:root{--paper:#f7f6f0;--ink:#243c33;--muted:#607268;--green:#245c47;--line:#dedfd5;--orange:#b55126}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.85 "Microsoft YaHei",system-ui,sans-serif}
a{color:var(--green);text-decoration:none}
a:focus-visible,summary:focus-visible{outline:3px solid #c37542;outline-offset:5px}
a:hover{color:#153c2c}
svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.sitebar{background:#f7f6f0f5;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;backdrop-filter:blur(12px)}
.bar-inner{max-width:1200px;margin:auto;padding:17px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-size:19px;font-weight:700;letter-spacing:.5px;display:flex;align-items:center;gap:10px}
.brand svg{background:var(--green);color:#fff;border-radius:8px;width:34px;height:34px;padding:6px}
.edition{font-size:11px;font-weight:400;border-left:1px solid #c6cdc2;padding-left:12px;color:var(--muted)}
.switch{position:relative;font-size:14px}
.switch summary{list-style:none;cursor:pointer;padding:7px 14px;border:1px solid var(--line);border-radius:8px;background:white}
.switch summary::-webkit-details-marker{display:none}
.switch nav{position:absolute;right:0;top:48px;width:200px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:0 12px 35px #263d3312}
.switch a{display:block;padding:8px 12px;border-radius:6px}
.switch a:hover,.switch a[aria-current]{background:#edf2e9}
.home{max-width:1200px;margin:auto;padding:60px 28px 0}
.hero{display:grid;grid-template-columns:1.5fr 1fr;gap:50px;align-items:center;padding-bottom:50px}
.eyebrow{font-size:12px;letter-spacing:2px;color:var(--green);font-weight:700}
.hero h1{font-size:clamp(32px,4vw,50px);line-height:1.4;letter-spacing:-1px;margin:18px 0 10px}
.subtitle{font-size:23px;color:var(--green);margin:0 0 18px}
.hero-copy{max-width:510px;color:var(--muted);margin-bottom:26px}
.button{display:inline-flex;align-items:center;background:var(--green);color:#fff;border-radius:9px;padding:11px 23px;font-size:15px;gap:28px}
.button:hover{background:#194a36;color:white}
.book{position:relative;background:#e8eee2;border-radius:24px;padding:34px;transform:rotate(2deg);margin:10px 16px 10px 0}
.book-inner{background:var(--green);color:#fff;padding:30px 28px;border-radius:3px 14px 14px 3px;border-left:8px solid #194735;box-shadow:10px 14px 0 #245c4712}
.book small{font-size:11px;letter-spacing:2px;color:#d1dec9}
.book strong{display:block;font-size:30px;line-height:1.6;margin:20px 0}
.book-rule{height:1px;background:#ffffff40;margin:22px 0}
.book p{font-size:13px;margin:0;color:#e2ecdc}
.section-head{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:30px;margin-bottom:22px;gap:20px}
.section-head h2{font-size:24px;margin:0}
.section-head p{font-size:14px;color:var(--muted);margin:0}
.categories{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.category{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;transition:transform .18s,border-color .18s,box-shadow .18s}
.category:hover{transform:translateY(-3px);border-color:#8faa96;box-shadow:0 8px 24px #263d3308}
.category-icon{display:inline-flex;background:#edf2e8;padding:12px;border-radius:12px;margin-bottom:18px;color:var(--green)}
.category:nth-child(3n) .category-icon{background:#faf0e5;color:#a3572e}
.category:nth-child(3n + 2) .category-icon{background:#edf1f4;color:#4c6d7f}
.category h3{font-size:20px;margin:0 0 7px}
.category p{font-size:14px;color:var(--muted);min-height:52px;margin:0 0 22px}
.category-bottom{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.category-bottom b{color:var(--green);font-weight:400}
