:root{
  color-scheme:light;
  --ink:#16211e;
  --muted:#6f7b76;
  --soft:#9aa6a1;
  --line:#e2e8e5;
  --line-strong:#cfd9d5;
  --paper:#fbfcfb;
  --surface:#fff;
  --surface-soft:#f5f8f6;
  --teal:#0b746d;
  --teal-dark:#075b55;
  --teal-soft:#e8f5f2;
  --coral:#e76f5b;
  --aqua:#37b7aa;
  --sand:#f2eee5;
  --danger:#b84a55;
  --shadow:0 18px 50px rgba(31,48,43,.08);
  --shadow-soft:0 10px 28px rgba(31,48,43,.06);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input,select,textarea{font:inherit}
button{touch-action:manipulation}
.screen{min-height:100vh}
.screen[hidden],.modal[hidden]{display:none!important}
.app-shell{min-height:100vh;background:linear-gradient(180deg,#fff 0,#fbfcfb 48%,#f6faf8 100%)}
.site-header{display:flex;align-items:center;justify-content:space-between;width:min(1180px,calc(100vw - 40px));margin:0 auto;padding:22px 0}
.brand-lockup{display:flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--ink);font-size:21px;font-weight:900;letter-spacing:0;cursor:pointer}
.brand-home{padding:8px 0}
.brand-home:hover{color:var(--teal)}
.header-actions{display:flex;align-items:center;gap:10px}
.account-area{position:relative}
.header-auth-button.is-account{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.account-menu{position:absolute;right:0;top:calc(100% + 10px);z-index:20;display:none;width:260px;padding:14px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 18px 48px rgba(21,34,31,.14)}
.account-menu::before{position:absolute;right:0;bottom:100%;width:100%;height:12px;content:""}
.account-area:hover .account-menu:not([hidden]),.account-area:focus-within .account-menu:not([hidden]),.account-menu:hover:not([hidden]){display:block}
.account-menu[hidden]{display:none}
.account-menu-section{display:grid;gap:5px;padding-bottom:11px;border-bottom:1px solid var(--line)}
.account-menu-section span,.account-menu-grid span{color:var(--muted);font-size:12px}
.account-menu-section strong{font-size:15px;color:var(--ink)}
.account-menu-grid{display:grid;grid-template-columns:1fr auto;gap:9px 12px;padding:12px 0;border-bottom:1px solid var(--line)}
.account-menu-grid strong{font-size:12px;color:var(--ink);text-align:right}
.account-menu [data-account-auth-only][hidden]{display:none!important}
.account-menu-action{display:flex;width:100%;min-height:42px;align-items:center;border:0;border-bottom:1px solid var(--line);padding:0;background:transparent;color:var(--ink);font-size:13px;font-weight:800;text-align:left;cursor:pointer}
.account-menu-action:hover{color:var(--teal)}
.account-menu-signout{width:100%;min-height:38px;border:0;background:transparent;text-align:left;color:var(--danger);font-weight:760;cursor:pointer}
.account-feedback{display:grid;grid-template-columns:1fr auto;gap:5px 10px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.account-feedback span{grid-column:1/-1;color:var(--muted);font-size:12px}
.account-feedback strong{min-width:0;overflow:hidden;color:var(--ink);font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.account-feedback button{min-height:28px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--teal);font-size:12px;font-weight:850;cursor:pointer}
.account-feedback button:hover{border-color:var(--teal);background:var(--teal-soft)}
.account-menu-signout{color:var(--danger)}
.account-menu-signout:hover{text-decoration:underline;text-underline-offset:4px}
.header-note,.result-status{color:var(--muted);font-size:13px}
.eyebrow{margin:0;color:var(--teal);font-size:11px;font-weight:850;letter-spacing:.08em}

.home-screen{display:flex;flex-direction:column;padding-bottom:42px;background:#f6fafb}
.home-screen .site-header{width:100%;padding:20px 32px;border-bottom:1px solid rgba(207,217,213,.65)}
.hero-copy{width:min(920px,calc(100vw - 40px));margin:clamp(42px,8vh,78px) auto 34px;text-align:center}
.hero-copy h1,.result-heading h1{max-width:900px;margin:0 auto 18px;color:#2d3137;font-size:clamp(42px,5.1vw,70px);line-height:1.13;letter-spacing:0;font-weight:500}
