@import "https://fonts.googleapis.com/css2?family=Noto+Sans+HK:wght@300;400;500;700&family=Noto+Serif+HK:wght@400;700;900&display=swap";:root{--color-ink-black:#1a1614;--color-ink-deep:#2c2420;--color-ink-mid:#4a3f38;--color-ink-light:#8c7c72;--color-xuan-paper:#f5f0e8;--color-xuan-warm:#ede5d4;--color-vermillion:#c0392b;--color-vermillion-l:#e74c3c;--color-indigo:#2c3e6b;--color-gold:#b8860b;--color-gold-l:#d4a017;--color-correct:#4a7c59;--color-partial:#b8860b;--color-wrong:#8c3a2e;--font-sans:"Noto Sans HK", "PingFang TC", "Microsoft JhengHei", sans-serif;--font-serif:"Noto Serif HK", "Kaiti TC", serif;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--space-12:48px;--space-16:64px;--radius-sm:4px;--radius-md:8px;--radius-lg:16px;--shadow-sm:0 1px 4px #1a161426;--shadow-md:0 4px 16px #1a161440;--shadow-lg:0 8px 32px #1a161459;--transition-fast:.15s ease;--transition-normal:.3s ease;--transition-slow:.5s ease;--max-width:1200px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;font-size:16px}body{font-family:var(--font-sans);background-color:var(--color-xuan-paper);color:var(--color-ink-black);background-image:radial-gradient(at 20% 20%,#b8860b0a 0%,#0000 60%),radial-gradient(at 80% 80%,#2c3e6b0a 0%,#0000 60%);min-height:100dvh;line-height:1.7}a{color:inherit;text-decoration:none}button{font-family:var(--font-sans);cursor:pointer;background:0 0;border:none}img,svg{max-width:100%;display:block}.container{width:100%;max-width:var(--max-width);padding-inline:var(--space-4);margin-inline:auto}.font-serif{font-family:var(--font-serif)}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.ink-divider{background:linear-gradient(to right, transparent, var(--color-ink-mid) 30%, var(--color-ink-mid) 70%, transparent);opacity:.3;height:1px;margin-block:var(--space-6);border:none}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--color-xuan-warm)}::-webkit-scrollbar-thumb{background:var(--color-ink-light);border-radius:3px}._root_72b3j_1{flex-direction:column;min-height:100dvh;display:flex}._header_72b3j_8{padding:var(--space-4) var(--space-6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;background:#f5f0e8d9;border-bottom:1px solid #4a3f3826;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}._headerOpen_72b3j_21{background:var(--color-xuan-paper);-webkit-backdrop-filter:none;backdrop-filter:none}._alphaBanner_72b3j_26{background:var(--color-ink-black);color:#fff;white-space:nowrap;letter-spacing:.1em;opacity:.9;border-radius:999px;padding:2px 12px;font-size:.65rem;font-weight:700;display:none;position:absolute;left:50%;transform:translate(-50%)}@media (width>=640px){._alphaBanner_72b3j_26{display:block}}._logo_72b3j_48{align-items:center;gap:var(--space-2);flex-direction:row;line-height:1.1;text-decoration:none;display:flex}._logoImg_72b3j_57{object-fit:contain;width:36px;height:36px}._logoText_72b3j_63{flex-direction:column;display:flex}._logoHan_72b3j_68{font-family:var(--font-serif);color:var(--color-ink-black);letter-spacing:.05em;font-size:1.5rem;font-weight:900}._logoPinyin_72b3j_76{color:var(--color-ink-light);letter-spacing:.15em;text-transform:lowercase;font-size:.65rem;font-weight:400}._navDesktop_72b3j_84{align-items:center;gap:var(--space-4);display:none}@media (width>=768px){._navDesktop_72b3j_84{display:flex}}._menuBtn_72b3j_96{color:var(--color-ink-mid);cursor:pointer;padding:var(--space-2);border-radius:var(--radius-md);z-index:1100;background:0 0;border:none;justify-content:center;align-items:center;transition:all .2s;display:flex}@media (width>=768px){._menuBtn_72b3j_96{display:none}}._navMobile_72b3j_116{background:var(--color-xuan-paper);z-index:1000;padding:80px var(--space-6) var(--space-8);gap:var(--space-8);background-image:url(https://www.transparenttextures.com/patterns/natural-paper.png);flex-direction:column;display:flex;position:fixed;inset:0;overflow-y:auto}._mobileLinks_72b3j_132{gap:var(--space-6);flex-direction:column;display:flex}._mobileLinks_72b3j_132 a{font-family:var(--font-serif);color:var(--color-ink-black);letter-spacing:.1em;padding-bottom:var(--space-2);border-bottom:1px solid #4a3f381a;font-size:1.5rem;font-weight:700;text-decoration:none}._mobileActions_72b3j_149{gap:var(--space-4);flex-direction:column;display:flex}._mobileActions_72b3j_149 button{align-items:center;gap:var(--space-3);padding:var(--space-4);border-radius:var(--radius-md);font-family:var(--font-sans);color:var(--color-ink-mid);cursor:pointer;background:#0000000d;border:1px