.reading{max-width:1200px;margin:auto;padding:28px 28px 0}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb span{margin:0 10px;color:#8b9a8d}
.reading-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:44px;align-items:start}
.sidebar{position:sticky;top:104px;max-height:calc(100vh - 130px);overflow:auto;padding-right:10px}
.sidebar-label{font-size:11px;letter-spacing:2px;color:var(--muted);margin:0 0 16px}
.sidebar nav a,.mobile-directory nav a{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:11px 12px;border-radius:8px;font-size:14px}
.sidebar nav a:hover,.mobile-directory nav a:hover{background:#e9eee3}
.sidebar nav a[aria-current="location"],.mobile-directory nav a[aria-current="location"]{background:rgba(36,92,71,.09);color:var(--green);font-weight:700;box-shadow:inset 3px 0 rgba(36,92,71,.28)}
.sidebar nav a[aria-current="location"] span,.mobile-directory nav a[aria-current="location"] span{color:var(--muted)}
.sidebar nav span,.mobile-directory nav span{font-size:11px;color:var(--muted);flex-shrink:0}
.sidebar-home{display:block;border-top:1px solid var(--line);margin-top:24px;padding:18px 12px;font-size:13px}
.category-heading{padding:0 0 22px;border-bottom:1px solid var(--line)}
.category-heading h2{font-size:34px;line-height:1.4;margin:8px 0 12px}
.category-description{font-size:16px;color:var(--muted);margin:0 0 12px}
.intro{font-size:13px;color:var(--muted);margin:0}
.reading-tip{font-size:13px;color:var(--muted);margin:20px 0 12px}
.mobile-directory{display:none}
.topic{scroll-margin-top:100px;padding-top:32px}
.topic-heading{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.topic-number{font-size:12px;color:var(--orange);border:1px solid #e5c9b5;border-radius:6px;padding:0 7px}
.topic h3{font-size:21px;margin:0;line-height:1.5}
.topic-count{font-size:12px;color:var(--muted);margin-left:auto;white-space:nowrap}
article{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 30px;margin:14px 0;box-shadow:0 3px 9px #253c3303}
article h4{font-size:20px;line-height:1.65;margin:0 0 17px;font-weight:700}
.bar-actions{display:flex;align-items:center;gap:14px}
.favorites-link{font-size:13px;white-space:nowrap}
.favorite-count{font-size:11px;background:#e7eee2;padding:1px 6px;border-radius:5px;margin-left:4px}
.card-heading{display:flex;align-items:flex-start;gap:14px}
.card-heading h4{flex:1}
.card-heading h4{min-width:0;overflow-wrap:anywhere}
.quick-condition{font-size:13px;line-height:1.85;color:var(--muted);margin:14px 0 0;overflow-wrap:anywhere}
.quick-condition b{font-weight:500;color:var(--green)}
.quick-condition span{font-size:12px}
.delete-note{background:transparent;color:var(--muted);border:1px solid var(--line);border-radius:7px;padding:7px 14px;font-size:13px}
.export-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:20px 0}
button{font:inherit;cursor:pointer}
button:focus-visible,textarea:focus-visible{outline:3px solid #c37542;outline-offset:3px}
.favorite-button{background:transparent;border:1px solid var(--line);border-radius:9px;width:38px;height:38px;flex-shrink:0;color:#788c7d;display:grid;place-items:center}
.favorite-button svg{width:21px;height:21px}
.favorite-button[aria-pressed="true"]{color:#ac652a;background:#fbf1e3;border-color:#e2c69b}
.favorite-button[aria-pressed="true"] svg{fill:#e9c789}
button:disabled{cursor:wait;opacity:.5}
.card-tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px;max-width:100%;min-width:0}
.card-tools>details{min-width:0;max-width:100%;overflow-wrap:anywhere}
.card-tools>details[open]{grid-column:1/-1}
.note-editor>summary{font-size:13px;color:var(--green);cursor:pointer;list-style:none;padding:15px 0 4px}