.hero-copy h1 em{display:block;color:inherit;font-style:normal;font-weight:inherit}
.workflow-grid{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:72px;width:min(980px,calc(100vw - 88px));margin:0 auto}
.workflow-grid:after{content:"→";position:absolute;left:50%;top:152px;z-index:3;display:grid;width:38px;height:38px;place-items:center;border:0;border-radius:0;background:transparent;color:#1b625f;font-size:34px;font-weight:400;box-shadow:none;transform:translateX(-50%)}
.workflow-step{position:relative;padding:14px 14px 18px;border:1px solid #d8e0df;border-radius:8px;background:#fff;box-shadow:0 15px 34px rgba(26,44,39,.09)}
.step-number{position:absolute;z-index:2;left:28px;top:24px;display:grid;width:42px;height:34px;place-items:center;border:1px solid rgba(255,255,255,.28);border-radius:7px;background:#0f6f6e;color:#fff;font-size:14px;font-weight:500;letter-spacing:0}
.workflow-step h2{margin:18px 6px 2px;color:#22292d;font-size:19px;line-height:1.35;letter-spacing:0;text-align:center;font-weight:650}
.workflow-step p{display:none}
.workflow-art{position:relative;overflow:hidden;height:246px;border:1px solid #e3e9e8;border-radius:6px;background:#f0f6f4}
.workflow-art .workflow-image{display:block;width:100%;height:100%;object-fit:cover;object-position:center}
.placement-art{background:linear-gradient(180deg,#f7fbfa,#e5f3f0)}
.art-tank-lines{position:absolute;inset:22px;border:1px solid rgba(18,95,90,.18);border-bottom:7px solid rgba(33,114,102,.22);background:linear-gradient(180deg,rgba(255,255,255,.75),rgba(211,235,231,.7))}
.placement-art img,.result-art img{position:absolute;width:168px;height:168px;object-fit:contain;filter:drop-shadow(0 14px 16px rgba(35,64,58,.16))}
.placement-art img{left:31%;top:24%}
.art-marker{position:absolute;width:17px;height:17px;border:2px solid #fff;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px rgba(231,111,91,.16)}
.marker-one{left:20%;top:38%}
.marker-two{right:18%;bottom:28%}
.result-art{background:linear-gradient(180deg,#f7fbfa,#e7f4f0 62%,#d9e7e0)}
.art-water{position:absolute;inset:0;background:repeating-linear-gradient(176deg,transparent 0 30px,rgba(69,149,140,.09) 31px 32px)}
.result-art img{left:29%;top:18%;width:188px;height:188px;filter:saturate(1.12) drop-shadow(0 16px 18px rgba(35,64,58,.18))}
.result-glow{position:absolute;left:24%;right:24%;top:16%;height:150px;border:1px solid rgba(55,183,170,.22);border-radius:8px;background:rgba(232,245,242,.54)}
.result-rock{position:absolute;left:20%;right:18%;bottom:0;height:36px;border-radius:70% 70% 0 0;background:#d0d9d3}
.hero-cta-row{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;width:min(520px,calc(100vw - 40px));margin:38px auto 0}
.hero-upload-button{display:flex;align-items:center;justify-content:center;gap:12px;width:min(390px,100%);min-height:56px;margin:0;padding:0 24px;border-radius:999px;background:#0d6764;border-color:#0d6764;cursor:pointer;font-size:16px;font-weight:760;box-shadow:0 12px 24px rgba(13,103,100,.16)}
.hero-upload-button:hover{background:#095a57;border-color:#095a57;box-shadow:0 16px 30px rgba(13,103,100,.22)}
.hero-upload-button .button-arrow{display:grid;width:24px;height:24px;place-items:center;border-radius:7px;background:rgba(255,255,255,.14);font-size:17px;font-weight:700;line-height:1}
.sample-tank-button{min-height:0;border:0;background:transparent;color:#356764;box-shadow:none;white-space:nowrap;font-size:14px;font-weight:760;padding:2px 0;cursor:pointer}
.sample-tank-button:hover{background:transparent;color:#095a57;box-shadow:none;transform:none;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
#tankUpload{display:none}

.primary-button,.secondary-button{min-height:46px;border-radius:8px;padding:0 18px;font-weight:850;letter-spacing:0;cursor:pointer;transition:background .16s ease,border-color .16s ease,color .16s ease,box-shadow .16s ease,transform .16s ease}
.primary-button{border:1px solid var(--teal);background:var(--teal);color:#fff;box-shadow:0 10px 22px rgba(11,116,109,.16)}
