:root{--font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", system-ui, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;--text-xs: 12px;--text-sm: 13px;--text-base: 14px;--text-md: 15px;--text-lg: 17px;--text-xl: 20px;--text-2xl: 24px;--text-display: clamp(30px, 6.2cqi, 64px);--leading-normal: 1.7;--leading-tight: 1.35;--weight-light: 300;--weight-normal: 400;--weight-medium: 500;--weight-bold: 600;--color-primary: #1f3b33;--color-primary-hover: #2a4d43;--color-primary-active: #17302a;--color-primary-soft: #e3ebe6;--color-primary-border: #b7c8bf;--color-ink-deep: #12241f;--color-accent: #c9a25a;--color-accent-text: #7a5a1c;--color-accent-soft: #f4ecdc;--color-bg: #eef0ec;--color-surface: #ffffff;--color-surface-sunken: #f5f6f3;--color-surface-hover: #e9ece7;--color-text: #1c2125;--color-text-secondary: #485056;--color-text-muted: #5f686d;--color-text-disabled: #9aa3a0;--color-text-inverse: #ffffff;--color-text-on-dark: #e9efec;--color-text-on-dark-muted: #9fb3aa;--color-border: #dce0da;--color-border-strong: #c3c9c1;--color-border-input: #858f89;--color-divider: #e6e9e4;--color-success: #1f7a4f;--color-success-soft: #e4f2ea;--color-warning: #8a5600;--color-warning-soft: #f9efdb;--color-danger: #a8342a;--color-danger-soft: #f8e9e6;--color-info: #2f5d82;--color-info-soft: #e6eef5;--color-focus: #1f3b33;--color-focus-on-dark: #e3cf9f;--ease-out: cubic-bezier(.16, 1, .3, 1);--duration-fast: .15s;--duration-base: .24s;--duration-slow: .7s;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-7: 28px;--space-8: 32px;--space-10: 40px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-pill: 999px;--shadow-sm: 0 1px 2px rgba(18, 36, 31, .06);--shadow-md: 0 2px 8px rgba(18, 36, 31, .08);--shadow-lg: 0 12px 32px rgba(18, 36, 31, .12);--student-max-width: 760px;--student-sidebar-width: 240px;--admin-sidebar-width: 224px;--admin-content-max-width: 1280px;--header-height: 56px;--tap-target: 44px}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;text-size-adjust:100%}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}[data-surface=dark] :focus-visible{outline-color:var(--color-focus-on-dark)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}h1,h2,h3,h4,p{margin:0}.lpl-page-title{font-size:var(--text-xl);font-weight:var(--weight-bold);line-height:var(--leading-tight)}.lpl-section-title{font-size:var(--text-md);font-weight:var(--weight-bold)}.lpl-muted{color:var(--color-text-muted)}.lpl-secondary{color:var(--color-text-secondary)}.lpl-small{font-size:var(--text-sm)}.lpl-mono{font-family:var(--font-mono);font-size:var(--text-sm)}.lpl-citation-badge{border:1px solid var(--color-border);background:var(--color-surface, #fff);color:var(--color-primary, #1f6f5c);border-radius:999px;padding:0 7px;font-family:var(--font-mono);font-size:var(--text-sm);line-height:20px;cursor:pointer}.lpl-citation-badge:hover,.lpl-citation-badge:focus-visible{border-color:var(--color-primary, #1f6f5c);background:var(--color-primary-soft, #eef6f2)}.lpl-stack{display:flex;flex-direction:column;gap:var(--space-4)}.lpl-row{display:flex;align-items:center;gap:var(--space-2)}.lpl-row-between{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}.lpl-wrap{display:flex;flex-wrap:wrap;gap:var(--space-2)}.lpl-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.lpl-card-pad{padding:var(--space-4)}.lpl-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-10) var(--space-4);text-align:center;color:var(--color-text-secondary)}.lpl-state-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:var(--radius-pill);background:var(--color-surface-sunken);color:var(--color-text-muted);font-size:var(--text-xl)}.lpl-state-title{font-size:var(--text-md);font-weight:var(--weight-bold);color:var(--color-text)}.lpl-state-desc{font-size:var(--text-sm);max-width:34em}.lpl-state-error .lpl-state-icon{background:var(--color-danger-soft);color:var(--color-danger)}.lpl-state-locked .lpl-state-icon{background:var(--color-warning-soft);color:var(--color-warning)}.lpl-block+.lpl-block{margin-top:var(--space-3)}.lpl-block-paragraph{white-space:pre-wrap;word-break:break-word}.lpl-block-list{margin:0;padding-left:1.35em}.lpl-block-list li+li{margin-top:var(--space-1)}.lpl-block-table{width:100%;border-collapse:collapse;font-size:var(--text-sm)}.lpl-block-table th,.lpl-block-table td{border:1px solid var(--color-border);padding:var(--space-2) var(--space-3);text-align:left;vertical-align:top;word-break:break-word}.lpl-block-table tr:first-child td{background:var(--color-surface-sunken);font-weight:var(--weight-medium)}.lpl-block-image{display:block;margin:0}.lpl-block-image img{max-width:100%;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface-sunken);cursor:zoom-in}.lpl-block-image figcaption{margin-top:var(--space-2);font-size:var(--text-sm);color:var(--color-text-muted)}.lpl-image-missing{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3);border:1px dashed var(--color-border-strong);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:var(--text-sm)}.lpl-student-shell{display:flex;min-height:100%;background:var(--color-bg)}.lpl-student-sidebar{position:sticky;top:0;align-self:flex-start;flex:0 0 var(--student-sidebar-width);height:100vh;max-height:100vh;display:flex;flex-direction:column;overflow:hidden;background:var(--color-primary);color:var(--color-text-on-dark)}.lpl-student-brand{flex:none;padding:var(--space-5) var(--space-4) var(--space-4);border-bottom:1px solid color-mix(in srgb,var(--color-text-inverse) 16%,transparent)}.lpl-student-brand-name{font-size:var(--text-md);font-weight:var(--weight-bold)}.lpl-student-nav{flex:1;min-height:0;padding:var(--space-3) var(--space-2);overflow-y:auto}.lpl-student-body{flex:1;min-width:0;display:flex;flex-direction:column}.lpl-student-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);min-height:var(--header-height);padding:var(--space-2) var(--space-4);background:var(--color-surface);border-bottom:1px solid var(--color-border)}.lpl-student-header-title{flex:1;min-width:0;font-size:var(--text-md);font-weight:var(--weight-bold);overflow-wrap:anywhere}.lpl-student-drawer-toggle{display:none}.lpl-student-rail-foot{flex:none;padding:var(--space-3) var(--space-2) var(--space-4);border-top:1px solid color-mix(in srgb,var(--color-text-inverse) 16%,transparent)}.lpl-student-rail-link{display:flex;align-items:center;gap:var(--space-2);width:100%;min-height:40px;padding:0 var(--space-3);border:none;border-radius:var(--radius-md);background:none;color:var(--color-text-on-dark-muted);text-align:left;font:inherit;cursor:pointer}.lpl-student-rail-link:hover{background:color-mix(in srgb,var(--color-text-inverse) 6%,transparent);color:var(--color-text-inverse)}.lpl-student-account{display:flex;align-items:center;gap:var(--space-2);flex:none;background:none;border:none;padding:var(--space-1) var(--space-2);min-height:var(--tap-target);color:var(--color-text-secondary);cursor:pointer;font:inherit}.lpl-student-avatar{display:grid;place-items:center;flex:none;width:32px;height:32px;border-radius:50%;background:var(--color-primary);color:var(--color-text-inverse);font-size:var(--text-sm)}@media(max-width:480px){.lpl-student-account-name{display:none}}.lpl-student-main{flex:1;width:100%;max-width:var(--student-max-width);margin:0 