solid #0000001a;width:100%;font-size:1rem;font-weight:600;display:flex}._iconBtn_72b3j_171{cursor:pointer;transition:opacity var(--transition-fast);background:0 0;border:none;align-items:center;padding:0;font-size:1.1rem;display:flex}._iconBtn_72b3j_171:hover{opacity:.7}._navDesktop_72b3j_84 a{color:var(--color-ink-mid);letter-spacing:.05em;transition:color var(--transition-fast);font-size:.9rem;font-weight:500;text-decoration:none;position:relative}._navDesktop_72b3j_84 a:after{content:"";background:var(--color-vermillion);width:0;height:1px;transition:width var(--transition-normal);position:absolute;bottom:-2px;left:0}._navDesktop_72b3j_84 a:hover{color:var(--color-vermillion)}._navDesktop_72b3j_84 a:hover:after{width:100%}._main_72b3j_216{flex:1}._footerLinks_72b3j_220{justify-content:center;align-items:center;gap:var(--space-2);margin-bottom:var(--space-2);color:var(--color-ink-light);font-size:.8rem;display:flex}._footerLinks_72b3j_220 button{color:var(--color-ink-mid);cursor:pointer;background:0 0;border:none;padding:0;text-decoration:underline}._footerLinks_72b3j_220 button:hover{color:var(--color-vermillion)}._footer_72b3j_220{padding:var(--space-6);text-align:center;color:var(--color-ink-light);border-top:1px solid #4a3f381a;font-size:.75rem}._overlay_t2w2u_1{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:var(--space-4);z-index:2000;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}._modal_t2w2u_13{background:var(--color-xuan-paper);border:2px solid var(--color-ink-mid);border-radius:var(--radius-md);width:100%;max-width:400px;padding:var(--space-6);box-shadow:var(--shadow-xl);color:var(--color-ink-black);background-image:url(https://www.transparenttextures.com/patterns/natural-paper.png);position:relative}._title_t2w2u_26{font-family:var(--font-serif);text-align:center;margin-bottom:var(--space-4);font-size:1.25rem;font-weight:800}._content_t2w2u_34{text-align:center;margin-bottom:var(--space-6);line-height:1.6}._errorText_t2w2u_40{color:var(--color-vermillion)}._actions_t2w2u_44{gap:var(--space-3);justify-content:center;display:flex}._confirmBtn_t2w2u_50,._cancelBtn_t2w2u_50,._errorConfirmBtn_t2w2u_50{padding:var(--space-2) var(--space-6);border-radius:var(--radius-sm);cursor:pointer;min-width:100px;font-weight:700;transition:all .2s}._confirmBtn_t2w2u_50{background:var(--color-ink-black);color:#fff;border:none}._confirmBtn_t2w2u_50:hover{opacity:.9}._cancelBtn_t2w2u_50{color:var(--color-ink-mid);border:1px solid var(--color-ink-mid);background:0 0}._cancelBtn_t2w2u_50:hover{background:#0000000d}._errorConfirmBtn_t2w2u_50{background:var(--color-vermillion);color:#fff;border:none}._errorConfirmBtn_t2w2u_50:hover{opacity:.9}._overlay_1hq9n_1{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:2000;padding:var(--space-4);background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}._modal_1hq9n_13{background:var(--color-xuan-paper);width:100%;max-width:400px;padding:var(--space-6);border:1px solid #0000000d;border-radius:8px;position:relative;box-shadow:0 4px 12px #0000001a}._closeBtn_1hq9n_24{color:var(--color-ink-light);cursor:pointer;background:0 0;border:none;padding:4px;font-size:1.5rem;line-height:1;position:absolute;top:12px;right:12px}._closeBtn_1hq9n_24:hover{color:var(--color-ink-black)}._title_1hq9n_41{text-align:center;margin-top:0;margin-bottom:var(--space-4);font-family:var(--font-serif);color:var(--color-ink-black);font-size:1.2rem}._tabs_1hq9n_50{margin-bottom:var(--space-6);border-bottom:1px solid var(--color-xuan-warm);display:flex}._tabs_1hq9n_50 button{padding:var(--space-2) 0;color:var(--color-ink-light);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;font-size:.95rem}._tabs_1hq9n_50 button._activeTab_1hq9n_67{color:var(--color-ink-black);border-bottom-color:var(--color-vermillion);font-weight:600}._statsGrid_1hq9n_74{gap:var(--space-2);text-align:center;justify-content:space-around;display:flex}._statBox_1hq9n_81{gap:var(--space-1);flex-direction:column;flex:1;display:flex}._statNum_1hq9n_88{color:var(--color-ink-black);font-size:1.5rem;font-weight:700}._statLabel_1hq9n_94{color:var(--color-ink-light);font-size:.75rem}._transferSection_1hq9n_100{gap:var(--space-4);flex-direction:column;display:flex}._desc_1hq9n_106{color:var(--color-ink-mid);text-align:center;margin:0;font-size:.8rem}._box_1hq9n_113{background:var(--color-xuan-warm);padding:var(--space-4);text-align:center;border-radius:6px}._box_1hq9n_113 