.primary-button:hover{background:var(--teal-dark);border-color:var(--teal-dark);box-shadow:0 13px 28px rgba(11,116,109,.18);transform:translateY(-1px)}
.secondary-button{border:1px solid var(--line-strong);background:#fff;color:var(--ink)}
.secondary-button:hover{border-color:var(--teal);color:var(--teal)}
.text-button{border:0;padding:8px 0;background:transparent;color:var(--teal);font-weight:800;cursor:pointer}
.icon-button{display:grid;width:38px;height:38px;place-items:center;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font-size:21px;line-height:1;cursor:pointer;box-shadow:var(--shadow-soft)}
.icon-button:hover{border-color:var(--teal);color:var(--teal)}

.editor-screen{display:flex;min-height:100vh;flex-direction:column;background:#f7faf8}
.editor-header.site-header{flex:0 0 auto;width:100%;max-width:1520px;padding:18px 24px}
.compact-button{min-height:40px}
.editor-main{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:18px;max-width:1520px;width:100%;height:calc(100vh - 164px);min-height:0;margin:0 auto;padding:0 18px 18px}
.stage-wrap{display:flex;min-width:0;min-height:0;flex-direction:column}
.stage{position:relative;flex:1;min-height:430px;overflow:hidden;border:1px solid var(--line-strong);border-radius:8px;background:#edf3f1;box-shadow:var(--shadow)}
#tankImage,#renderedImage,#previewCanvas{position:absolute;inset:0;width:100%;height:100%}
#tankImage,#renderedImage{display:none;object-fit:contain;background:#101817}
.stage.has-image #tankImage{display:block}
.stage.has-render #renderedImage{display:block}
.empty-state{position:absolute;inset:0;display:grid;place-content:center;gap:9px;text-align:center;background:linear-gradient(180deg,#fff,#eef6f3)}
.empty-state strong{font-size:24px;letter-spacing:0}
.empty-state span{color:var(--muted)}
.stage.has-image .empty-state,.stage.has-render .empty-state{display:none}
#previewCanvas{cursor:default}
.coral-tray{display:flex;min-height:0;overflow:hidden;flex-direction:column;padding:18px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow-soft)}
.tray-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding-bottom:6px}
.tray-header h1{margin:0;font-size:22px;line-height:1.25;letter-spacing:0}
.coral-category-nav{display:flex;gap:8px;align-items:center;border-bottom:1px solid var(--line);padding:10px 0 12px}
.coral-category-tabs{display:flex;flex:1 1 auto;min-width:0;flex-wrap:nowrap;gap:8px;min-height:34px;overflow-x:auto;overflow-y:hidden;padding:0;scrollbar-width:none;scroll-behavior:smooth}
.coral-category-tabs::-webkit-scrollbar{display:none}
.category-nav-button{display:grid;flex:0 0 30px;width:30px;height:30px;place-items:center;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--teal);font-family:Arial,sans-serif;font-size:24px;line-height:0;cursor:pointer}
.category-nav-button[hidden]{display:none}
.category-nav-button:hover{border-color:var(--teal);background:var(--teal-soft)}
.category-tab{flex:0 0 auto;min-height:32px;border:1px solid var(--line);border-radius:999px;padding:0 13px;background:#fff;color:var(--muted);font-size:12px;font-weight:850;cursor:pointer;white-space:nowrap}
.category-tab[aria-pressed=true]{border-color:var(--teal);background:var(--teal);color:#fff;box-shadow:0 8px 18px rgba(11,116,109,.14)}
.coral-palette{display:flex;flex:1 1 auto;align-content:flex-start;flex-wrap:wrap;gap:12px;min-height:0;overflow:auto;padding:14px 2px 2px}
.coral-category{display:grid;gap:10px}
.category-heading{display:flex;align-items:center;justify-content:space-between;padding:0 2px;color:var(--ink)}
.category-heading strong{font-size:14px;letter-spacing:0}
.category-heading span{display:grid;min-width:24px;height:22px;place-items:center;border:1px solid var(--line);border-radius:999px;background:var(--surface-soft);color:var(--muted);font-size:11px;font-weight:850}