auto;padding:var(--space-4)}@media(min-width:1100px){.lpl-student-main{padding:var(--space-6) var(--space-8) var(--space-8)}}.lpl-student-nav-menu.ant-menu{background:transparent;border-inline-end:none;font-size:var(--text-base)}.lpl-student-nav-menu.ant-menu .ant-menu-submenu-title,.lpl-student-nav-menu.ant-menu .ant-menu-item{height:auto;min-height:38px;line-height:1.5;padding-block:var(--space-2);margin-inline:0;border-radius:var(--radius-sm)}.lpl-student-sidebar .lpl-student-nav-menu.ant-menu,.lpl-student-drawer .lpl-student-nav-menu.ant-menu{color:var(--color-text-on-dark)}.lpl-student-sidebar .lpl-student-nav-menu.ant-menu .ant-menu-submenu-title,.lpl-student-sidebar .lpl-student-nav-menu.ant-menu .ant-menu-item,.lpl-student-drawer .lpl-student-nav-menu.ant-menu .ant-menu-submenu-title,.lpl-student-drawer .lpl-student-nav-menu.ant-menu .ant-menu-item{color:var(--color-text-on-dark-muted)}.lpl-student-sidebar .lpl-student-nav-menu.ant-menu .ant-menu-submenu-title:hover,.lpl-student-sidebar .lpl-student-nav-menu.ant-menu .ant-menu-item:hover,.lpl-student-drawer .lpl-student-nav-menu.ant-menu .ant-menu-submenu-title:hover,.lpl-student-drawer .lpl-student-nav-menu.ant-menu .ant-menu-item:hover{background:color-mix(in srgb,var(--color-text-inverse) 6%,transparent);color:var(--color-text-inverse)}.lpl-student-sidebar .lpl-student-nav-menu.ant-menu .ant-menu-item-selected,.lpl-student-drawer .lpl-student-nav-menu.ant-menu .ant-menu-item-selected{background:color-mix(in srgb,var(--color-text-inverse) 12%,transparent);color:var(--color-text-inverse);font-weight:var(--weight-medium)}.lpl-student-sidebar .lpl-student-nav-menu.ant-menu .ant-menu-item-disabled,.lpl-student-sidebar .lpl-student-nav-menu.ant-menu .ant-menu-submenu-disabled .ant-menu-submenu-title,.lpl-student-drawer .lpl-student-nav-menu.ant-menu .ant-menu-item-disabled,.lpl-student-drawer .lpl-student-nav-menu.ant-menu .ant-menu-submenu-disabled .ant-menu-submenu-title{color:color-mix(in srgb,var(--color-text-on-dark-muted) 55%,transparent)}.lpl-student-sidebar :focus-visible,.lpl-student-drawer :focus-visible{outline-color:var(--color-focus-on-dark)}.lpl-student-nav-menu .ant-menu-title-content{white-space:normal;overflow-wrap:anywhere}.lpl-student-nav-label{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);min-width:0}.lpl-student-nav-text{min-width:0}.lpl-student-nav-badge{flex:none;padding:0 var(--space-2);border:1px solid color-mix(in srgb,var(--color-text-inverse) 28%,transparent);border-radius:var(--radius-pill);color:var(--color-text-on-dark-muted);font-size:var(--text-xs);line-height:18px}.lpl-student-nav-badge[data-status=no_permission]{border-color:color-mix(in srgb,var(--color-focus-on-dark) 45%,transparent);color:var(--color-focus-on-dark)}.lpl-student-nav-menu.ant-menu .ant-menu-item-disabled,.lpl-student-nav-menu.ant-menu .ant-menu-submenu-disabled .ant-menu-submenu-title{cursor:not-allowed}.lpl-student-drawer .ant-drawer-content,.lpl-student-drawer .ant-drawer-header,.lpl-student-drawer .ant-drawer-body{background:var(--color-primary);color:var(--color-text-on-dark)}.lpl-student-drawer .ant-drawer-header{border-bottom:1px solid color-mix(in srgb,var(--color-text-inverse) 16%,transparent)}.lpl-student-drawer .ant-drawer-title{color:var(--color-text-inverse)}.lpl-student-drawer .ant-drawer-close{color:var(--color-text-on-dark-muted)}.lpl-student-drawer .ant-drawer-close:hover{color:var(--color-text-inverse)}.lpl-kb-search{display:flex;flex-wrap:wrap;gap:var(--space-2);align-items:center}.lpl-kb-search .ant-input-affix-wrapper{flex:1;min-width:200px}.lpl-qa-list{margin:0;padding:0;list-style:none;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.lpl-qa-list>li+li{border-top:1px solid var(--color-border)}.lpl-qa-item{overflow:hidden}.lpl-qa-question{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-3);width:100%;min-height:var(--tap-target);padding:var(--space-3) var(--space-4);background:none;border:none;text-align:left;font:inherit;color:var(--color-text);cursor:pointer}.lpl-qa-question:hover{background:var(--color-surface-hover)}.lpl-qa-question:focus-visible{outline:2px solid var(--color-focus);outline-offset:-2px}.lpl-qa-question-text{min-width:0;overflow-wrap:anywhere}.lpl-qa-chapter{display:flex;flex-wrap:wrap;gap:var(--space-2);padding:0 var(--space-4) var(--space-2)}.lpl-qa-snippet{overflow-wrap:anywhere}.lpl-qa-answer{padding:var(--space-3) var(--space-4) var(--space-4);border-top:1px solid var(--color-divider);background:var(--color-surface-sunken)}.lpl-home{display:flex;flex-direction:column;gap:var(--space-7)}.lpl-hello{margin:0;padding-top:var(--space-2);font-size:var(--text-2xl);font-weight:var(--weight-bold);line-height:var(--leading-tight)}.lpl-hello>small{display:block;margin-top:var(--space-1);font-size:var(--text-sm);font-weight:var(--weight-normal);color:var(--color-text-muted)}.lpl-home-grid{display:flex;flex-direction:column;gap:var(--space-7)}@media(min-width:760px){.lpl-home-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--space-7);align-items:start}}.lpl-home-block{display:flex;flex-direction:column;gap:var(--space-3)}.lpl-module-list{display:grid;gap:var(--space-3);margin:0;padding:0;list-style:none}.lpl-module-card{display:flex;flex-direction:column;gap:var(--space-3)}.lpl-module-meta{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-1) var(--space-3);font-size:var(--text-sm);color:var(--color-text-muted)}.lpl-progress{height:6px;border-radius:var(--radius-pill);background:var(--color-surface-hover);overflow:hidden}.lpl-progress>i{display:block;height:100%;border-radius:var(--radius-pill);background:var(--color-accent)}.lpl-progress[data-tone=dark]{background:color-mix(in srgb,var(--color-text-inverse) 14%,transparent)}.lpl-progress[data-tone=dark]>i{background:var(--color-focus-on-dark)}.lpl-list{margin:0;padding:0;list-style:none;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.lpl-list>li+li{border-top:1px solid var(--color-border)}.lpl-list-row{display:flex;align-items:center;gap:var(--space-3);width:100%;min-height:56px;padding:var(--space-2) var(--space-4);border:none;background:none;text-align:left;font:inherit;color:inherit;cursor:pointer}.lpl-list-row:hover{background:var(--color-surface-sunken)}.lpl-list-row[aria-disabled=true]{cursor:default}.lpl-list-row[aria-disabled=true]:hover{background:none}.lpl-list-row-icon{display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:10px;background:var(--color-primary-soft);color:var(--color-primary)}.lpl-list-row[data-status=planned] .lpl-list-row-icon{background:var(--color-surface-sunken);color:var(--color-text-muted)}.lpl-list-row-body{flex:1;min-width:0}.lpl-list-row-title{display:block;font-weight:var(--weight-medium)}.lpl-list-row-sub{display:block;font-size:var(--text-sm);color:var(--color-text-muted);line-height:1.5}.lpl-list-row-count{margin-left:var(--space-2)}.lpl-list-row-end{flex:none;display:flex;align-items:center;gap:var(--space-2);color:var(--color-text-muted)}.lpl-admin-shell{display:flex;min-height:100%}.lpl-admin-sidebar{position:sticky;top:0;align-self:flex-start;flex:0 