var(--muted);font-size:14px}.tabs button[aria-selected=true]{border-bottom:2px solid var(--teal);color:var(--teal);font-weight:600}.rule-head{display:flex;justify-content:space-between;align-items:center;gap:15px}.rule-head h3{margin:0;font-size:18px}.badge{border-radius:5px;padding:4px 9px;background:var(--pale);font-size:12px;color:var(--teal);white-space:nowrap}.badge.amber{color:var(--amber);background:#f7f1e7}.facts{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin:23px 0}.facts small{display:block;color:var(--muted);font-size:11px;margin-bottom:5px}.facts strong{font-size:15px;font-weight:550}.facts .value{font-family:var(--serif);font-size:30px}.facts .unit{font-size:13px;margin-left:3px}.caution{background:#f7f4ed;border-left:3px solid #bea16b;padding:13px 15px;color:#756345;font-size:12px;border-radius:0 5px 5px 0}.rule-evidence{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:17px;color:var(--muted);font-size:11px}.rule-evidence button{margin:0}.side{padding:23px}.side h3{font-size:14px;margin-bottom:13px}.side p{font-size:12px;color:var(--muted)}.steps{counter-reset:action;list-style:none;margin:0;padding:0}.steps li{font-size:12px;border-top:1px solid var(--line);padding:14px 0;display:flex;gap:12px}.steps li:before{counter-increment:action;content:'0' counter(action);font-family:var(--serif);color:#769286;font-size:16px}.side-source{display:block;font-size:12px;color:var(--teal);margin:10px 0}.science-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}.science-grid article{background:#f7f9f7;border-radius:8px;padding:15px}.science-grid h3{font-size:14px;margin:0 0 8px}.science-grid p{font-size:12px;color:var(--muted);margin:8px 0 0}.science-grid strong{font-family:var(--serif);font-size:24px}.fine{font-size:12px;color:var(--muted);margin:18px 0 0}.smallhead{padding-top:37px;max-width:820px}.smallhead h1{font-size:34px}.result{margin:28px 0}.result h3{margin-top:0}.empty{padding:40px;border:1px dashed #bbc9c0;border-radius:12px;text-align:center}.foodline{display:flex;gap:15px;align-items:center;flex-wrap:wrap;margin:15px 0;font-size:15px}.foodline span{border:1px solid var(--line);padding:10px 16px;border-radius:8px;background:white}.method{max-width:880px;margin-top:30px}.method .card{margin-bottom:16px}.method h3{margin-top:0}dialog{border:0;border-radius:16px;padding:0;width:620px;max-width:calc(100vw - 28px);max-height:90vh;box-shadow:0 30px 100px #183e3340;color:var(--ink)}dialog::backdrop{background:#182d3380}dialog .inside{padding:30px}.dialog-head{display:flex;justify-content:space-between;align-items:start;gap:20px}.dialog-head h2{font-size:22px}.close{border:1px solid var(--line);border-radius:7px;padding:5px 11px;background:white}.source-section{border-top:1px solid var(--line);padding:20px 0}.source-section h3{font-size:15px}.source-section p{font-size:13px;color:var(--muted)}.source-section a{color:var(--teal);font-size:13px;text-decoration:underline;text-underline-offset:4px}.mobilebar{display:none}body:has(dialog[open]){overflow:hidden}
@media(max-width:900px){.wrap{padding:0 22px}header .wrap{gap:30px}header .tag{display:none}.hero{gap:30px;grid-template-columns:1.2fr 1fr}h1{font-size:42px}.hero-note{padding:24px}.detail-grid{grid-template-columns:minmax(0,1fr) 250px}.summary{gap:16px;padding:20px}.summary article+article{padding-left:16px}.detail-title h1 small{display:block;margin:0}.cards{gap:12px}.card{padding:20px}}
@media(max-width:650px){body{font-size:14px}.wrap{padding:0 20px}header{height:70px}header .wrap{justify-content:space-between;gap:15px}.brand span small{display:block;margin:0;font-size:9px;line-height:1.2}.brand{gap:8px;font-size:16px}.mark{width:32px;height:32px;font-size:20px;border-radius:10px}nav{gap:18px;font-size:12px}header nav a:first-child{display:none}.hero{display:block;padding:43px 0 34px}h1{font-size:36px;line-height:1.35;margin:14px 0 18px;letter-spacing:-.5px}.lead{font-size:14px}.searchbox{margin-top:22px}.searchbox input{font-size:13px;padding:10px 6px}.primary{padding:11px 15px;font-size:13px}.chips{font-size:11px}.chip{font-size:11px}.hero-note{margin-top:30px;padding:21px;border-radius:12px}.hero-note::before{display:none}.hero-note h2{font-size:19px;margin:8px 0 15px}.note-row{font-size:12px;padding:10px 0}.eyebrow{font-size:10px}.section-head{display:block;margin-top:0}.section-head h2{font-size:21px}.section-head p{font-size:12px;margin-top:6px}.cards{grid-template-columns:1fr;gap:12px}.card{padding:21px}.card h3{font-size:17px;margin:8px 0}.card .num{font-size:17px}.card .arrow{line-height:1}.principles{display:block;margin-top:26px;padding-top:20px}.principles div{margin-bottom:17px}.principles b{margin:0}footer{margin-top:32px;padding:20px 0 85px}footer .wrap{display:block}footer span{display:block;margin-bottom:5px}.breadcrumb{padding:22px 0 18px;font-size:11px}.detail-title{align-items:start;margin-bottom:20px}.detail-title h1{font-size:32px}.detail-title h1 small{font-size:15px;margin-top:2px}.detail-title p{font-size:10px;margin-top:8px}.stamp{font-size:10px;padding:5px 8px;white-space:nowrap;margin-top:9px}.summary{display:block;padding:20px;margin-bottom:20px}.summary article+article{border-left:0;border-top:1px solid #cbded6;margin-top:16px;padding:15px 0 0}.summary h3{font-size:12px;margin-bottom:5px}.summary .strong{font-size:18px}.summary p{font-size:12px}.detail-grid{display:flex;flex-direction:column;gap:0}.panel{padding:20px;margin-bottom:18px}.panel h2{font-size:19px}.sub{font-size:11px;margin-bottom:15px}.tabs{margin:17px 0}.rule-head{align-items:start;gap:10px}.rule-head h3{font-size:16px;max-width:210px}.badge{font-size:10px}.facts{grid-template-columns:1.1fr 1fr;gap:16px;margin:20px 0}.facts>div:last-child{grid-column:1/-1;border-top:1px solid var(--line);padding-top:13px}.facts .value{font-size:28px}.facts strong{font-size:13px}.rule-evidence{align-items:start;flex-direction:column}.caution{font-size:11px}.science-grid{grid-template-columns:1fr;gap:10px}.science-grid article{padding:14px}.detail-grid aside{display:block}.side{padding:20px}.side .steps li{font-size:13px}.smallhead{padding-top:29px}.smallhead h1{font-size:28px}.empty{padding:28px 15px}.foodline{font-size:13px}.mobilebar{position:fixed;bottom:0;left:0;width:100%;background:#fffffff5;border-top:1px solid var(--line);display:flex;justify-content:space-around;padding:12px 0 max(12px,env(safe-area-inset-bottom));z-index:5;font-size:11px}.mobilebar a{padding:3px 8px}.mobilebar a[aria-current=page]{color:var(--teal);font-weight:700}dialog .inside{padding:22px}.source-section p{font-size:12px}}