.note-editor>summary::-webkit-details-marker{display:none}
.note-editor>summary::after{content:" ✎"}
.note-form{background:#f6f7f2;border:1px solid #e1e6da;border-radius:10px;padding:18px;margin-top:12px}
.note-form label{display:block;font-size:13px;margin-bottom:10px;color:var(--muted)}
.note-form textarea{display:block;width:100%;min-height:130px;resize:vertical;border:1px solid #cbd6c5;border-radius:8px;background:#fff;padding:12px;font:15px/1.8 "Microsoft YaHei",system-ui,sans-serif;color:var(--ink)}
.note-actions{display:flex;align-items:center;gap:15px;margin-top:12px;flex-wrap:wrap}
.save-note{background:var(--green);color:white;border:0;border-radius:7px;padding:7px 14px;font-size:13px}
.note-status{font-size:12px;color:var(--muted)}
.home-saved{margin:0 0 28px;font-size:14px}
.collection{max-width:850px;margin:auto;padding:32px 28px 0;min-height:60vh}
.collection h1{font-size:32px;margin:8px 0}
.collection-info{color:var(--muted);font-size:14px;margin-bottom:26px}
.empty-collection{background:#fff;border:1px dashed #c5d0be;border-radius:14px;text-align:center;padding:45px 20px}
.empty-collection p{color:var(--muted);font-size:15px;margin-bottom:22px}
.saved-category{font-size:12px;color:var(--muted);margin-bottom:12px}
.storage-error{background:#fcf0e5;border:1px solid #dfbb9b;border-radius:8px;padding:12px 16px;color:#7d4321;font-size:14px}
@media(max-width:720px){.bar-actions{gap:8px}.favorites-link{font-size:12px}.favorite-count{display:none}.collection{padding:25px 18px 0}.collection h1{font-size:28px}.note-form{padding:14px}.favorite-button{width:34px;height:34px}.brand{font-size:14px}}
.takeaway{border-left:3px solid #d19a71;padding:0 0 0 15px;margin-bottom:8px}
.takeaway-label{display:block;color:var(--orange);font-size:11px;font-weight:700;letter-spacing:1px;margin-bottom:5px}
.conclusion{font-size:16px;color:#3b5145;margin:0;line-height:1.9;overflow-wrap:anywhere}
.fulltext>summary{display:inline-block;color:var(--green);font-size:13px;cursor:pointer;padding:15px 0 4px;list-style:none}
.fulltext>summary::-webkit-details-marker{display:none}
.fulltext>summary::after{content:" ↓";padding-left:5px}
.fulltext[open]>summary::after{content:" ↑"}
.fulltext[open]>summary{display:block;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:20px}
.id{font-size:12px;color:var(--muted);margin:20px 0}
article h5{font-size:15px;margin:23px 0 8px}
.fulltext p{font-size:16px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.95;margin:8px 0 16px;color:#3e5046}
.extra{background:#f6f7f2;border-radius:8px;padding:0 14px;margin:12px 0;border:1px solid #e7e9df}
.extra summary{cursor:pointer;font-size:14px;padding:12px 0;color:var(--green)}
.extra p{font-size:15px}
.extra a{font-size:14px;display:inline-block;margin-bottom:14px;text-decoration:underline;text-underline-offset:4px}
.cross-intro{font-size:14px;color:var(--muted);margin-top:0}
footer{max-width:1200px;margin:55px auto 0;padding:28px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);line-height:2}
footer p{margin:0 0 8px;max-width:850px}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
@media(max-width:900px){.categories{grid-template-columns:repeat(2,1fr)}.reading-grid{grid-template-columns:180px minmax(0,1fr);gap:25px}.hero{gap:20px}.book{padding:20px}.book-inner{padding:23px 20px}.book strong{font-size:25px}}