0 var(--admin-sidebar-width);height:100vh;max-height:100vh;background:var(--color-primary);color:var(--color-text-on-dark);display:flex;flex-direction:column;overflow:hidden}.lpl-admin-brand{padding:var(--space-5) var(--space-4) var(--space-4);border-bottom:1px solid color-mix(in srgb,var(--color-text-inverse) 16%,transparent)}.lpl-admin-brand-name{font-size:var(--text-md);font-weight:var(--weight-bold)}.lpl-admin-nav{flex:1;min-height:0;display:flex;flex-direction:column;gap:2px;padding:var(--space-3) var(--space-2);overflow-y:auto}.lpl-admin-nav-group{padding:var(--space-3) var(--space-3) var(--space-1);font-size:var(--text-xs);color:var(--color-text-on-dark-muted);letter-spacing:.04em}.lpl-admin-nav-link{display:flex;align-items:center;gap:var(--space-2);min-height:36px;padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);color:var(--color-text-on-dark-muted);text-decoration:none;font-size:var(--text-base)}.lpl-admin-nav-link:hover{background:color-mix(in srgb,var(--color-text-inverse) 6%,transparent);color:var(--color-text-inverse)}.lpl-admin-nav-link[data-active=true]{background:color-mix(in srgb,var(--color-text-inverse) 12%,transparent);color:var(--color-text-inverse);font-weight:var(--weight-medium)}.lpl-admin-main{flex:1;min-width:0;display:flex;flex-direction:column}.lpl-admin-drawer-toggle{display:none;align-items:center;justify-content:center;flex:none;width:var(--tap-target);height:var(--tap-target);padding:0;background:none;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--text-lg);line-height:1;cursor:pointer}.lpl-admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:var(--space-4) var(--space-6);background:var(--color-surface);border-bottom:1px solid var(--color-border)}.lpl-admin-content{flex:1;width:100%;min-width:0;max-width:var(--admin-content-max-width);margin:0 auto;padding:var(--space-6)}@media(min-width:1440px){.lpl-admin-content{padding:var(--space-8)}}.lpl-admin-footer{padding:var(--space-4) var(--space-6);border-top:1px solid var(--color-divider);color:var(--color-text-muted);font-size:var(--text-xs)}.lpl-tagcard{position:relative;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.lpl-tagcard-tag{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4) 0;font-size:var(--text-sm);color:var(--color-text-muted)}.lpl-tagcard-hole{flex:none;width:10px;height:10px;border-radius:50%;border:2px solid var(--color-accent);background:var(--color-bg)}.lpl-tagcard-code{color:var(--color-accent-text);font-weight:var(--weight-bold);letter-spacing:.02em}.lpl-tagcard-body{padding:var(--space-2) var(--space-4) var(--space-4)}.lpl-tagcard-q{margin:0 0 var(--space-3);font-size:var(--text-md);font-weight:var(--weight-bold);line-height:1.45}.lpl-tagcard-perf{position:relative;height:0;margin:0 var(--space-3);border-top:2px dashed var(--color-border-strong)}.lpl-tagcard-perf:before,.lpl-tagcard-perf:after{content:"";position:absolute;top:-10px;width:18px;height:18px;border-radius:50%;background:var(--color-bg);border:1px solid var(--color-border)}.lpl-tagcard-perf:before{left:-22px;clip-path:inset(0 0 0 50%)}.lpl-tagcard-perf:after{right:-22px;clip-path:inset(0 50% 0 0)}.lpl-tagcard-foot{padding:var(--space-3) var(--space-4);font-size:var(--text-sm);color:var(--color-text-muted)}.lpl-tagcard-actions{margin-top:var(--space-3)}.lpl-suggest{display:flex;flex-direction:column;gap:var(--space-2)}.lpl-suggest-btn{display:flex;align-items:center;gap:var(--space-3);min-height:var(--tap-target);padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);text-align:left;font:inherit;color:inherit;cursor:pointer}.lpl-suggest-btn:hover:not(:disabled){border-color:var(--color-primary)}.lpl-suggest-btn:disabled{color:var(--color-text-disabled);cursor:not-allowed}.lpl-admin-drawer .ant-drawer-content,.lpl-admin-drawer .ant-drawer-header,.lpl-admin-drawer .ant-drawer-body{background:var(--color-primary);color:var(--color-text-on-dark)}.lpl-admin-drawer .ant-drawer-header{border-bottom:1px solid color-mix(in srgb,var(--color-text-inverse) 16%,transparent)}.lpl-admin-drawer .ant-drawer-title{color:var(--color-text-inverse)}.lpl-admin-drawer .ant-drawer-close{color:var(--color-text-on-dark-muted)}.lpl-admin-drawer .ant-drawer-close:hover{color:var(--color-text-inverse)}.lpl-admin-drawer :focus-visible{outline-color:var(--color-focus-on-dark)}.lpl-thread{display:flex;flex-direction:column;gap:var(--space-4)}.lpl-bubble-user{align-self:flex-end;max-width:85%;padding:var(--space-3) var(--space-4);background:var(--color-primary);color:var(--color-text-inverse);border-radius:var(--radius-lg) var(--radius-lg) var(--radius-sm) var(--radius-lg);white-space:pre-wrap;word-break:break-word}.lpl-bubble-assistant{align-self:stretch}.lpl-system-note{padding:var(--space-1) 0 var(--space-1) var(--space-3);border-left:3px solid var(--color-border-strong);font-size:var(--text-sm);color:var(--color-text-secondary)}.lpl-system-note[data-tone=warning]{border-left-color:var(--color-warning)}.lpl-system-note[data-tone=danger]{border-left-color:var(--color-danger)}.lpl-system-note[data-tone=info]{border-left-color:var(--color-primary)}.lpl-composer{position:sticky;bottom:0;display:flex;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--color-surface);border-top:1px solid var(--color-border)}@media(min-width:721px){.lpl-student-main{padding:var(--space-6) var(--space-4)}}@media(max-width:720px){.lpl-student-sidebar{display:none}.lpl-student-drawer-toggle{display:inline-flex;align-items:center;justify-content:center;flex:none;width:var(--tap-target);height:var(--tap-target);padding:0;background:none;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--text-lg);line-height:1;cursor:pointer}}@media(max-width:900px){.lpl-admin-shell{flex-direction:column;min-width:0;overflow-x:hidden}.lpl-admin-sidebar{display:none}.lpl-admin-drawer-toggle{display:inline-flex}.lpl-admin-topbar{flex-wrap:wrap}.lpl-admin-content{overflow-x:auto}.lpl-admin-content,.lpl-admin-topbar,.lpl-admin-footer{padding-left:var(--space-4);padding-right:var(--space-4)}}.lpl-kb-layout{display:grid;grid-template-columns:minmax(260px,380px) minmax(0,1fr);gap:var(--space-4);align-items:start}.lpl-kb-tree{display:flex;flex-direction:column;gap:var(--space-2);position:sticky;top:var(--space-4);max-height:calc(100vh - 96px);overflow-y:auto;padding-right:4px}.lpl-kb-mobile-tools{display:none}@media(max-width:900px){.lpl-kb-mobile-tools{display:flex;justify-content:flex-end;margin-bottom:var(--space-2)}.lpl-kb-tree{display:none}}.lpl-kb-tree-head{display:flex;flex-direction:column;gap:var(--space-1);align-items:flex-start}.lpl-kb-topic-list{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-3);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.lpl-kb-topic-row{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-2);padding:var(--space-1) 0}.lpl-kb-doc{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.lpl-kb-doc-title{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);padding:var(--space-2) var(--space-3);font-weight:600;cursor:pointer;background:color-mix(in