h3{margin-top:0;margin-bottom:var(--space-2);color:var(--color-ink-black);font-size:.9rem}._box_1hq9n_113 button{background:var(--color-ink-black);color:#fff;padding:var(--space-2) var(--space-4);cursor:pointer;border:none;border-radius:4px;font-size:.85rem}._box_1hq9n_113 button:disabled{background:var(--color-ink-light);cursor:not-allowed}._codeDisplay_1hq9n_142{letter-spacing:4px;color:var(--color-vermillion);padding:var(--space-2);border:1px solid var(--color-xuan-warm);background:#ffffff80;border-radius:4px;font-family:monospace;font-size:1.5rem;font-weight:700}._box_1hq9n_113 input{width:100%;padding:var(--space-2);margin-bottom:var(--space-2);text-align:center;letter-spacing:2px;text-transform:uppercase;border:1px solid #0000001a;border-radius:4px;font-size:1.2rem;display:block}._error_1hq9n_167{margin-top:var(--space-2);color:var(--color-wrong);margin-bottom:0;font-size:.75rem}._dangerZone_1hq9n_174{margin-top:var(--space-8);padding-top:var(--space-4);border-top:1px dashed #c0392b4d}._dangerZone_1hq9n_174 h3{color:var(--color-vermillion);margin-top:0;margin-bottom:var(--space-1);font-size:.9rem}._dangerZone_1hq9n_174 p{color:var(--color-ink-light);margin-top:0;margin-bottom:var(--space-3);font-size:.75rem}._resetBtn_1hq9n_194{width:100%;padding:var(--space-2);cursor:pointer;border-radius:4px;font-size:.85rem;transition:all .2s;border:1px solid var(--color-vermillion)!important;color:var(--color-vermillion)!important;background:0 0!important}._resetBtn_1hq9n_194:hover{background:var(--color-vermillion)!important;color:#fff!important}._overlay_1nzlv_1{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:var(--space-4);z-index:2000;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}._modal_1nzlv_13{background:var(--color-xuan-paper);border:2px solid var(--color-ink-mid);border-radius:var(--radius-md);width:100%;max-width:500px;max-height:90vh;padding:var(--space-8) var(--space-6);box-shadow:var(--shadow-xl);color:var(--color-ink-black);background-image:url(https://www.transparenttextures.com/patterns/natural-paper.png);position:relative;overflow-y:auto}._closeBtn_1nzlv_28{top:var(--space-4);right:var(--space-4);cursor:pointer;color:var(--color-ink-light);background:0 0;border:none;font-size:2rem;line-height:1;position:absolute}._title_1nzlv_40{font-family:var(--font-serif);text-align:center;margin-bottom:var(--space-6);color:var(--color-ink-black);font-size:1.75rem;font-weight:900}._content_1nzlv_49{gap:var(--space-6);flex-direction:column;line-height:1.6;display:flex}._content_1nzlv_49 h3{font-family:var(--font-serif);margin-bottom:var(--space-2);border-bottom:1px solid #4a3f3833;padding-bottom:4px;font-size:1.1rem}._examples_1nzlv_64{gap:var(--space-2);margin-top:var(--space-3);flex-direction:column;font-size:.9rem;display:flex}._exampleRow_1nzlv_72{align-items:center;gap:var(--space-3);display:flex}._boxCorrect_1nzlv_78{background:var(--color-correct);color:#fff;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;font-size:.8rem;display:flex}._boxPartial_1nzlv_90{background:var(--color-partial);color:#fff;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;font-size:.8rem;display:flex}._boxWrong_1nzlv_102{background:var(--color-wrong);color:#fff;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;font-size:.8rem;display:flex}._boxArrow_1nzlv_114{background:var(--color-ink-mid);color:#fff;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;font-size:.8rem;display:flex}._boxArrowGroup_1nzlv_126{gap:4px;display:flex}._attrList_1nzlv_131{padding:0;font-size:.95rem;list-style:none}._attrList_1nzlv_131 li{margin-bottom:var(--space-2)}._note_1nzlv_141{color:var(--color-ink-light);margin-top:4px;font-size:.85rem;display:block}._disclaimer_1nzlv_148{border-left:3px solid var(--color-vermillion);padding:var(--space-3) var(--space-4);background:#b33a3a0d;font-size:.85rem}._disclaimer_1nzlv_148 a{color:var(--color-vermillion);text-decoration:underline}._inspiration_1nzlv_160{opacity:.7;text-align:center;border-top:1px solid #4a3f381a;margin-top:1.5rem;padding-top:1rem;font-size:.8rem}._inspiration_1nzlv_160 a{color:var(--color-ink-mid);font-weight:600;text-decoration:none}._inspiration_1nzlv_160 a:hover{text-decoration:underline}._confirmBtn_1nzlv_179{width:100%;margin-top:var(--space-8);padding:var(--space-3);background:var(--color-ink-black);color:#fff;border-radius:var(--radius-sm);cursor:pointer;border:none;font-weight:700;transition:opacity .2s;display:block}._confirmBtn_1nzlv_179:hover{opacity:.9}