.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.coral-card{position:relative;display:block;aspect-ratio:1/1;width:calc((100% - 12px)/2);flex:0 0 calc((100% - 12px)/2);min-width:0;min-height:0;overflow:hidden;border:1px solid #16211e;border-radius:8px;background:#050706;color:#fff;text-align:left;cursor:pointer;transition:border-color .16s ease,box-shadow .16s ease,background .16s ease,transform .16s ease}
.coral-card:hover{border-color:var(--line-strong);box-shadow:0 8px 22px rgba(26,44,39,.06)}
.coral-card img,.coral-chip{position:absolute;inset:0;display:block;width:100%;height:100%;border:0;border-radius:0;object-fit:cover;background:#050706}
.coral-chip{overflow:hidden}
.coral-chip:after{content:"";position:absolute;inset:17% 12%;border-radius:42% 58% 48% 52%;background:rgba(255,255,255,.2);filter:blur(2px)}
.coral-card[aria-pressed=true]{border-color:#e7fff7;box-shadow:0 0 0 3px var(--teal),0 12px 28px rgba(11,116,109,.2);background:#050706}
.coral-card[aria-pressed=true]:after{content:var(--selected-coral-label,"已选");position:absolute;z-index:4;left:8px;top:8px;display:grid;min-width:58px;height:24px;padding:0 8px;place-items:center;border-radius:999px;background:#0d6764;color:#fff;font-size:11px;font-weight:900;box-shadow:0 8px 18px rgba(0,0,0,.18)}
.coral-card strong{position:absolute;left:0;right:0;bottom:0;z-index:2;display:block;min-height:44px;padding:18px 10px 9px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.78));color:#fff;font-size:13px;line-height:1.25;text-shadow:0 1px 8px rgba(0,0,0,.35)}
.coral-card.is-locked img,.coral-card.is-locked .coral-chip{filter:none}
.coral-lock{position:absolute;z-index:3;right:8px;top:8px;display:grid;min-width:36px;height:22px;place-items:center;border:1px solid rgba(255,255,255,.76);border-radius:999px;background:rgba(255,255,255,.9);color:#0d6764;font-size:10px;font-weight:900;box-shadow:0 8px 16px rgba(0,0,0,.16)}
.coral-tray .coral-category-tabs{flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden}
.render-dock{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;max-width:none;margin:0;padding:16px max(18px,calc((100vw - 1484px) / 2)) 18px;border-top:1px solid var(--line);background:rgba(255,255,255,.96);backdrop-filter:blur(12px)}
.render-dock>div:first-child{display:grid;gap:4px;min-width:0}
.render-dock>div:first-child>strong{display:none}
.render-dock strong{font-size:17px;letter-spacing:0}
.render-status{min-height:18px;color:var(--muted);font-size:13px}
.render-progress{width:min(360px,48vw);height:7px;overflow:hidden;border-radius:999px;background:#e7efec}
.render-progress span{display:block;width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--teal),var(--aqua));transition:width .35s ease}
.render-dock-actions{display:flex;align-items:center;gap:12px}
.new-upload-dock-button{min-height:52px}
.render-button{display:flex;min-width:210px;min-height:52px;align-items:center;justify-content:center;gap:10px;font-size:16px}
.render-button strong{display:none;font-size:13px;color:rgba(255,255,255,.88)}
.render-button.is-progressing strong{display:inline}
.quota-badge{display:inline-flex;min-height:34px;align-items:center;border:1px solid var(--line);border-radius:999px;padding:0 12px;background:var(--surface-soft);color:var(--muted);font-size:12px;font-weight:850;white-space:nowrap}
.render-dock .quota-badge,.quota-badge.is-hidden{display:none}
.selection-controls{position:absolute;z-index:4;width:230px;padding:11px;border:1px solid rgba(210,221,216,.9);border-radius:8px;background:rgba(255,255,255,.96);box-shadow:0 16px 36px rgba(15,37,31,.14);backdrop-filter:blur(10px)}
.selection-heading{display:flex;justify-content:space-between;gap:8px;margin-bottom:9px;font-size:11px;color:var(--muted)}
.selection-heading strong{max-width:138px;overflow:hidden;color:var(--ink);font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.selection-actions{display:flex;align-items:center;justify-content:space-between;gap:5px}
.tool-button{display:grid;width:29px;height:29px;place-items:center;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);font-size:17px;cursor:pointer}