.approved-style-1{font-weight:400;font-size:12px;color:var(--muted)}
.approved-style-2{font-size:12px}
.approved-style-3{font:11px sans-serif}
.approved-style-4{border-top:1px solid var(--line);padding-top:14px;margin-top:18px;margin-bottom:0}
.approved-style-5{margin-top:15px}
.approved-style-6{margin-top:16px}
.approved-style-7{font-weight:400;color:var(--muted)}
.quick a{text-decoration:none}.tabs a{padding:0 0 12px;text-decoration:none;color:var(--muted);border-bottom:2px solid transparent;font-size:14px}.tabs a[aria-current="page"]{color:var(--teal);border-color:var(--teal);font-weight:600}.pill,select{border:1px solid var(--line);border-radius:8px;padding:8px;background:var(--paper);color:var(--ink);font:inherit}.pagination{display:flex;gap:20px;align-items:center;padding:20px 0}.fact-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.fact-list>div{background:var(--paper);padding:15px;border-radius:9px}.fact-list dt{color:var(--muted);font-size:13px}.fact-list dd{margin:4px 0 0;font-weight:700}.rule-section+.rule-section{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.source-flow{padding:0 0 22px}.source-flow .source-item{margin:16px 0}.inline-form{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:16px 0}.scope-english{overflow-wrap:anywhere}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@media(max-width:720px){.fact-list{grid-template-columns:1fr}.source-flow{padding:0}.tabs a{font-size:13px}.inline-form select{max-width:100%}}

/* Supporting states retain the approved visual scale. */
.page-heading{padding-top:32px;margin-bottom:28px}.page-heading h1{font-size:32px;margin:14px 0}.tags{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.search-icon{padding-left:14px}.skip{position:absolute;top:-100px;left:16px;z-index:100;background:white;padding:12px}.skip:focus{top:8px}.scope-english{font-size:12px}.facts strong:not(.value){overflow-wrap:anywhere}.mobilebar a{color:var(--muted);text-decoration:none}

.dialog-head{position:sticky;top:0;background:var(--white);z-index:2}

.source-item{scroll-margin-top:7rem}

.comparison-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:20px 0}.comparison-grid select{width:100%;max-width:100%;padding:12px;font:inherit}.comparison-grid label{display:block;margin-bottom:10px}.result-item h3{overflow-wrap:anywhere}@media(max-width:760px){.comparison-grid{grid-template-columns:1fr}}