srgb,var(--color-surface) 92%,var(--color-text) 8%)}.lpl-kb-doc .lpl-qa-list{border:none;border-radius:0}.lpl-qa-item[data-selected=true]{background:var(--color-surface-hover);box-shadow:inset 3px 0 0 var(--color-primary)}.lpl-kb-reading{min-width:0;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4);min-height:360px}.lpl-kb-article{display:flex;flex-direction:column;gap:var(--space-2)}.lpl-kb-article-head{display:flex;flex-direction:column;gap:var(--space-1);padding-bottom:var(--space-2);border-bottom:1px solid var(--color-border);margin-bottom:var(--space-2)}@media(max-width:960px){.lpl-kb-layout{grid-template-columns:1fr}.lpl-kb-tree{position:static;max-height:none}.lpl-kb-reading{min-height:240px}}.lpl-kb-other-bases{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-2);border:1px dashed var(--color-border);border-radius:var(--radius-lg)}.lpl-doc-item{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-3) 0;border-bottom:1px solid var(--color-border)}.lpl-doc-item:last-child{border-bottom:none}.lpl-doc-item .lpl-section-title{margin:0}.lpl-wordmark{display:inline-flex;align-items:baseline;gap:10px;line-height:1.2;white-space:nowrap}.lpl-wordmark b{font-weight:var(--weight-bold);font-size:var(--text-lg);letter-spacing:.14em;color:var(--color-primary)}.lpl-wordmark span{padding-left:10px;border-left:1px solid var(--color-accent);font-size:var(--text-sm);color:var(--color-accent-text)}.lpl-wordmark[data-tone=dark] b{color:var(--color-text-inverse)}.lpl-wordmark[data-tone=dark] span{color:var(--color-accent)}.lpl-band{position:relative;flex:none;height:200px;overflow:hidden;background:var(--color-ink-deep) var(--lpl-leather) center / cover no-repeat}.lpl-band:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--color-primary);mix-blend-mode:color;opacity:.85}.lpl-band:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to bottom,var(--color-ink-deep) 0%,transparent 55%)}.lpl-stitch{position:absolute;z-index:1;top:14px;right:20px;left:20px;border-top:1.5px dashed color-mix(in srgb,var(--color-accent) 80%,transparent)}.lpl-site{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:var(--color-ink-deep);color:var(--color-text-on-dark)}.lpl-site-bar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:14px 20px}.lpl-site-login{min-height:var(--tap-target);padding:0 24px;border:1px solid var(--color-accent);border-radius:var(--radius-md);background:transparent;color:var(--color-accent);cursor:pointer;font:inherit;letter-spacing:.2em;transition:background var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out)}.lpl-site-login:hover{background:var(--color-accent);color:var(--color-ink-deep)}.lpl-site-hero{flex:1;display:flex;flex-direction:column;justify-content:flex-end;gap:18px;padding:56px 20px 40px}.lpl-site-title{margin:0;max-width:14em;font-size:clamp(30px,6.2vw,64px);font-weight:var(--weight-light);line-height:1.25;letter-spacing:.04em;color:var(--color-text-inverse)}.lpl-site-lead{margin:0;max-width:28em;font-size:var(--text-md);color:var(--color-text-on-dark)}.lpl-site-foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 24px;padding:14px 20px 18px;background:var(--color-ink-deep);border-top:1px solid color-mix(in srgb,var(--color-accent) 30%,transparent);font-size:var(--text-xs);color:var(--color-text-on-dark-muted)}@media(prefers-reduced-motion:no-preference){.lpl-site-title,.lpl-site-lead{animation:lpl-rise var(--duration-slow) var(--ease-out) both}.lpl-site-lead{animation-delay:.12s}.lpl-site .lpl-band{animation:lpl-wipe 1.1s var(--ease-out) .18s