.tool-button:hover{border-color:var(--teal);color:var(--teal);background:var(--teal-soft)}
.tool-button.danger-button{color:var(--danger)}
.selection-actions span{min-width:31px;text-align:center;color:var(--muted);font-size:11px}
.advanced-trigger{position:fixed;left:0;bottom:0;width:72px;height:72px;cursor:default}

.modal{position:fixed;z-index:100;inset:0;display:grid;place-items:center;padding:18px}
.modal-backdrop{position:absolute;inset:0;background:rgba(15,30,27,.28);backdrop-filter:blur(8px)}
.modal-card{position:relative;z-index:1;width:min(520px,calc(100vw - 32px));max-height:calc(100vh - 36px);overflow:auto;padding:30px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 28px 80px rgba(20,35,31,.16)}
.confirm-card{width:min(440px,calc(100vw - 32px));padding:30px}
.confirm-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}
.confirm-actions .primary-button,.confirm-actions .secondary-button{min-width:118px}
.modal-close{position:absolute;right:18px;top:18px}
.modal-card h2{margin:8px 0 10px;font-size:34px;line-height:1.1;letter-spacing:0}
.modal-description{margin:0 0 22px;color:var(--muted);font-size:14px;line-height:1.6}
.advanced-grid{display:grid;gap:13px}
.advanced-grid label{display:grid;gap:7px;color:var(--muted);font-size:12px}
.advanced-grid input,.advanced-grid select{min-height:42px;padding:0 11px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink)}
.modal-hint{display:block;margin-top:14px;color:var(--muted);font-size:12px}
.settings-card{width:min(940px,calc(100vw - 32px));height:min(720px,calc(100vh - 36px));overflow:hidden;padding:30px}
.settings-card>h2{margin-bottom:24px}
.settings-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:28px;height:calc(100% - 82px);min-height:0}
.settings-nav{display:flex;flex-direction:column;gap:6px;padding-right:18px;border-right:1px solid var(--line)}
.settings-nav button{min-height:44px;border:0;border-radius:7px;padding:0 13px;background:transparent;color:var(--muted);font-size:13px;font-weight:760;text-align:left;cursor:pointer}
.settings-nav button:hover{background:var(--surface-soft);color:var(--ink)}
.settings-nav button[aria-pressed="true"]{background:var(--teal-soft);color:var(--teal)}
.settings-content{min-width:0;overflow:auto;padding:0 12px 30px 0;scrollbar-gutter:stable}
.policy-panel>h3{margin:0;color:var(--ink);font-size:26px;line-height:1.25}
.policy-updated{margin:7px 0 26px;color:var(--soft);font-size:12px}
.policy-panel section{margin:0 0 25px}
.policy-panel h4{margin:0 0 9px;color:var(--ink);font-size:15px;line-height:1.4}
.policy-panel p,.policy-panel li{color:var(--muted);font-size:13px;line-height:1.78}
.policy-panel p{margin:0 0 9px}
.policy-panel ul{display:grid;gap:5px;margin:0;padding-left:20px}
.policy-portal-link{display:inline-flex;min-height:44px;align-items:center;justify-content:center;margin-top:2px;border:1px solid var(--teal);border-radius:7px;padding:0 17px;background:var(--teal);color:#fff;font-size:13px;font-weight:850;text-decoration:none;box-shadow:0 10px 22px rgba(11,116,109,.14)}
.policy-portal-link:hover{background:var(--teal-dark);border-color:var(--teal-dark)}

.result-screen{padding-bottom:50px;background:#fff}
.result-heading{width:min(900px,calc(100vw - 40px));margin:clamp(34px,7vh,72px) auto 26px;text-align:center}
.result-heading h1{font-size:clamp(38px,5vw,62px);margin-bottom:12px}
.result-heading>p:last-child{max-width:620px;margin:0;color:var(--muted);line-height:1.65}
.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;width:min(1060px,calc(100vw - 40px));margin:0 auto}
.single-result-grid{grid-template-columns:minmax(0,1fr);width:min(900px,calc(100vw - 40px))}
.result-grid figure{margin:0}
.result-grid figcaption{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;color:var(--muted);font-size:13px;font-weight:850}
.result-image-frame{aspect-ratio:4/3;overflow:hidden;border:1px solid var(--line);border-radius:8px;background:#edf3f1;box-shadow:var(--shadow-soft)}