@media(max-width:720px){html{scroll-padding-top:90px}.bar-inner{padding:13px 18px;gap:8px}.brand{font-size:15px;gap:8px}.brand svg{width:29px;height:29px}.edition{display:none}.switch summary{padding:6px 9px;font-size:12px}.home{padding:35px 18px 0}.hero{display:block;padding-bottom:35px}.hero h1{font-size:32px}.subtitle{font-size:20px}.hero-copy{font-size:15px}.book{display:none}.section-head{display:block}.section-head p{margin-top:7px}.categories{gap:12px}.category{padding:19px 16px}.category-icon{padding:10px;margin-bottom:12px}.category h3{font-size:18px}.category p{font-size:13px;min-height:48px;margin-bottom:18px}.category-bottom{font-size:11px}.reading{padding:22px 18px 0}.reading-grid{display:block}.sidebar{display:none}.category-heading h2{font-size:29px}.category-description{font-size:15px}.mobile-directory{display:block;background:#edf1e7;border:1px solid #dce2d4;border-radius:10px;padding:0 14px;margin-top:20px}.mobile-directory>summary{cursor:pointer;font-size:14px;padding:12px 0;color:var(--green)}.mobile-directory nav{padding-bottom:10px}.topic{padding-top:26px}.topic h3{font-size:19px}.topic-heading{gap:10px}.topic-number{font-size:11px}article{padding:22px 20px}article h4{font-size:18px}.conclusion,.fulltext p{font-size:16px}.extra{padding:0 12px}.extra p{font-size:15px}footer{margin-top:36px;padding:24px 18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.category{transition:none}}
.scenario-entry{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:24px;border:1px solid #d2ddca;border-radius:12px;background:#edf2e7;padding:22px 26px}
.scenario-entry b{display:block;font-size:17px;margin-bottom:5px}
.scenario-entry small{display:block;font-size:13px;color:var(--muted)}
.scenario-entry strong{font-size:14px;white-space:nowrap}
.scenes-home{padding-top:30px}
.scenes-home h1{font-size:34px;line-height:1.5;margin:12px 0}
.scene-intro{color:var(--muted);font-size:15px;margin:0 0 22px}
.scene-group-nav{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:30px}
.scene-group-nav a{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 12px;font-size:13px}
.scene-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:start}
.scene-group{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;scroll-margin-top:130px}
.scene-group-heading{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:16px}
.scene-group-heading h2{font-size:21px;margin:0}
.scene-group-heading>span{font-size:12px;color:var(--muted);white-space:nowrap}
.scene-link{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:15px 0;border-bottom:1px solid #edf0e7;min-height:55px}
.scene-link>span{font-size:15px;overflow-wrap:anywhere;min-width:0}
.scene-link small{font-size:11px;color:var(--muted);white-space:nowrap}
.scene-link b{margin-left:10px;color:var(--green);font-weight:400}
.scene-link:hover>span{text-decoration:underline;text-underline-offset:4px}
.scene-more>summary{cursor:pointer;font-size:13px;padding:16px 0 0;color:var(--green)}
@media(max-width:720px){.scenario-entry{display:block;padding:19px}.scenario-entry strong{display:block;margin-top:13px}.scene-groups{grid-template-columns:minmax(0,1fr);gap:16px}.scene-group{padding:20px}.scenes-home h1{font-size:28px}.scene-link{gap:12px}.scene-group-nav{gap:7px}.bar-actions{flex-wrap:wrap;gap:12px}.scene-link>span{font-size:14px}}
@media(max-width:720px){.bar-inner{flex-wrap:wrap}.brand{flex:1;min-width:0}.bar-actions{width:100%;justify-content:flex-end;padding-top:5px;gap:16px}.sitebar .bar-inner{padding-top:10px;padding-bottom:10px}.reading-content{min-width:0}.note-form textarea{font-size:16px;min-height:150px}.save-note,.delete-note{min-height:44px}.favorite-button{width:44px;height:44px}.card-tools{column-gap:12px}.note-actions{gap:10px}.collection-info{overflow-wrap:anywhere}.card-tools>details>summary{min-height:44px}.category-heading,.topic,article{max-width:100%}}