both}}@keyframes lpl-rise{0%{opacity:0;transform:translateY(14px)}}@keyframes lpl-wipe{0%{clip-path:inset(0 0 0 100%)}to{clip-path:inset(0)}}@media(min-width:760px){.lpl-site-bar{padding:22px 56px}.lpl-site-hero{padding:72px 56px 56px;gap:22px}.lpl-site-lead{font-size:var(--text-lg)}.lpl-site .lpl-band{height:260px}.lpl-site .lpl-stitch{top:18px;right:56px;left:56px}.lpl-site-foot{padding:16px 56px 20px}}.lpl-login{min-height:100vh;min-height:100dvh;display:grid;grid-template-rows:auto 1fr;background:var(--color-bg)}.lpl-login-brand{display:flex;flex-direction:column;background:var(--color-ink-deep);color:var(--color-text-on-dark)}.lpl-login-brand-top{padding:16px 20px}.lpl-login-brand-copy,.lpl-login-brand .lpl-band{display:none}.lpl-login-main{display:flex;justify-content:center;padding:20px 20px 40px}.lpl-login-panel{width:100%;max-width:400px}.lpl-login-back{display:inline-flex;align-items:center;gap:4px;min-height:var(--tap-target);margin-bottom:8px;border:none;background:none;padding:0 var(--space-1) 0 0;color:var(--color-primary);font:inherit;cursor:pointer}.lpl-login-back svg{transform:rotate(180deg)}.lpl-login-back:hover{text-decoration:underline}.lpl-login-title{margin:0 0 16px;font-size:var(--text-2xl);font-weight:var(--weight-medium);line-height:1.35}.lpl-login-tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;margin-bottom:10px;border-radius:var(--radius-lg);background:var(--color-surface-hover)}.lpl-login-tab{min-height:var(--tap-target);border:none;border-radius:var(--radius-sm);background:none;cursor:pointer;color:var(--color-text-secondary);font:inherit;transition:background var(--duration-fast) var(--ease-out)}.lpl-login-tab:hover:not(:disabled){background:var(--color-surface-sunken)}.lpl-login-tab[aria-selected=true]{background:var(--color-surface);color:var(--color-primary);font-weight:var(--weight-bold);box-shadow:var(--shadow-sm)}.lpl-login-tab:disabled{cursor:default;color:var(--color-text-disabled)}.lpl-login-hint{margin:0 0 20px;font-size:var(--text-sm);color:var(--color-text-muted)}.lpl-login-error{margin-bottom:16px}.lpl-login-notes{margin:24px 0 0;padding:16px 0 0;border-top:1px solid var(--color-border);list-style:none;font-size:var(--text-sm);color:var(--color-text-muted)}.lpl-login-notes li+li{margin-top:4px}.lpl-login-checking{display:grid;place-items:center;min-height:320px}@media(min-width:760px){.lpl-login{grid-template-rows:none;grid-template-columns:minmax(340px,.9fr) minmax(0,1fr)}.lpl-login-brand{justify-content:space-between}.lpl-login-brand-top{padding:36px 44px}.lpl-login-brand-copy{display:block;max-width:24em;padding:0 44px 40px}.lpl-login-brand-copy strong{display:block;margin-bottom:8px;font-size:var(--text-2xl);font-weight:var(--weight-light);line-height:1.4;letter-spacing:.04em;color:var(--color-text-inverse)}.lpl-login-brand .lpl-band{display:block;height:220px}.lpl-login-brand .lpl-stitch{right:44px;left:44px}.lpl-login-main{align-items:center;padding:40px}.lpl-login-back{margin-bottom:20px}}.lpl-banner{display:flex;gap:var(--space-3);align-items:flex-start;padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface);font-size:var(--text-sm);color:var(--color-text-secondary)}.lpl-banner>svg{margin-top:2px}.lpl-banner strong{display:block;margin-bottom:2px;color:var(--color-text);font-weight:var(--weight-bold)}.lpl-banner[data-tone=seal]{background:var(--color-danger-soft);border-color:color-mix(in srgb,var(--color-danger) 28%,var(--color-surface));color:var(--color-danger)}.lpl-banner[data-tone=seal] strong{color:var(--color-danger)}