.result-image-frame img{display:block;width:100%;height:100%;object-fit:contain;background:#101817}
.featured-result{border-color:var(--teal);box-shadow:0 18px 50px rgba(11,116,109,.12)}
.result-actions{display:flex;align-items:center;justify-content:center;gap:14px;width:min(1060px,calc(100vw - 40px));margin:32px auto 0}
.result-actions .primary-button,.result-actions .secondary-button{min-width:188px}
.result-actions .text-button{margin-left:8px}

.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.error-box{margin-top:14px;max-height:160px;overflow:auto;border:1px solid #f0c6ca;border-radius:8px;padding:10px;background:#fff7f8;color:#8b1e2d;white-space:pre-wrap;font-size:12px}
.screen.is-rendering .stage:before{content:var(--rendering-label,"正在生成真实效果");position:absolute;z-index:6;inset:0;display:grid;place-items:center;background:rgba(12,25,23,.34);color:#fff;font-size:18px;font-weight:850;text-shadow:0 1px 18px rgba(0,0,0,.35);backdrop-filter:blur(2px)}
.screen.is-rendering .stage:after{content:"";position:absolute;z-index:7;inset:0;background:linear-gradient(110deg,transparent 16%,rgba(255,255,255,.34) 48%,transparent 80%);animation:scan 1.7s infinite}
@keyframes scan{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

@media(max-width:980px){
  .site-header{width:calc(100vw - 32px);padding:18px 0}
  .header-note{display:none}
  .hero-copy{width:calc(100vw - 32px);margin-top:40px}
  .workflow-grid{grid-template-columns:1fr;width:calc(100vw - 32px)}
  .workflow-grid:after{content:"↓";top:calc(50% - 22px)}
  .workflow-art{height:210px}
  .hero-cta-row{align-items:stretch;flex-direction:column;width:calc(100vw - 32px)}
  .hero-upload-button{width:100%}
  .editor-header.site-header{width:100%;padding:14px 16px}
  .editor-main{grid-template-columns:1fr;height:auto;min-height:0;padding:0 12px 12px}
  .stage{min-height:58vh}
  .coral-tray{min-height:238px;overflow:visible}
  .coral-palette{overflow:auto}
  .category-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .coral-card{min-height:0;padding:0}
  .coral-card img,.coral-chip{height:100%}
  .render-dock{position:sticky;bottom:0;z-index:5;align-items:stretch;flex-direction:column;padding:12px 16px}
  .render-dock-actions{width:100%}
  .render-button{flex:1;min-width:0}
  .tray-header h1{font-size:20px}
  .result-grid{grid-template-columns:1fr}
  .result-actions{flex-wrap:wrap}
  .result-actions .text-button{width:100%;margin:0}
  .settings-card{height:min(760px,calc(100vh - 24px));padding:24px 20px}
  .settings-layout{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr);gap:16px;height:calc(100% - 76px)}
  .settings-nav{flex-direction:row;gap:7px;overflow-x:auto;padding:0 0 12px;border-right:0;border-bottom:1px solid var(--line)}
  .settings-nav button{flex:0 0 auto;min-height:38px;padding:0 12px;white-space:nowrap}
  .settings-content{padding-right:4px}
}
@media(max-width:560px){
  .hero-copy{margin-top:34px}
  .hero-copy h1{font-size:34px}
  .workflow-step{padding:12px}
  .workflow-art{height:184px}
  .placement-art img,.result-art img{width:145px;height:145px}
  .coral-palette{gap:7px}
  .coral-category-nav{gap:6px}
  .category-nav-button{flex-basis:28px;width:28px;height:28px;font-size:22px}
  .coral-category-tabs{max-height:none;gap:6px;overflow-x:auto;overflow-y:hidden}
  .category-tab{min-height:31px;padding:0 10px;font-size:11px}
  .category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
  .coral-card strong{font-size:12px}
  .coral-card img,.coral-chip{height:100%}
  .compact-button{padding:0 10px;font-size:12px}
  .selection-controls{width:214px}
  .modal-card{padding:24px 18px}
  .modal-card h2{font-size:29px}
  .settings-card{padding:22px 16px}
  .settings-card>h2{margin-bottom:18px}
  .policy-panel>h3{font-size:23px}
  .result-actions{align-items:stretch;flex-direction:column}
  .result-actions .primary-button,.result-actions .secondary-button{width:100%}
}