/* Editorial surfaces reuse the accepted public skin. */
.reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}.reading-body,.reading-aside{display:grid;gap:20px}.explanation-claim p{white-space:pre-wrap;line-height:1.9}.claim-sources{display:flex;flex-wrap:wrap;gap:8px 14px}.reading-aside h2{font-size:1.2rem}.editorial-narrow{max-width:820px;margin:auto}.editorial-form{display:grid;gap:16px}.editorial-form textarea{box-sizing:border-box;width:100%;font:inherit;line-height:1.7;padding:14px;border:1px solid #a9bbb4;border-radius:12px;resize:vertical;background:#fff;color:#163b36}.editorial-form label{font-weight:600}.editorial-form .consent{display:flex;gap:10px;align-items:flex-start;font-weight:400}.consent input{margin-top:6px}.honey{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.pagination{display:flex;gap:24px;margin:28px 0}.method h2{font-size:1.35rem}.method a{overflow-wrap:anywhere}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(max-width:800px){.reading-layout{grid-template-columns:1fr}.reading-aside{grid-template-columns:1fr}.editorial-form{padding:20px}.claim-sources{line-height:1.8}}

.method{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.method>.card{margin:0}@media(max-width:720px){.method{grid-template-columns:minmax(0,1fr)}}

/* User-approved original illustrations; no product observation or third-party claims. */
:root{--paper:#f7f8f2;--teal:#256e5c;--ink:#283f36;--muted:#627469;--line:#dce4d7}
.hero{gap:48px;padding:54px 0 40px;grid-template-columns:1.1fr 1fr;align-items:center}.hero h1{font-size:54px;line-height:1.3}.hero .lead{font-size:16px}.hero-note{padding:0;background:transparent;border:0;box-shadow:none}.hero-note:before{display:none}.food-art{display:block;width:100%;height:auto;border-radius:20px;overflow:hidden}.art-foot{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:15px 4px 0}.art-foot b{font-size:15px}.art-foot a{font-size:12px;white-space:nowrap}.section-head{margin-top:4px;margin-bottom:17px}.cards{gap:22px}.cards>.card{padding:0;overflow:hidden;text-align:left;background:#fffef9;border-color:#dce4d7;box-shadow:0 5px 20px #284b3510;transition:transform .18s ease,box-shadow .18s ease}.cards>.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px #284b351b}.card-art{width:100%;height:125px;display:block;object-fit:cover}.card-copy{display:block;padding:18px 22px 22px}.card-copy .num{font-family:inherit;font-size:11px;font-weight:600;display:flex;align-items:center;gap:8px;letter-spacing:1px;color:var(--teal)}.topic-icon{width:23px;height:23px;flex-shrink:0}.card-copy h3{font-size:19px;line-height:1.55;margin:10px 0}.card-copy p{font-size:13px;margin-bottom:0}.card-copy .arrow{bottom:18px;right:18px}.principles{margin-top:30px;padding-top:24px}.principles>div{font-size:12px}.principles b{font-size:14px}.detail-title h1{display:flex;align-items:center;gap:13px}.detail-title h1 small{margin:0}.identity-symbol{display:grid;place-items:center;background:#e4ecd9;border:1px solid #d0dfc2;border-radius:16px;width:58px;height:58px;color:#426d50}.identity-symbol img{width:30px;height:30px}.summary h3{display:flex;gap:9px;align-items:center}.panel h2{display:flex;align-items:center;gap:9px}.detail-art{margin:0 0 16px;overflow:hidden;border-radius:12px}.detail-art{display:block;width:100%;height:auto}footer{margin-top:38px}
@media(max-width:900px){.hero{gap:25px}.hero h1{font-size:43px}.art-foot{display:block}.art-foot a{display:block;margin-top:6px}.card-copy{padding:16px}.card-copy h3{font-size:17px}}
@media(max-width:650px){.hero{display:block;padding:35px 0 28px}.hero h1{font-size:37px}.hero .lead{font-size:14px}.hero-note{margin-top:27px}.food-art{max-height:none}.art-foot{display:flex;padding-top:13px}.art-foot b{font-size:13px;max-width:170px}.art-foot a{font-size:11px;white-space:normal;max-width:105px}.cards{gap:18px}.card-art{height:134px}.card-copy{padding:17px 20px 20px}.card-copy h3{font-size:18px}.principles{margin-top:25px}.detail-title h1{font-size:29px;flex-wrap:wrap;gap:8px}.detail-title h1 small{font-size:14px}.identity-symbol{width:43px;height:43px;border-radius:12px}.identity-symbol img{width:24px;height:24px}.detail-title{gap:12px;flex-wrap:wrap}.stamp{margin-top:0}.summary .topic-icon{width:19px;height:19px}.detail-art{max-width:400px}.panel h2 .topic-icon{display:none}}
@media(prefers-reduced-motion:reduce){.cards>.card{transition:none}.cards>.card:hover{transform:none}}
.release-note{background:#edf4ef;border-bottom:1px solid #d4e1d7;color:#315b4b;font-size:12px}.release-note .wrap{display:flex;align-items:center;flex-wrap:wrap;gap:8px 20px;padding-block:11px}.release-note strong{font-size:12px}.release-note.review-due{background:#fff3d9;color:#785715;border-color:#ead7a9}@media(max-width:700px){.release-note .wrap{display:grid;gap:4px;padding-block:10px}}